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    <link:label xlink:type="resource" xlink:label="us-gaap_AssetsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:title="us-gaap_AssetsAbstract_lbl" xml:lang="en-US" id="us-gaap_AssetsAbstract_lbl">ASSETS</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AssetsAbstract" xlink:to="us-gaap_AssetsAbstract_lbl" xlink:title="label: AssetsAbstract to us-gaap_AssetsAbstract_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_AssetsAbstract_lbl1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_AssetsAbstract_lbl1" xml:lang="en-US" id="us-gaap_AssetsAbstract_lbl1">Assets [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AssetsAbstract" xlink:to="us-gaap_AssetsAbstract_lbl1" xlink:title="label: AssetsAbstract to us-gaap_AssetsAbstract_lbl1" />
    <link:label xlink:type="resource" xlink:label="us-gaap_AssetsAbstract_lbl2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_AssetsAbstract_lbl2" xml:lang="en-US" id="us-gaap_AssetsAbstract_lbl2">Assets [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AssetsAbstract" xlink:to="us-gaap_AssetsAbstract_lbl2" xlink:title="label: AssetsAbstract to us-gaap_AssetsAbstract_lbl2" />
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    <link:label xlink:type="resource" xlink:label="us-gaap_Assets_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="us-gaap_Assets_lbl" xml:lang="en-US" id="us-gaap_Assets_lbl">TOTAL ASSETS</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="Assets" xlink:to="us-gaap_Assets_lbl" xlink:title="label: Assets to us-gaap_Assets_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_Assets_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_Assets_lbl1" xml:lang="en-US" id="us-gaap_Assets_lbl1">Assets</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="Assets" xlink:to="us-gaap_Assets_lbl1" xlink:title="label: Assets to us-gaap_Assets_lbl1" />
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    <link:label xlink:type="resource" xlink:label="us-gaap_AssetsCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="us-gaap_AssetsCurrent_lbl" xml:lang="en-US" id="us-gaap_AssetsCurrent_lbl">Total current assets</link:label>
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    <link:label xlink:type="resource" xlink:label="us-gaap_AssetsCurrent_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_AssetsCurrent_lbl1" xml:lang="en-US" id="us-gaap_AssetsCurrent_lbl1">Assets, Current</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AssetsCurrent" xlink:to="us-gaap_AssetsCurrent_lbl1" xlink:title="label: AssetsCurrent to us-gaap_AssetsCurrent_lbl1" />
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    <link:label xlink:type="resource" xlink:label="us-gaap_BasisOfAccounting_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:title="us-gaap_BasisOfAccounting_lbl" xml:lang="en-US" id="us-gaap_BasisOfAccounting_lbl">Basis of Presentation</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="BasisOfAccounting" xlink:to="us-gaap_BasisOfAccounting_lbl" xlink:title="label: BasisOfAccounting to us-gaap_BasisOfAccounting_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_BasisOfAccounting_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_BasisOfAccounting_lbl1" xml:lang="en-US" id="us-gaap_BasisOfAccounting_lbl1">Basis of Accounting [Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="BasisOfAccounting" xlink:to="us-gaap_BasisOfAccounting_lbl1" xlink:title="label: BasisOfAccounting to us-gaap_BasisOfAccounting_lbl1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BasisOfAccountingPolicyPolicyTextBlock" xlink:label="BasisOfAccountingPolicyPolicyTextBlock" xlink:title="BasisOfAccountingPolicyPolicyTextBlock" />
    <link:label xlink:type="resource" xlink:label="us-gaap_BasisOfAccountingPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_BasisOfAccountingPolicyPolicyTextBlock_lbl" xml:lang="en-US" id="us-gaap_BasisOfAccountingPolicyPolicyTextBlock_lbl">Basis of Presentation</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="BasisOfAccountingPolicyPolicyTextBlock" xlink:to="us-gaap_BasisOfAccountingPolicyPolicyTextBlock_lbl" xlink:title="label: BasisOfAccountingPolicyPolicyTextBlock to us-gaap_BasisOfAccountingPolicyPolicyTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_BasisOfAccountingPolicyPolicyTextBlock_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_BasisOfAccountingPolicyPolicyTextBlock_lbl1" xml:lang="en-US" id="us-gaap_BasisOfAccountingPolicyPolicyTextBlock_lbl1">Basis of Accounting, Policy [Policy Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="BasisOfAccountingPolicyPolicyTextBlock" xlink:to="us-gaap_BasisOfAccountingPolicyPolicyTextBlock_lbl1" xlink:title="label: BasisOfAccountingPolicyPolicyTextBlock to us-gaap_BasisOfAccountingPolicyPolicyTextBlock_lbl1" />
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    <link:label xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionAcquireeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_BusinessAcquisitionAcquireeDomain_lbl" xml:lang="en-US" id="us-gaap_BusinessAcquisitionAcquireeDomain_lbl">Business Acquisition, Acquiree [Domain]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="BusinessAcquisitionAcquireeDomain" xlink:to="us-gaap_BusinessAcquisitionAcquireeDomain_lbl" xlink:title="label: BusinessAcquisitionAcquireeDomain to us-gaap_BusinessAcquisitionAcquireeDomain_lbl" />
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    <link:label xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_BusinessAcquisitionAxis_lbl" xml:lang="en-US" id="us-gaap_BusinessAcquisitionAxis_lbl">Business Acquisition [Axis]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="BusinessAcquisitionAxis" xlink:to="us-gaap_BusinessAcquisitionAxis_lbl" xlink:title="label: BusinessAcquisitionAxis to us-gaap_BusinessAcquisitionAxis_lbl" />
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    <link:label xlink:type="resource" xlink:label="us-gaap_BusinessCombinationsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_BusinessCombinationsAbstract_lbl" xml:lang="en-US" id="us-gaap_BusinessCombinationsAbstract_lbl">Acquisition [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="BusinessCombinationsAbstract" xlink:to="us-gaap_BusinessCombinationsAbstract_lbl" xlink:title="label: BusinessCombinationsAbstract to us-gaap_BusinessCombinationsAbstract_lbl" />
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="BusinessAcquisitionLineItems" xlink:to="us-gaap_BusinessAcquisitionLineItems_lbl" xlink:title="label: BusinessAcquisitionLineItems to us-gaap_BusinessAcquisitionLineItems_lbl" />
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    <link:label xlink:type="resource" xlink:label="us-gaap_BusinessCombinationDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_BusinessCombinationDisclosureTextBlock_lbl" xml:lang="en-US" id="us-gaap_BusinessCombinationDisclosureTextBlock_lbl">Acquisition</link:label>
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    <link:label xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_ClassOfWarrantOrRightAxis_lbl" xml:lang="en-US" id="us-gaap_ClassOfWarrantOrRightAxis_lbl">Class of Warrant or Right [Axis]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ClassOfWarrantOrRightAxis" xlink:to="us-gaap_ClassOfWarrantOrRightAxis_lbl" xlink:title="label: ClassOfWarrantOrRightAxis to us-gaap_ClassOfWarrantOrRightAxis_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ClassOfTreasuryStockTable" xlink:label="ClassOfTreasuryStockTable" xlink:title="ClassOfTreasuryStockTable" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ClassOfTreasuryStockTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_ClassOfTreasuryStockTable_lbl" xml:lang="en-US" id="us-gaap_ClassOfTreasuryStockTable_lbl">Class of Treasury Stock [Table]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ClassOfTreasuryStockTable" xlink:to="us-gaap_ClassOfTreasuryStockTable_lbl" xlink:title="label: ClassOfTreasuryStockTable to us-gaap_ClassOfTreasuryStockTable_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" xlink:label="ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" xlink:title="ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_lbl" xml:lang="en-US" id="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_lbl">Number of shares that can be purchased under warrants (in shares)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" xlink:to="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_lbl" xlink:title="label: ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights to us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ClassOfWarrantOrRightDomain" xlink:label="ClassOfWarrantOrRightDomain" xlink:title="ClassOfWarrantOrRightDomain" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_ClassOfWarrantOrRightDomain_lbl" xml:lang="en-US" id="us-gaap_ClassOfWarrantOrRightDomain_lbl">Class of Warrant or Right [Domain]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ClassOfWarrantOrRightDomain" xlink:to="us-gaap_ClassOfWarrantOrRightDomain_lbl" xlink:title="label: ClassOfWarrantOrRightDomain to us-gaap_ClassOfWarrantOrRightDomain_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xlink:label="ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xlink:title="ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_lbl" xml:lang="en-US" id="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_lbl">Initial exercise price (in dollars per share)</link:label>
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    <link:label xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_lbl1" xml:lang="en-US" id="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_lbl1">Class of Warrant or Right, Exercise Price of Warrants or Rights</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommitmentsAndContingencies" xlink:label="CommitmentsAndContingencies" xlink:title="CommitmentsAndContingencies" />
    <link:label xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingencies_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_CommitmentsAndContingencies_lbl" xml:lang="en-US" id="us-gaap_CommitmentsAndContingencies_lbl">Commitments and contingencies</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommitmentsAndContingencies" xlink:to="us-gaap_CommitmentsAndContingencies_lbl" xlink:title="label: CommitmentsAndContingencies to us-gaap_CommitmentsAndContingencies_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockMember" xlink:label="CommonStockMember" xlink:title="CommonStockMember" />
    <link:label xlink:type="resource" xlink:label="us-gaap_CommonStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_CommonStockMember_lbl" xml:lang="en-US" id="us-gaap_CommonStockMember_lbl">Common Stock [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommonStockMember" xlink:to="us-gaap_CommonStockMember_lbl" xlink:title="label: CommonStockMember to us-gaap_CommonStockMember_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockSharesAuthorized" xlink:label="CommonStockSharesAuthorized" xlink:title="CommonStockSharesAuthorized" />
    <link:label xlink:type="resource" xlink:label="us-gaap_CommonStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_CommonStockSharesAuthorized_lbl" xml:lang="en-US" id="us-gaap_CommonStockSharesAuthorized_lbl">Common stock, authorized (in shares)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommonStockSharesAuthorized" xlink:to="us-gaap_CommonStockSharesAuthorized_lbl" xlink:title="label: CommonStockSharesAuthorized to us-gaap_CommonStockSharesAuthorized_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockSharesIssued" xlink:label="CommonStockSharesIssued" xlink:title="CommonStockSharesIssued" />
    <link:label xlink:type="resource" xlink:label="us-gaap_CommonStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_CommonStockSharesIssued_lbl" xml:lang="en-US" id="us-gaap_CommonStockSharesIssued_lbl">Common stock, issued (in shares)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommonStockSharesIssued" xlink:to="us-gaap_CommonStockSharesIssued_lbl" xlink:title="label: CommonStockSharesIssued to us-gaap_CommonStockSharesIssued_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockParOrStatedValuePerShare" xlink:label="CommonStockParOrStatedValuePerShare" xlink:title="CommonStockParOrStatedValuePerShare" />
    <link:label xlink:type="resource" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_CommonStockParOrStatedValuePerShare_lbl" xml:lang="en-US" id="us-gaap_CommonStockParOrStatedValuePerShare_lbl">Common stock, par value (in dollars per share)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommonStockParOrStatedValuePerShare" xlink:to="us-gaap_CommonStockParOrStatedValuePerShare_lbl" xlink:title="label: CommonStockParOrStatedValuePerShare to us-gaap_CommonStockParOrStatedValuePerShare_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockValue" xlink:label="CommonStockValue" xlink:title="CommonStockValue" />
    <link:label xlink:type="resource" xlink:label="us-gaap_CommonStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_CommonStockValue_lbl" xml:lang="en-US" id="us-gaap_CommonStockValue_lbl">Common stock; par value $.01 per share, 50,000,000 shares authorized; 19,069,782 and 18,648,854 shares issued and outstanding at December 31, 2017 and March 31, 2017, respectively</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommonStockValue" xlink:to="us-gaap_CommonStockValue_lbl" xlink:title="label: CommonStockValue to us-gaap_CommonStockValue_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="CommonStockSharesOutstanding" xlink:title="CommonStockSharesOutstanding" />
    <link:label xlink:type="resource" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_CommonStockSharesOutstanding_lbl" xml:lang="en-US" id="us-gaap_CommonStockSharesOutstanding_lbl">Common stock, outstanding (in shares)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommonStockSharesOutstanding" xlink:to="us-gaap_CommonStockSharesOutstanding_lbl" xlink:title="label: CommonStockSharesOutstanding to us-gaap_CommonStockSharesOutstanding_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax" xlink:label="ComprehensiveIncomeNetOfTax" xlink:title="ComprehensiveIncomeNetOfTax" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ComprehensiveIncomeNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="us-gaap_ComprehensiveIncomeNetOfTax_lbl" xml:lang="en-US" id="us-gaap_ComprehensiveIncomeNetOfTax_lbl">Comprehensive (loss) income</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ComprehensiveIncomeNetOfTax" xlink:to="us-gaap_ComprehensiveIncomeNetOfTax_lbl" xlink:title="label: ComprehensiveIncomeNetOfTax to us-gaap_ComprehensiveIncomeNetOfTax_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ComprehensiveIncomeNetOfTax_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_ComprehensiveIncomeNetOfTax_lbl1" xml:lang="en-US" id="us-gaap_ComprehensiveIncomeNetOfTax_lbl1">Comprehensive Income (Loss), Net of Tax, Attributable to Parent</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ComprehensiveIncomeNetOfTax" xlink:to="us-gaap_ComprehensiveIncomeNetOfTax_lbl1" xlink:title="label: ComprehensiveIncomeNetOfTax to us-gaap_ComprehensiveIncomeNetOfTax_lbl1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ComprehensiveIncomeNoteTextBlock" xlink:label="ComprehensiveIncomeNoteTextBlock" xlink:title="ComprehensiveIncomeNoteTextBlock" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ComprehensiveIncomeNoteTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_ComprehensiveIncomeNoteTextBlock_lbl" xml:lang="en-US" id="us-gaap_ComprehensiveIncomeNoteTextBlock_lbl">Accumulated Other Comprehensive Income (Loss)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ComprehensiveIncomeNoteTextBlock" xlink:to="us-gaap_ComprehensiveIncomeNoteTextBlock_lbl" xlink:title="label: ComprehensiveIncomeNoteTextBlock to us-gaap_ComprehensiveIncomeNoteTextBlock_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis" xlink:label="ConcentrationRiskByBenchmarkAxis" xlink:title="ConcentrationRiskByBenchmarkAxis" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ConcentrationRiskByBenchmarkAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_ConcentrationRiskByBenchmarkAxis_lbl" xml:lang="en-US" id="us-gaap_ConcentrationRiskByBenchmarkAxis_lbl">Concentration Risk Benchmark [Axis]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConcentrationRiskByBenchmarkAxis" xlink:to="us-gaap_ConcentrationRiskByBenchmarkAxis_lbl" xlink:title="label: ConcentrationRiskByBenchmarkAxis to us-gaap_ConcentrationRiskByBenchmarkAxis_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConcentrationRiskDisclosureTextBlock" xlink:label="ConcentrationRiskDisclosureTextBlock" xlink:title="ConcentrationRiskDisclosureTextBlock" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ConcentrationRiskDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:title="us-gaap_ConcentrationRiskDisclosureTextBlock_lbl" xml:lang="en-US" id="us-gaap_ConcentrationRiskDisclosureTextBlock_lbl">Significant Customer and Other Information</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConcentrationRiskDisclosureTextBlock" xlink:to="us-gaap_ConcentrationRiskDisclosureTextBlock_lbl" xlink:title="label: ConcentrationRiskDisclosureTextBlock to us-gaap_ConcentrationRiskDisclosureTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ConcentrationRiskDisclosureTextBlock_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_ConcentrationRiskDisclosureTextBlock_lbl1" xml:lang="en-US" id="us-gaap_ConcentrationRiskDisclosureTextBlock_lbl1">Concentration Risk Disclosure [Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConcentrationRiskDisclosureTextBlock" xlink:to="us-gaap_ConcentrationRiskDisclosureTextBlock_lbl1" xlink:title="label: ConcentrationRiskDisclosureTextBlock to us-gaap_ConcentrationRiskDisclosureTextBlock_lbl1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConcentrationRiskLineItems" xlink:label="ConcentrationRiskLineItems" xlink:title="ConcentrationRiskLineItems" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ConcentrationRiskLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_ConcentrationRiskLineItems_lbl" xml:lang="en-US" id="us-gaap_ConcentrationRiskLineItems_lbl">Concentration Risk [Line Items]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConcentrationRiskLineItems" xlink:to="us-gaap_ConcentrationRiskLineItems_lbl" xlink:title="label: ConcentrationRiskLineItems to us-gaap_ConcentrationRiskLineItems_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConcentrationRiskTable" xlink:label="ConcentrationRiskTable" xlink:title="ConcentrationRiskTable" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ConcentrationRiskTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_ConcentrationRiskTable_lbl" xml:lang="en-US" id="us-gaap_ConcentrationRiskTable_lbl">Concentration Risk [Table]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConcentrationRiskTable" xlink:to="us-gaap_ConcentrationRiskTable_lbl" xlink:title="label: ConcentrationRiskTable to us-gaap_ConcentrationRiskTable_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConcentrationRiskBenchmarkDomain" xlink:label="ConcentrationRiskBenchmarkDomain" xlink:title="ConcentrationRiskBenchmarkDomain" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ConcentrationRiskBenchmarkDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_ConcentrationRiskBenchmarkDomain_lbl" xml:lang="en-US" id="us-gaap_ConcentrationRiskBenchmarkDomain_lbl">Concentration Risk Benchmark [Domain]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConcentrationRiskBenchmarkDomain" xlink:to="us-gaap_ConcentrationRiskBenchmarkDomain_lbl" xlink:title="label: ConcentrationRiskBenchmarkDomain to us-gaap_ConcentrationRiskBenchmarkDomain_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConcentrationRiskPercentage1" xlink:label="ConcentrationRiskPercentage1" xlink:title="ConcentrationRiskPercentage1" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ConcentrationRiskPercentage1_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_ConcentrationRiskPercentage1_lbl" xml:lang="en-US" id="us-gaap_ConcentrationRiskPercentage1_lbl">Concentration risk percentage</link:label>
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    <link:label xlink:type="resource" xlink:label="us-gaap_CreditFacilityDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_CreditFacilityDomain_lbl" xml:lang="en-US" id="us-gaap_CreditFacilityDomain_lbl">Credit Facility [Domain]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CreditFacilityDomain" xlink:to="us-gaap_CreditFacilityDomain_lbl" xlink:title="label: CreditFacilityDomain to us-gaap_CreditFacilityDomain_lbl" />
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentCarryingAmount" xlink:label="DebtInstrumentCarryingAmount" xlink:title="DebtInstrumentCarryingAmount" />
    <link:label xlink:type="resource" xlink:label="us-gaap_DebtInstrumentCarryingAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_DebtInstrumentCarryingAmount_lbl" xml:lang="en-US" id="us-gaap_DebtInstrumentCarryingAmount_lbl">Principal amount of term loan</link:label>
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    <link:label xlink:type="resource" xlink:label="us-gaap_DebtInstrumentCarryingAmount_lbl1" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="us-gaap_DebtInstrumentCarryingAmount_lbl1" xml:lang="en-US" id="us-gaap_DebtInstrumentCarryingAmount_lbl1">Total payments</link:label>
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    <link:label xlink:type="resource" xlink:label="us-gaap_DebtInstrumentMaturityDate_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_DebtInstrumentMaturityDate_lbl1" xml:lang="en-US" id="us-gaap_DebtInstrumentMaturityDate_lbl1">Debt Instrument, Maturity Date</link:label>
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentLineItems" xlink:to="us-gaap_DebtInstrumentLineItems_lbl" xlink:title="label: DebtInstrumentLineItems to us-gaap_DebtInstrumentLineItems_lbl" />
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentNameDomain" xlink:to="us-gaap_DebtInstrumentNameDomain_lbl" xlink:title="label: DebtInstrumentNameDomain to us-gaap_DebtInstrumentNameDomain_lbl" />
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    <link:label xlink:type="resource" xlink:label="us-gaap_DebtInstrumentsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_DebtInstrumentsAbstract_lbl" xml:lang="en-US" id="us-gaap_DebtInstrumentsAbstract_lbl">Summarized information about the term loan [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentsAbstract" xlink:to="us-gaap_DebtInstrumentsAbstract_lbl" xlink:title="label: DebtInstrumentsAbstract to us-gaap_DebtInstrumentsAbstract_lbl" />
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    <link:label xlink:type="resource" xlink:label="us-gaap_DeferredIncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:title="us-gaap_DeferredIncomeTaxExpenseBenefit_lbl" xml:lang="en-US" id="us-gaap_DeferredIncomeTaxExpenseBenefit_lbl">Deferred income taxes</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DeferredIncomeTaxExpenseBenefit" xlink:to="us-gaap_DeferredIncomeTaxExpenseBenefit_lbl" xlink:title="label: DeferredIncomeTaxExpenseBenefit to us-gaap_DeferredIncomeTaxExpenseBenefit_lbl" />
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    <link:label xlink:type="resource" xlink:label="us-gaap_DeferredTaxLiabilitiesNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_DeferredTaxLiabilitiesNoncurrent_lbl" xml:lang="en-US" id="us-gaap_DeferredTaxLiabilitiesNoncurrent_lbl">Long-term deferred income taxes</link:label>
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DeferredTaxLiabilitiesNoncurrent" xlink:to="us-gaap_DeferredTaxLiabilitiesNoncurrent_lbl1" xlink:title="label: DeferredTaxLiabilitiesNoncurrent to us-gaap_DeferredTaxLiabilitiesNoncurrent_lbl1" />
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityAbstract" xlink:label="EquityAbstract" xlink:title="EquityAbstract" />
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    <link:label xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_lbl" xml:lang="en-US" id="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_lbl">2020</link:label>
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    <link:label xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_lbl" xml:lang="en-US" id="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_lbl">2021</link:label>
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    <link:label xlink:type="resource" xlink:label="us-gaap_IncomeStatementAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_IncomeStatementAbstract_lbl" xml:lang="en-US" id="us-gaap_IncomeStatementAbstract_lbl">Consolidated Statements of Operations (Unaudited) [Abstract]</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestPaidNet" xlink:label="InterestPaidNet" xlink:title="InterestPaidNet" />
    <link:label xlink:type="resource" xlink:label="us-gaap_InterestPaidNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_InterestPaidNet_lbl" xml:lang="en-US" id="us-gaap_InterestPaidNet_lbl">Interest, net</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InterestPaidNet" xlink:to="us-gaap_InterestPaidNet_lbl" xlink:title="label: InterestPaidNet to us-gaap_InterestPaidNet_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_InterestPaidNet_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_InterestPaidNet_lbl1" xml:lang="en-US" id="us-gaap_InterestPaidNet_lbl1">Interest Paid, Net</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InterestPaidNet" xlink:to="us-gaap_InterestPaidNet_lbl1" xlink:title="label: InterestPaidNet to us-gaap_InterestPaidNet_lbl1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InventoryDisclosureTextBlock" xlink:label="InventoryDisclosureTextBlock" xlink:title="InventoryDisclosureTextBlock" />
    <link:label xlink:type="resource" xlink:label="us-gaap_InventoryDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:title="us-gaap_InventoryDisclosureTextBlock_lbl" xml:lang="en-US" id="us-gaap_InventoryDisclosureTextBlock_lbl">Inventory</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InventoryDisclosureTextBlock" xlink:to="us-gaap_InventoryDisclosureTextBlock_lbl" xlink:title="label: InventoryDisclosureTextBlock to us-gaap_InventoryDisclosureTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_InventoryDisclosureTextBlock_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_InventoryDisclosureTextBlock_lbl1" xml:lang="en-US" id="us-gaap_InventoryDisclosureTextBlock_lbl1">Inventory Disclosure [Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InventoryDisclosureTextBlock" xlink:to="us-gaap_InventoryDisclosureTextBlock_lbl1" xlink:title="label: InventoryDisclosureTextBlock to us-gaap_InventoryDisclosureTextBlock_lbl1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InventoryGross" xlink:label="InventoryGross" xlink:title="InventoryGross" />
    <link:label xlink:type="resource" xlink:label="us-gaap_InventoryGross_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="us-gaap_InventoryGross_lbl" xml:lang="en-US" id="us-gaap_InventoryGross_lbl">Non-core inventory, gross</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InventoryGross" xlink:to="us-gaap_InventoryGross_lbl" xlink:title="label: InventoryGross to us-gaap_InventoryGross_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_InventoryGross_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_InventoryGross_lbl1" xml:lang="en-US" id="us-gaap_InventoryGross_lbl1">Inventory, Gross</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InventoryGross" xlink:to="us-gaap_InventoryGross_lbl1" xlink:title="label: InventoryGross to us-gaap_InventoryGross_lbl1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InventoryWriteDown" xlink:label="InventoryWriteDown" xlink:title="InventoryWriteDown" />
    <link:label xlink:type="resource" xlink:label="us-gaap_InventoryWriteDown_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_InventoryWriteDown_lbl" xml:lang="en-US" id="us-gaap_InventoryWriteDown_lbl">Net provision for inventory reserves</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InventoryWriteDown" xlink:to="us-gaap_InventoryWriteDown_lbl" xlink:title="label: InventoryWriteDown to us-gaap_InventoryWriteDown_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InventoryFinishedGoods" xlink:label="InventoryFinishedGoods" xlink:title="InventoryFinishedGoods" />
    <link:label xlink:type="resource" xlink:label="us-gaap_InventoryFinishedGoods_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_InventoryFinishedGoods_lbl" xml:lang="en-US" id="us-gaap_InventoryFinishedGoods_lbl">Finished goods</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InventoryFinishedGoods" xlink:to="us-gaap_InventoryFinishedGoods_lbl" xlink:title="label: InventoryFinishedGoods to us-gaap_InventoryFinishedGoods_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InventoryDisclosureAbstract" xlink:label="InventoryDisclosureAbstract" xlink:title="InventoryDisclosureAbstract" />
    <link:label xlink:type="resource" xlink:label="us-gaap_InventoryDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_InventoryDisclosureAbstract_lbl" xml:lang="en-US" id="us-gaap_InventoryDisclosureAbstract_lbl">Inventory [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InventoryDisclosureAbstract" xlink:to="us-gaap_InventoryDisclosureAbstract_lbl" xlink:title="label: InventoryDisclosureAbstract to us-gaap_InventoryDisclosureAbstract_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InventoryWorkInProcess" xlink:label="InventoryWorkInProcess" xlink:title="InventoryWorkInProcess" />
    <link:label xlink:type="resource" xlink:label="us-gaap_InventoryWorkInProcess_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_InventoryWorkInProcess_lbl" xml:lang="en-US" id="us-gaap_InventoryWorkInProcess_lbl">Work-in-process</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InventoryWorkInProcess" xlink:to="us-gaap_InventoryWorkInProcess_lbl" xlink:title="label: InventoryWorkInProcess to us-gaap_InventoryWorkInProcess_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InventoryRawMaterials" xlink:label="InventoryRawMaterials" xlink:title="InventoryRawMaterials" />
    <link:label xlink:type="resource" xlink:label="us-gaap_InventoryRawMaterials_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_InventoryRawMaterials_lbl" xml:lang="en-US" id="us-gaap_InventoryRawMaterials_lbl">Raw materials</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InventoryRawMaterials" xlink:to="us-gaap_InventoryRawMaterials_lbl" xlink:title="label: InventoryRawMaterials to us-gaap_InventoryRawMaterials_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InvestmentsFairValueDisclosure" xlink:label="InvestmentsFairValueDisclosure" xlink:title="InvestmentsFairValueDisclosure" />
    <link:label xlink:type="resource" xlink:label="us-gaap_InvestmentsFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_InvestmentsFairValueDisclosure_lbl" xml:lang="en-US" id="us-gaap_InvestmentsFairValueDisclosure_lbl">Mutual funds</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentsFairValueDisclosure" xlink:to="us-gaap_InvestmentsFairValueDisclosure_lbl" xlink:title="label: InvestmentsFairValueDisclosure to us-gaap_InvestmentsFairValueDisclosure_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_InvestmentsFairValueDisclosure_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_InvestmentsFairValueDisclosure_lbl1" xml:lang="en-US" id="us-gaap_InvestmentsFairValueDisclosure_lbl1">Investments, Fair Value Disclosure</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentsFairValueDisclosure" xlink:to="us-gaap_InvestmentsFairValueDisclosure_lbl1" xlink:title="label: InvestmentsFairValueDisclosure to us-gaap_InvestmentsFairValueDisclosure_lbl1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LondonInterbankOfferedRateLIBORMember" xlink:label="LondonInterbankOfferedRateLIBORMember" xlink:title="LondonInterbankOfferedRateLIBORMember" />
    <link:label xlink:type="resource" xlink:label="us-gaap_LondonInterbankOfferedRateLIBORMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_LondonInterbankOfferedRateLIBORMember_lbl" xml:lang="en-US" id="us-gaap_LondonInterbankOfferedRateLIBORMember_lbl">LIBOR [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LondonInterbankOfferedRateLIBORMember" xlink:to="us-gaap_LondonInterbankOfferedRateLIBORMember_lbl" xlink:title="label: LondonInterbankOfferedRateLIBORMember to us-gaap_LondonInterbankOfferedRateLIBORMember_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="LongtermDebtTypeDomain" xlink:title="LongtermDebtTypeDomain" />
    <link:label xlink:type="resource" xlink:label="us-gaap_LongtermDebtTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_LongtermDebtTypeDomain_lbl" xml:lang="en-US" id="us-gaap_LongtermDebtTypeDomain_lbl">Long-term Debt, Type [Domain]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LongtermDebtTypeDomain" xlink:to="us-gaap_LongtermDebtTypeDomain_lbl" xlink:title="label: LongtermDebtTypeDomain to us-gaap_LongtermDebtTypeDomain_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongtermDebtTypeAxis" xlink:label="LongtermDebtTypeAxis" xlink:title="LongtermDebtTypeAxis" />
    <link:label xlink:type="resource" xlink:label="us-gaap_LongtermDebtTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_LongtermDebtTypeAxis_lbl" xml:lang="en-US" id="us-gaap_LongtermDebtTypeAxis_lbl">Long-term Debt, Type [Axis]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LongtermDebtTypeAxis" xlink:to="us-gaap_LongtermDebtTypeAxis_lbl" xlink:title="label: LongtermDebtTypeAxis to us-gaap_LongtermDebtTypeAxis_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LetterOfCreditMember" xlink:label="LetterOfCreditMember" xlink:title="LetterOfCreditMember" />
    <link:label xlink:type="resource" xlink:label="us-gaap_LetterOfCreditMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_LetterOfCreditMember_lbl" xml:lang="en-US" id="us-gaap_LetterOfCreditMember_lbl">Letters of Credit [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LetterOfCreditMember" xlink:to="us-gaap_LetterOfCreditMember_lbl" xlink:title="label: LetterOfCreditMember to us-gaap_LetterOfCreditMember_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="LiabilitiesAndStockholdersEquity" xlink:title="LiabilitiesAndStockholdersEquity" />
    <link:label xlink:type="resource" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="us-gaap_LiabilitiesAndStockholdersEquity_lbl" xml:lang="en-US" id="us-gaap_LiabilitiesAndStockholdersEquity_lbl">TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LiabilitiesAndStockholdersEquity" xlink:to="us-gaap_LiabilitiesAndStockholdersEquity_lbl" xlink:title="label: LiabilitiesAndStockholdersEquity to us-gaap_LiabilitiesAndStockholdersEquity_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_LiabilitiesAndStockholdersEquity_lbl1" xml:lang="en-US" id="us-gaap_LiabilitiesAndStockholdersEquity_lbl1">Liabilities and Equity</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LiabilitiesAndStockholdersEquity" xlink:to="us-gaap_LiabilitiesAndStockholdersEquity_lbl1" xlink:title="label: LiabilitiesAndStockholdersEquity to us-gaap_LiabilitiesAndStockholdersEquity_lbl1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesAbstract" xlink:label="LiabilitiesAbstract" xlink:title="LiabilitiesAbstract" />
    <link:label xlink:type="resource" xlink:label="us-gaap_LiabilitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_LiabilitiesAbstract_lbl" xml:lang="en-US" id="us-gaap_LiabilitiesAbstract_lbl">Liabilities [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LiabilitiesAbstract" xlink:to="us-gaap_LiabilitiesAbstract_lbl" xlink:title="label: LiabilitiesAbstract to us-gaap_LiabilitiesAbstract_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_LiabilitiesAbstract_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_LiabilitiesAbstract_lbl1" xml:lang="en-US" id="us-gaap_LiabilitiesAbstract_lbl1">Liabilities [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LiabilitiesAbstract" xlink:to="us-gaap_LiabilitiesAbstract_lbl1" xlink:title="label: LiabilitiesAbstract to us-gaap_LiabilitiesAbstract_lbl1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Liabilities" xlink:label="Liabilities" xlink:title="Liabilities" />
    <link:label xlink:type="resource" xlink:label="us-gaap_Liabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="us-gaap_Liabilities_lbl" xml:lang="en-US" id="us-gaap_Liabilities_lbl">Total liabilities</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="Liabilities" xlink:to="us-gaap_Liabilities_lbl" xlink:title="label: Liabilities to us-gaap_Liabilities_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_Liabilities_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_Liabilities_lbl1" xml:lang="en-US" id="us-gaap_Liabilities_lbl1">Liabilities</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="Liabilities" xlink:to="us-gaap_Liabilities_lbl1" xlink:title="label: Liabilities to us-gaap_Liabilities_lbl1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:label="LiabilitiesAndStockholdersEquityAbstract" xlink:title="LiabilitiesAndStockholdersEquityAbstract" />
    <link:label xlink:type="resource" xlink:label="us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl" xml:lang="en-US" id="us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl">LIABILITIES AND SHAREHOLDERS' EQUITY</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LiabilitiesAndStockholdersEquityAbstract" xlink:to="us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl" xlink:title="label: LiabilitiesAndStockholdersEquityAbstract to us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="LiabilitiesCurrent" xlink:title="LiabilitiesCurrent" />
    <link:label xlink:type="resource" xlink:label="us-gaap_LiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="us-gaap_LiabilitiesCurrent_lbl" xml:lang="en-US" id="us-gaap_LiabilitiesCurrent_lbl">Total current liabilities</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LiabilitiesCurrent" xlink:to="us-gaap_LiabilitiesCurrent_lbl" xlink:title="label: LiabilitiesCurrent to us-gaap_LiabilitiesCurrent_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_LiabilitiesCurrent_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_LiabilitiesCurrent_lbl1" xml:lang="en-US" id="us-gaap_LiabilitiesCurrent_lbl1">Liabilities, Current</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LiabilitiesCurrent" xlink:to="us-gaap_LiabilitiesCurrent_lbl1" xlink:title="label: LiabilitiesCurrent to us-gaap_LiabilitiesCurrent_lbl1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesCurrentAbstract" xlink:label="LiabilitiesCurrentAbstract" xlink:title="LiabilitiesCurrentAbstract" />
    <link:label xlink:type="resource" xlink:label="us-gaap_LiabilitiesCurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_LiabilitiesCurrentAbstract_lbl" xml:lang="en-US" id="us-gaap_LiabilitiesCurrentAbstract_lbl">Current liabilities:</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LiabilitiesCurrentAbstract" xlink:to="us-gaap_LiabilitiesCurrentAbstract_lbl" xlink:title="label: LiabilitiesCurrentAbstract to us-gaap_LiabilitiesCurrentAbstract_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LineOfCredit" xlink:label="LineOfCredit" xlink:title="LineOfCredit" />
    <link:label xlink:type="resource" xlink:label="us-gaap_LineOfCredit_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_LineOfCredit_lbl" xml:lang="en-US" id="us-gaap_LineOfCredit_lbl">Outstanding balance under revolving loan</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LineOfCredit" xlink:to="us-gaap_LineOfCredit_lbl" xlink:title="label: LineOfCredit to us-gaap_LineOfCredit_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LineOfCreditFacilityAbstract" xlink:label="LineOfCreditFacilityAbstract" xlink:title="LineOfCreditFacilityAbstract" />
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LoansPayableMember" xlink:label="LoansPayableMember" xlink:title="LoansPayableMember" />
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    <link:label xlink:type="resource" xlink:label="us-gaap_LongTermDebt_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_LongTermDebt_lbl1" xml:lang="en-US" id="us-gaap_LongTermDebt_lbl1">Long-term Debt</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongTermDebtByMaturityAbstract" xlink:label="LongTermDebtByMaturityAbstract" xlink:title="LongTermDebtByMaturityAbstract" />
    <link:label xlink:type="resource" xlink:label="us-gaap_LongTermDebtByMaturityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_LongTermDebtByMaturityAbstract_lbl" xml:lang="en-US" id="us-gaap_LongTermDebtByMaturityAbstract_lbl">Future repayments of the Term Loan, by fiscal year [Abstract]</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour" xlink:label="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour" xlink:title="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour" />
    <link:label xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_lbl" xml:lang="en-US" id="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_lbl">2021</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree" xlink:label="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree" xlink:title="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree" />
    <link:label xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_lbl" xml:lang="en-US" id="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_lbl">2020</link:label>
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    <link:label xlink:type="resource" xlink:label="us-gaap_LongTermDebtCurrent_lbl1" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="us-gaap_LongTermDebtCurrent_lbl1" xml:lang="en-US" id="us-gaap_LongTermDebtCurrent_lbl1">Less current portion of term loan</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" xlink:label="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" xlink:title="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" />
    <link:label xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_lbl" xml:lang="en-US" id="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_lbl">2019</link:label>
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="MajorCustomersAxis" xlink:to="us-gaap_MajorCustomersAxis_lbl" xlink:title="label: MajorCustomersAxis to us-gaap_MajorCustomersAxis_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MaximumMember" xlink:label="MaximumMember" xlink:title="MaximumMember" />
    <link:label xlink:type="resource" xlink:label="us-gaap_MaximumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_MaximumMember_lbl" xml:lang="en-US" id="us-gaap_MaximumMember_lbl">Maximum [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="MaximumMember" xlink:to="us-gaap_MaximumMember_lbl" xlink:title="label: MaximumMember to us-gaap_MaximumMember_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MinimumMember" xlink:label="MinimumMember" xlink:title="MinimumMember" />
    <link:label xlink:type="resource" xlink:label="us-gaap_MinimumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_MinimumMember_lbl" xml:lang="en-US" id="us-gaap_MinimumMember_lbl">Minimum [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="MinimumMember" xlink:to="us-gaap_MinimumMember_lbl" xlink:title="label: MinimumMember to us-gaap_MinimumMember_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MovementInStandardProductWarrantyAccrualRollForward" xlink:label="MovementInStandardProductWarrantyAccrualRollForward" xlink:title="MovementInStandardProductWarrantyAccrualRollForward" />
    <link:label xlink:type="resource" xlink:label="us-gaap_MovementInStandardProductWarrantyAccrualRollForward_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_MovementInStandardProductWarrantyAccrualRollForward_lbl" xml:lang="en-US" id="us-gaap_MovementInStandardProductWarrantyAccrualRollForward_lbl">Change in warranty return accrual [Roll Forward]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="MovementInStandardProductWarrantyAccrualRollForward" xlink:to="us-gaap_MovementInStandardProductWarrantyAccrualRollForward_lbl" xlink:title="label: MovementInStandardProductWarrantyAccrualRollForward to us-gaap_MovementInStandardProductWarrantyAccrualRollForward_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_MovementInStandardProductWarrantyAccrualRollForward_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_MovementInStandardProductWarrantyAccrualRollForward_lbl1" xml:lang="en-US" id="us-gaap_MovementInStandardProductWarrantyAccrualRollForward_lbl1">Movement in Standard Product Warranty Accrual [Roll Forward]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="MovementInStandardProductWarrantyAccrualRollForward" xlink:to="us-gaap_MovementInStandardProductWarrantyAccrualRollForward_lbl1" xlink:title="label: MovementInStandardProductWarrantyAccrualRollForward to us-gaap_MovementInStandardProductWarrantyAccrualRollForward_lbl1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NameOfMajorCustomerDomain" xlink:label="NameOfMajorCustomerDomain" xlink:title="NameOfMajorCustomerDomain" />
    <link:label xlink:type="resource" xlink:label="us-gaap_NameOfMajorCustomerDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_NameOfMajorCustomerDomain_lbl" xml:lang="en-US" id="us-gaap_NameOfMajorCustomerDomain_lbl">Customer [Domain]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NameOfMajorCustomerDomain" xlink:to="us-gaap_NameOfMajorCustomerDomain_lbl" xlink:title="label: NameOfMajorCustomerDomain to us-gaap_NameOfMajorCustomerDomain_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NatureOfOperations" xlink:label="NatureOfOperations" xlink:title="NatureOfOperations" />
    <link:label xlink:type="resource" xlink:label="us-gaap_NatureOfOperations_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:title="us-gaap_NatureOfOperations_lbl" xml:lang="en-US" id="us-gaap_NatureOfOperations_lbl">Company Background and Organization</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NatureOfOperations" xlink:to="us-gaap_NatureOfOperations_lbl" xlink:title="label: NatureOfOperations to us-gaap_NatureOfOperations_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_NatureOfOperations_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_NatureOfOperations_lbl1" xml:lang="en-US" id="us-gaap_NatureOfOperations_lbl1">Nature of Operations [Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NatureOfOperations" xlink:to="us-gaap_NatureOfOperations_lbl1" xlink:title="label: NatureOfOperations to us-gaap_NatureOfOperations_lbl1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="NetCashProvidedByUsedInFinancingActivities" xlink:title="NetCashProvidedByUsedInFinancingActivities" />
    <link:label xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl" xml:lang="en-US" id="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl">Net cash provided by financing activities</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl" xlink:title="label: NetCashProvidedByUsedInFinancingActivities to us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl1" xml:lang="en-US" id="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl1">Net Cash Provided by (Used in) Financing Activities</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl1" xlink:title="label: NetCashProvidedByUsedInFinancingActivities to us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:label="NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:title="NetCashProvidedByUsedInFinancingActivitiesAbstract" />
    <link:label xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl" xml:lang="en-US" id="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl">Cash flows from financing activities:</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl" xlink:title="label: NetCashProvidedByUsedInFinancingActivitiesAbstract to us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:label="NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:title="NetCashProvidedByUsedInInvestingActivitiesAbstract" />
    <link:label xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl" xml:lang="en-US" id="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl">Cash flows from investing activities:</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl" xlink:title="label: NetCashProvidedByUsedInInvestingActivitiesAbstract to us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:title="NetCashProvidedByUsedInOperatingActivitiesAbstract" />
    <link:label xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xml:lang="en-US" id="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl">Cash flows from operating activities:</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:title="label: NetCashProvidedByUsedInOperatingActivitiesAbstract to us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="NetCashProvidedByUsedInInvestingActivities" xlink:title="NetCashProvidedByUsedInInvestingActivities" />
    <link:label xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl" xml:lang="en-US" id="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl">Net cash used in investing activities</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NetCashProvidedByUsedInInvestingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl" xlink:title="label: NetCashProvidedByUsedInInvestingActivities to us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl1" xml:lang="en-US" id="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl1">Net Cash Provided by (Used in) Investing Activities</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NetCashProvidedByUsedInInvestingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl1" xlink:title="label: NetCashProvidedByUsedInInvestingActivities to us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="NetCashProvidedByUsedInOperatingActivities" xlink:title="NetCashProvidedByUsedInOperatingActivities" />
    <link:label xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl" xml:lang="en-US" id="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl">Net cash used in operating activities</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl" xlink:title="label: NetCashProvidedByUsedInOperatingActivities to us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl1" xml:lang="en-US" id="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl1">Net Cash Provided by (Used in) Operating Activities</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl1" xlink:title="label: NetCashProvidedByUsedInOperatingActivities to us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="NetIncomeLoss" xlink:title="NetIncomeLoss" />
    <link:label xlink:type="resource" xlink:label="us-gaap_NetIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_NetIncomeLoss_lbl" xml:lang="en-US" id="us-gaap_NetIncomeLoss_lbl">Net (loss) income</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NetIncomeLoss" xlink:to="us-gaap_NetIncomeLoss_lbl" xlink:title="label: NetIncomeLoss to us-gaap_NetIncomeLoss_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_NetIncomeLoss_lbl1" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="us-gaap_NetIncomeLoss_lbl1" xml:lang="en-US" id="us-gaap_NetIncomeLoss_lbl1">Net (loss) income</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NetIncomeLoss" xlink:to="us-gaap_NetIncomeLoss_lbl1" xlink:title="label: NetIncomeLoss to us-gaap_NetIncomeLoss_lbl1" />
    <link:label xlink:type="resource" xlink:label="us-gaap_NetIncomeLoss_lbl2" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:title="us-gaap_NetIncomeLoss_lbl2" xml:lang="en-US" id="us-gaap_NetIncomeLoss_lbl2">Net income</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NetIncomeLoss" xlink:to="us-gaap_NetIncomeLoss_lbl2" xlink:title="label: NetIncomeLoss to us-gaap_NetIncomeLoss_lbl2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock" xlink:label="NewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock" xlink:title="NewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock" />
    <link:label xlink:type="resource" xlink:label="us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock_lbl" xml:lang="en-US" id="us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock_lbl">New Accounting Pronouncements</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock" xlink:to="us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock_lbl" xlink:title="label: NewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock to us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesAbstract" xlink:label="NewAccountingPronouncementsAndChangesInAccountingPrinciplesAbstract" xlink:title="NewAccountingPronouncementsAndChangesInAccountingPrinciplesAbstract" />
    <link:label xlink:type="resource" xlink:label="us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesAbstract_lbl" xml:lang="en-US" id="us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesAbstract_lbl">New Accounting Pronouncements [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NewAccountingPronouncementsAndChangesInAccountingPrinciplesAbstract" xlink:to="us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesAbstract_lbl" xlink:title="label: NewAccountingPronouncementsAndChangesInAccountingPrinciplesAbstract to us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesAbstract_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1" xlink:label="NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1" xlink:title="NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1" />
    <link:label xlink:type="resource" xlink:label="us-gaap_NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1_lbl" xml:lang="en-US" id="us-gaap_NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1_lbl">Plant and equipment acquired under capital lease</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1" xlink:to="us-gaap_NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1_lbl" xlink:title="label: NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1 to us-gaap_NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1_lbl" />
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    <link:label xlink:type="resource" xlink:label="us-gaap_NumberOfReportableSegments_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:title="us-gaap_NumberOfReportableSegments_lbl" xml:lang="en-US" id="us-gaap_NumberOfReportableSegments_lbl">Number of reportable segments</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NumberOfReportableSegments" xlink:to="us-gaap_NumberOfReportableSegments_lbl" xlink:title="label: NumberOfReportableSegments to us-gaap_NumberOfReportableSegments_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_NumberOfReportableSegments_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_NumberOfReportableSegments_lbl1" xml:lang="en-US" id="us-gaap_NumberOfReportableSegments_lbl1">Number of Reportable Segments</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NumberOfReportableSegments" xlink:to="us-gaap_NumberOfReportableSegments_lbl1" xlink:title="label: NumberOfReportableSegments to us-gaap_NumberOfReportableSegments_lbl1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OciBeforeReclassificationsNetOfTaxAttributableToParent" xlink:label="OciBeforeReclassificationsNetOfTaxAttributableToParent" xlink:title="OciBeforeReclassificationsNetOfTaxAttributableToParent" />
    <link:label xlink:type="resource" xlink:label="us-gaap_OciBeforeReclassificationsNetOfTaxAttributableToParent_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_OciBeforeReclassificationsNetOfTaxAttributableToParent_lbl" xml:lang="en-US" id="us-gaap_OciBeforeReclassificationsNetOfTaxAttributableToParent_lbl">Other comprehensive income (loss), net of tax</link:label>
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:to="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_lbl" xlink:title="label: OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract to us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_lbl" />
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    <link:label xlink:type="resource" xlink:label="us-gaap_OtherLiabilitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_OtherLiabilitiesAbstract_lbl" xml:lang="en-US" id="us-gaap_OtherLiabilitiesAbstract_lbl">Other liabilities [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OtherLiabilitiesAbstract" xlink:to="us-gaap_OtherLiabilitiesAbstract_lbl" xlink:title="label: OtherLiabilitiesAbstract to us-gaap_OtherLiabilitiesAbstract_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherAssetsNoncurrent" xlink:label="OtherAssetsNoncurrent" xlink:title="OtherAssetsNoncurrent" />
    <link:label xlink:type="resource" xlink:label="us-gaap_OtherAssetsNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_OtherAssetsNoncurrent_lbl" xml:lang="en-US" id="us-gaap_OtherAssetsNoncurrent_lbl">Other assets</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OtherAssetsNoncurrent" xlink:to="us-gaap_OtherAssetsNoncurrent_lbl" xlink:title="label: OtherAssetsNoncurrent to us-gaap_OtherAssetsNoncurrent_lbl" />
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax" xlink:label="OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax" xlink:title="OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax" />
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherLiabilitiesCurrentAbstract" xlink:label="OtherLiabilitiesCurrentAbstract" xlink:title="OtherLiabilitiesCurrentAbstract" />
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OtherLiabilitiesCurrentAbstract" xlink:to="us-gaap_OtherLiabilitiesCurrentAbstract_lbl" xlink:title="label: OtherLiabilitiesCurrentAbstract to us-gaap_OtherLiabilitiesCurrentAbstract_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent" xlink:label="OtherLiabilitiesNoncurrent" xlink:title="OtherLiabilitiesNoncurrent" />
    <link:label xlink:type="resource" xlink:label="us-gaap_OtherLiabilitiesNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_OtherLiabilitiesNoncurrent_lbl" xml:lang="en-US" id="us-gaap_OtherLiabilitiesNoncurrent_lbl">Other liabilities</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherLiabilitiesCurrent" xlink:label="OtherLiabilitiesCurrent" xlink:title="OtherLiabilitiesCurrent" />
    <link:label xlink:type="resource" xlink:label="us-gaap_OtherLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_OtherLiabilitiesCurrent_lbl" xml:lang="en-US" id="us-gaap_OtherLiabilitiesCurrent_lbl">Other current liabilities</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OtherLiabilitiesCurrent" xlink:to="us-gaap_OtherLiabilitiesCurrent_lbl" xlink:title="label: OtherLiabilitiesCurrent to us-gaap_OtherLiabilitiesCurrent_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract" xlink:label="OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract" xlink:title="OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract" />
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent" xlink:label="OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent" xlink:title="OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent" />
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent" xlink:label="OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent" xlink:title="OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent" />
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    <link:label xlink:type="resource" xlink:label="us-gaap_PaymentForContingentConsiderationLiabilityFinancingActivities_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_PaymentForContingentConsiderationLiabilityFinancingActivities_lbl1" xml:lang="en-US" id="us-gaap_PaymentForContingentConsiderationLiabilityFinancingActivities_lbl1">Payment for Contingent Consideration Liability, Financing Activities</link:label>
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    <link:label xlink:type="resource" xlink:label="us-gaap_PaymentsForProceedsFromShortTermInvestments_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="us-gaap_PaymentsForProceedsFromShortTermInvestments_lbl" xml:lang="en-US" id="us-gaap_PaymentsForProceedsFromShortTermInvestments_lbl">Change in short-term investments</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsForProceedsFromShortTermInvestments" xlink:to="us-gaap_PaymentsForProceedsFromShortTermInvestments_lbl" xlink:title="label: PaymentsForProceedsFromShortTermInvestments to us-gaap_PaymentsForProceedsFromShortTermInvestments_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_PaymentsForProceedsFromShortTermInvestments_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_PaymentsForProceedsFromShortTermInvestments_lbl1" xml:lang="en-US" id="us-gaap_PaymentsForProceedsFromShortTermInvestments_lbl1">Payments for (Proceeds from) Short-term Investments</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsForProceedsFromShortTermInvestments" xlink:to="us-gaap_PaymentsForProceedsFromShortTermInvestments_lbl1" xlink:title="label: PaymentsForProceedsFromShortTermInvestments to us-gaap_PaymentsForProceedsFromShortTermInvestments_lbl1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsOfFinancingCosts" xlink:label="PaymentsOfFinancingCosts" xlink:title="PaymentsOfFinancingCosts" />
    <link:label xlink:type="resource" xlink:label="us-gaap_PaymentsOfFinancingCosts_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="us-gaap_PaymentsOfFinancingCosts_lbl" xml:lang="en-US" id="us-gaap_PaymentsOfFinancingCosts_lbl">Payments for debt issuance costs</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsOfFinancingCosts" xlink:to="us-gaap_PaymentsOfFinancingCosts_lbl" xlink:title="label: PaymentsOfFinancingCosts to us-gaap_PaymentsOfFinancingCosts_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_PaymentsOfFinancingCosts_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_PaymentsOfFinancingCosts_lbl1" xml:lang="en-US" id="us-gaap_PaymentsOfFinancingCosts_lbl1">Payments of Financing Costs</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsOfFinancingCosts" xlink:to="us-gaap_PaymentsOfFinancingCosts_lbl1" xlink:title="label: PaymentsOfFinancingCosts to us-gaap_PaymentsOfFinancingCosts_lbl1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock" xlink:label="PaymentsForRepurchaseOfCommonStock" xlink:title="PaymentsForRepurchaseOfCommonStock" />
    <link:label xlink:type="resource" xlink:label="us-gaap_PaymentsForRepurchaseOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="us-gaap_PaymentsForRepurchaseOfCommonStock_lbl" xml:lang="en-US" id="us-gaap_PaymentsForRepurchaseOfCommonStock_lbl">Repurchase of common stock, including fees</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsForRepurchaseOfCommonStock" xlink:to="us-gaap_PaymentsForRepurchaseOfCommonStock_lbl" xlink:title="label: PaymentsForRepurchaseOfCommonStock to us-gaap_PaymentsForRepurchaseOfCommonStock_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_PaymentsForRepurchaseOfCommonStock_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_PaymentsForRepurchaseOfCommonStock_lbl1" xml:lang="en-US" id="us-gaap_PaymentsForRepurchaseOfCommonStock_lbl1">Payments for Repurchase of Common Stock</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsForRepurchaseOfCommonStock" xlink:to="us-gaap_PaymentsForRepurchaseOfCommonStock_lbl1" xlink:title="label: PaymentsForRepurchaseOfCommonStock to us-gaap_PaymentsForRepurchaseOfCommonStock_lbl1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired" xlink:label="PaymentsToAcquireBusinessesNetOfCashAcquired" xlink:title="PaymentsToAcquireBusinessesNetOfCashAcquired" />
    <link:label xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_lbl" xml:lang="en-US" id="us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_lbl">Purchase of business, net of cash acquired</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsToAcquireBusinessesNetOfCashAcquired" xlink:to="us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_lbl" xlink:title="label: PaymentsToAcquireBusinessesNetOfCashAcquired to us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_lbl1" xml:lang="en-US" id="us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_lbl1">Payments to Acquire Businesses, Net of Cash Acquired</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsToAcquireBusinessesNetOfCashAcquired" xlink:to="us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_lbl1" xlink:title="label: PaymentsToAcquireBusinessesNetOfCashAcquired to us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_lbl1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="PaymentsToAcquirePropertyPlantAndEquipment" xlink:title="PaymentsToAcquirePropertyPlantAndEquipment" />
    <link:label xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl" xml:lang="en-US" id="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl">Purchase of plant and equipment</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsToAcquirePropertyPlantAndEquipment" xlink:to="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl" xlink:title="label: PaymentsToAcquirePropertyPlantAndEquipment to us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl1" xml:lang="en-US" id="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl1">Payments to Acquire Property, Plant, and Equipment</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsToAcquirePropertyPlantAndEquipment" xlink:to="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl1" xlink:title="label: PaymentsToAcquirePropertyPlantAndEquipment to us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PreferredStockParOrStatedValuePerShare" xlink:label="PreferredStockParOrStatedValuePerShare" xlink:title="PreferredStockParOrStatedValuePerShare" />
    <link:label xlink:type="resource" xlink:label="us-gaap_PreferredStockParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_PreferredStockParOrStatedValuePerShare_lbl" xml:lang="en-US" id="us-gaap_PreferredStockParOrStatedValuePerShare_lbl">Preferred stock, par value (in dollars per share)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PreferredStockParOrStatedValuePerShare" xlink:to="us-gaap_PreferredStockParOrStatedValuePerShare_lbl" xlink:title="label: PreferredStockParOrStatedValuePerShare to us-gaap_PreferredStockParOrStatedValuePerShare_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PreferredStockValue" xlink:label="PreferredStockValue" xlink:title="PreferredStockValue" />
    <link:label xlink:type="resource" xlink:label="us-gaap_PreferredStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_PreferredStockValue_lbl" xml:lang="en-US" id="us-gaap_PreferredStockValue_lbl">Preferred stock</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PreferredStockValue" xlink:to="us-gaap_PreferredStockValue_lbl" xlink:title="label: PreferredStockValue to us-gaap_PreferredStockValue_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PreferredStockSharesIssued" xlink:label="PreferredStockSharesIssued" xlink:title="PreferredStockSharesIssued" />
    <link:label xlink:type="resource" xlink:label="us-gaap_PreferredStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_PreferredStockSharesIssued_lbl" xml:lang="en-US" id="us-gaap_PreferredStockSharesIssued_lbl">Preferred stock, issued (in shares)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PreferredStockSharesIssued" xlink:to="us-gaap_PreferredStockSharesIssued_lbl" xlink:title="label: PreferredStockSharesIssued to us-gaap_PreferredStockSharesIssued_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PreferredStockSharesAuthorized" xlink:label="PreferredStockSharesAuthorized" xlink:title="PreferredStockSharesAuthorized" />
    <link:label xlink:type="resource" xlink:label="us-gaap_PreferredStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_PreferredStockSharesAuthorized_lbl" xml:lang="en-US" id="us-gaap_PreferredStockSharesAuthorized_lbl">Preferred stock, authorized (in shares)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PreferredStockSharesAuthorized" xlink:to="us-gaap_PreferredStockSharesAuthorized_lbl" xlink:title="label: PreferredStockSharesAuthorized to us-gaap_PreferredStockSharesAuthorized_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrentAbstract" xlink:label="PrepaidExpenseAndOtherAssetsCurrentAbstract" xlink:title="PrepaidExpenseAndOtherAssetsCurrentAbstract" />
    <link:label xlink:type="resource" xlink:label="us-gaap_PrepaidExpenseAndOtherAssetsCurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_PrepaidExpenseAndOtherAssetsCurrentAbstract_lbl" xml:lang="en-US" id="us-gaap_PrepaidExpenseAndOtherAssetsCurrentAbstract_lbl">Prepaid expenses and other current assets [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PrepaidExpenseAndOtherAssetsCurrentAbstract" xlink:to="us-gaap_PrepaidExpenseAndOtherAssetsCurrentAbstract_lbl" xlink:title="label: PrepaidExpenseAndOtherAssetsCurrentAbstract to us-gaap_PrepaidExpenseAndOtherAssetsCurrentAbstract_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_PrepaidExpenseAndOtherAssetsCurrentAbstract_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_PrepaidExpenseAndOtherAssetsCurrentAbstract_lbl1" xml:lang="en-US" id="us-gaap_PrepaidExpenseAndOtherAssetsCurrentAbstract_lbl1">Prepaid Expense and Other Assets, Current [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PrepaidExpenseAndOtherAssetsCurrentAbstract" xlink:to="us-gaap_PrepaidExpenseAndOtherAssetsCurrentAbstract_lbl1" xlink:title="label: PrepaidExpenseAndOtherAssetsCurrentAbstract to us-gaap_PrepaidExpenseAndOtherAssetsCurrentAbstract_lbl1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:label="PrepaidExpenseAndOtherAssetsCurrent" xlink:title="PrepaidExpenseAndOtherAssetsCurrent" />
    <link:label xlink:type="resource" xlink:label="us-gaap_PrepaidExpenseAndOtherAssetsCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_PrepaidExpenseAndOtherAssetsCurrent_lbl" xml:lang="en-US" id="us-gaap_PrepaidExpenseAndOtherAssetsCurrent_lbl">Prepaid expenses and other current assets</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PrepaidExpenseAndOtherAssetsCurrent" xlink:to="us-gaap_PrepaidExpenseAndOtherAssetsCurrent_lbl" xlink:title="label: PrepaidExpenseAndOtherAssetsCurrent to us-gaap_PrepaidExpenseAndOtherAssetsCurrent_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromWarrantExercises" xlink:label="ProceedsFromWarrantExercises" xlink:title="ProceedsFromWarrantExercises" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ProceedsFromWarrantExercises_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_ProceedsFromWarrantExercises_lbl" xml:lang="en-US" id="us-gaap_ProceedsFromWarrantExercises_lbl">Settlement of warrant</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ProceedsFromWarrantExercises" xlink:to="us-gaap_ProceedsFromWarrantExercises_lbl" xlink:title="label: ProceedsFromWarrantExercises to us-gaap_ProceedsFromWarrantExercises_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ProceedsFromWarrantExercises_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_ProceedsFromWarrantExercises_lbl1" xml:lang="en-US" id="us-gaap_ProceedsFromWarrantExercises_lbl1">Proceeds from Warrant Exercises</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ProceedsFromWarrantExercises" xlink:to="us-gaap_ProceedsFromWarrantExercises_lbl1" xlink:title="label: ProceedsFromWarrantExercises to us-gaap_ProceedsFromWarrantExercises_lbl1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromLongTermLinesOfCredit" xlink:label="ProceedsFromLongTermLinesOfCredit" xlink:title="ProceedsFromLongTermLinesOfCredit" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ProceedsFromLongTermLinesOfCredit_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:title="us-gaap_ProceedsFromLongTermLinesOfCredit_lbl" xml:lang="en-US" id="us-gaap_ProceedsFromLongTermLinesOfCredit_lbl">Borrowings under revolving loan</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ProceedsFromLongTermLinesOfCredit" xlink:to="us-gaap_ProceedsFromLongTermLinesOfCredit_lbl" xlink:title="label: ProceedsFromLongTermLinesOfCredit to us-gaap_ProceedsFromLongTermLinesOfCredit_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ProceedsFromLongTermLinesOfCredit_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_ProceedsFromLongTermLinesOfCredit_lbl1" xml:lang="en-US" id="us-gaap_ProceedsFromLongTermLinesOfCredit_lbl1">Proceeds from Long-term Lines of Credit</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ProceedsFromLongTermLinesOfCredit" xlink:to="us-gaap_ProceedsFromLongTermLinesOfCredit_lbl1" xlink:title="label: ProceedsFromLongTermLinesOfCredit to us-gaap_ProceedsFromLongTermLinesOfCredit_lbl1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromStockOptionsExercised" xlink:label="ProceedsFromStockOptionsExercised" xlink:title="ProceedsFromStockOptionsExercised" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ProceedsFromStockOptionsExercised_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_ProceedsFromStockOptionsExercised_lbl" xml:lang="en-US" id="us-gaap_ProceedsFromStockOptionsExercised_lbl">Exercise of stock options</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ProceedsFromStockOptionsExercised" xlink:to="us-gaap_ProceedsFromStockOptionsExercised_lbl" xlink:title="label: ProceedsFromStockOptionsExercised to us-gaap_ProceedsFromStockOptionsExercised_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProductOrServiceAxis" xlink:label="ProductOrServiceAxis" xlink:title="ProductOrServiceAxis" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ProductOrServiceAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_ProductOrServiceAxis_lbl" xml:lang="en-US" id="us-gaap_ProductOrServiceAxis_lbl">Products and Services [Axis]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ProductOrServiceAxis" xlink:to="us-gaap_ProductOrServiceAxis_lbl" xlink:title="label: ProductOrServiceAxis to us-gaap_ProductOrServiceAxis_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="PropertyPlantAndEquipmentNet" xlink:title="PropertyPlantAndEquipmentNet" />
    <link:label xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_PropertyPlantAndEquipmentNet_lbl" xml:lang="en-US" id="us-gaap_PropertyPlantAndEquipmentNet_lbl">Plant and equipment - net</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PropertyPlantAndEquipmentNet" xlink:to="us-gaap_PropertyPlantAndEquipmentNet_lbl" xlink:title="label: PropertyPlantAndEquipmentNet to us-gaap_PropertyPlantAndEquipmentNet_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProvisionForDoubtfulAccounts" xlink:label="ProvisionForDoubtfulAccounts" xlink:title="ProvisionForDoubtfulAccounts" />
    <link:label xlink:type="resource" xlink:label="us-gaap_ProvisionForDoubtfulAccounts_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_ProvisionForDoubtfulAccounts_lbl" xml:lang="en-US" id="us-gaap_ProvisionForDoubtfulAccounts_lbl">Net provision for (recovery of) doubtful accounts</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ProvisionForDoubtfulAccounts" xlink:to="us-gaap_ProvisionForDoubtfulAccounts_lbl" xlink:title="label: ProvisionForDoubtfulAccounts to us-gaap_ProvisionForDoubtfulAccounts_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeMember" xlink:label="RangeMember" xlink:title="RangeMember" />
    <link:label xlink:type="resource" xlink:label="us-gaap_RangeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_RangeMember_lbl" xml:lang="en-US" id="us-gaap_RangeMember_lbl">Range [Domain]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RangeMember" xlink:to="us-gaap_RangeMember_lbl" xlink:title="label: RangeMember to us-gaap_RangeMember_lbl" />
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    <link:label xlink:type="resource" xlink:label="us-gaap_RangeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_RangeAxis_lbl" xml:lang="en-US" id="us-gaap_RangeAxis_lbl">Range [Axis]</link:label>
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    <link:label xlink:type="resource" xlink:label="us-gaap_RevolvingCreditFacilityMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_RevolvingCreditFacilityMember_lbl1" xml:lang="en-US" id="us-gaap_RevolvingCreditFacilityMember_lbl1">Revolving Credit Facility [Member]</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RisksAndUncertaintiesAbstract" xlink:label="RisksAndUncertaintiesAbstract" xlink:title="RisksAndUncertaintiesAbstract" />
    <link:label xlink:type="resource" xlink:label="us-gaap_RisksAndUncertaintiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_RisksAndUncertaintiesAbstract_lbl" xml:lang="en-US" id="us-gaap_RisksAndUncertaintiesAbstract_lbl">Significant Customer and Other Information [Abstract]</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfProductWarrantyLiabilityTableTextBlock" xlink:label="ScheduleOfProductWarrantyLiabilityTableTextBlock" xlink:title="ScheduleOfProductWarrantyLiabilityTableTextBlock" />
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    <link:label xlink:type="resource" xlink:label="us-gaap_StandardProductWarrantyAccrualWarrantiesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_StandardProductWarrantyAccrualWarrantiesIssued_lbl" xml:lang="en-US" id="us-gaap_StandardProductWarrantyAccrualWarrantiesIssued_lbl">Charged to expense/additions</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StandardProductWarrantyAccrualWarrantiesIssued" xlink:to="us-gaap_StandardProductWarrantyAccrualWarrantiesIssued_lbl" xlink:title="label: StandardProductWarrantyAccrualWarrantiesIssued to us-gaap_StandardProductWarrantyAccrualWarrantiesIssued_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StandardProductWarrantyDisclosureAbstract" xlink:label="StandardProductWarrantyDisclosureAbstract" xlink:title="StandardProductWarrantyDisclosureAbstract" />
    <link:label xlink:type="resource" xlink:label="us-gaap_StandardProductWarrantyDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_StandardProductWarrantyDisclosureAbstract_lbl" xml:lang="en-US" id="us-gaap_StandardProductWarrantyDisclosureAbstract_lbl">Warranty Returns [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StandardProductWarrantyDisclosureAbstract" xlink:to="us-gaap_StandardProductWarrantyDisclosureAbstract_lbl" xlink:title="label: StandardProductWarrantyDisclosureAbstract to us-gaap_StandardProductWarrantyDisclosureAbstract_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_StandardProductWarrantyDisclosureAbstract_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_StandardProductWarrantyDisclosureAbstract_lbl1" xml:lang="en-US" id="us-gaap_StandardProductWarrantyDisclosureAbstract_lbl1">Standard Product Warranty Disclosure [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StandardProductWarrantyDisclosureAbstract" xlink:to="us-gaap_StandardProductWarrantyDisclosureAbstract_lbl1" xlink:title="label: StandardProductWarrantyDisclosureAbstract to us-gaap_StandardProductWarrantyDisclosureAbstract_lbl1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StandardProductWarrantyAccrualPayments" xlink:label="StandardProductWarrantyAccrualPayments" xlink:title="StandardProductWarrantyAccrualPayments" />
    <link:label xlink:type="resource" xlink:label="us-gaap_StandardProductWarrantyAccrualPayments_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="us-gaap_StandardProductWarrantyAccrualPayments_lbl" xml:lang="en-US" id="us-gaap_StandardProductWarrantyAccrualPayments_lbl">Amounts processed</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StandardProductWarrantyAccrualPayments" xlink:to="us-gaap_StandardProductWarrantyAccrualPayments_lbl" xlink:title="label: StandardProductWarrantyAccrualPayments to us-gaap_StandardProductWarrantyAccrualPayments_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_StandardProductWarrantyAccrualPayments_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_StandardProductWarrantyAccrualPayments_lbl1" xml:lang="en-US" id="us-gaap_StandardProductWarrantyAccrualPayments_lbl1">Standard Product Warranty Accrual, Decrease for Payments</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StandardProductWarrantyAccrualPayments" xlink:to="us-gaap_StandardProductWarrantyAccrualPayments_lbl1" xlink:title="label: StandardProductWarrantyAccrualPayments to us-gaap_StandardProductWarrantyAccrualPayments_lbl1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StandardProductWarrantyAccrual" xlink:label="StandardProductWarrantyAccrual" xlink:title="StandardProductWarrantyAccrual" />
    <link:label xlink:type="resource" xlink:label="us-gaap_StandardProductWarrantyAccrual_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:title="us-gaap_StandardProductWarrantyAccrual_lbl" xml:lang="en-US" id="us-gaap_StandardProductWarrantyAccrual_lbl">Balance at end of period</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StandardProductWarrantyAccrual" xlink:to="us-gaap_StandardProductWarrantyAccrual_lbl" xlink:title="label: StandardProductWarrantyAccrual to us-gaap_StandardProductWarrantyAccrual_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_StandardProductWarrantyAccrual_lbl1" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:title="us-gaap_StandardProductWarrantyAccrual_lbl1" xml:lang="en-US" id="us-gaap_StandardProductWarrantyAccrual_lbl1">Balance at beginning of period</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StandardProductWarrantyAccrual" xlink:to="us-gaap_StandardProductWarrantyAccrual_lbl1" xlink:title="label: StandardProductWarrantyAccrual to us-gaap_StandardProductWarrantyAccrual_lbl1" />
    <link:label xlink:type="resource" xlink:label="us-gaap_StandardProductWarrantyAccrual_lbl2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_StandardProductWarrantyAccrual_lbl2" xml:lang="en-US" id="us-gaap_StandardProductWarrantyAccrual_lbl2">Standard Product Warranty Accrual</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StandardProductWarrantyAccrual" xlink:to="us-gaap_StandardProductWarrantyAccrual_lbl2" xlink:title="label: StandardProductWarrantyAccrual to us-gaap_StandardProductWarrantyAccrual_lbl2" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StandbyLettersOfCreditMember" xlink:label="StandbyLettersOfCreditMember" xlink:title="StandbyLettersOfCreditMember" />
    <link:label xlink:type="resource" xlink:label="us-gaap_StandbyLettersOfCreditMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_StandbyLettersOfCreditMember_lbl" xml:lang="en-US" id="us-gaap_StandbyLettersOfCreditMember_lbl">Standby Letters of Credit [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StandbyLettersOfCreditMember" xlink:to="us-gaap_StandbyLettersOfCreditMember_lbl" xlink:title="label: StandbyLettersOfCreditMember to us-gaap_StandbyLettersOfCreditMember_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="StatementClassOfStockAxis" xlink:title="StatementClassOfStockAxis" />
    <link:label xlink:type="resource" xlink:label="us-gaap_StatementClassOfStockAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_StatementClassOfStockAxis_lbl" xml:lang="en-US" id="us-gaap_StatementClassOfStockAxis_lbl">Class of Stock [Axis]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StatementClassOfStockAxis" xlink:to="us-gaap_StatementClassOfStockAxis_lbl" xlink:title="label: StatementClassOfStockAxis to us-gaap_StatementClassOfStockAxis_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementLineItems" xlink:label="StatementLineItems" xlink:title="StatementLineItems" />
    <link:label xlink:type="resource" xlink:label="us-gaap_StatementLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_StatementLineItems_lbl" xml:lang="en-US" id="us-gaap_StatementLineItems_lbl">Statement [Line Items]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StatementLineItems" xlink:to="us-gaap_StatementLineItems_lbl" xlink:title="label: StatementLineItems to us-gaap_StatementLineItems_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementOfCashFlowsAbstract" xlink:label="StatementOfCashFlowsAbstract" xlink:title="StatementOfCashFlowsAbstract" />
    <link:label xlink:type="resource" xlink:label="us-gaap_StatementOfCashFlowsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_StatementOfCashFlowsAbstract_lbl" xml:lang="en-US" id="us-gaap_StatementOfCashFlowsAbstract_lbl">Consolidated Statements of Cash Flows (Unaudited) [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StatementOfCashFlowsAbstract" xlink:to="us-gaap_StatementOfCashFlowsAbstract_lbl" xlink:title="label: StatementOfCashFlowsAbstract to us-gaap_StatementOfCashFlowsAbstract_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract" xlink:label="StatementOfIncomeAndComprehensiveIncomeAbstract" xlink:title="StatementOfIncomeAndComprehensiveIncomeAbstract" />
    <link:label xlink:type="resource" xlink:label="us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_lbl" xml:lang="en-US" id="us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_lbl">Consolidated Statements of Comprehensive (Loss) Income (Unaudited) [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StatementOfIncomeAndComprehensiveIncomeAbstract" xlink:to="us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_lbl" xlink:title="label: StatementOfIncomeAndComprehensiveIncomeAbstract to us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract" xlink:label="StatementOfFinancialPositionAbstract" xlink:title="StatementOfFinancialPositionAbstract" />
    <link:label xlink:type="resource" xlink:label="us-gaap_StatementOfFinancialPositionAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_StatementOfFinancialPositionAbstract_lbl" xml:lang="en-US" id="us-gaap_StatementOfFinancialPositionAbstract_lbl">Consolidated Balance Sheets (Unaudited) [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StatementOfFinancialPositionAbstract" xlink:to="us-gaap_StatementOfFinancialPositionAbstract_lbl" xlink:title="label: StatementOfFinancialPositionAbstract to us-gaap_StatementOfFinancialPositionAbstract_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="StatementScenarioAxis" xlink:title="StatementScenarioAxis" />
    <link:label xlink:type="resource" xlink:label="us-gaap_StatementScenarioAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_StatementScenarioAxis_lbl" xml:lang="en-US" id="us-gaap_StatementScenarioAxis_lbl">Scenario [Axis]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StatementScenarioAxis" xlink:to="us-gaap_StatementScenarioAxis_lbl" xlink:title="label: StatementScenarioAxis to us-gaap_StatementScenarioAxis_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementTable" xlink:label="StatementTable" xlink:title="StatementTable" />
    <link:label xlink:type="resource" xlink:label="us-gaap_StatementTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_StatementTable_lbl" xml:lang="en-US" id="us-gaap_StatementTable_lbl">Statement [Table]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StatementTable" xlink:to="us-gaap_StatementTable_lbl" xlink:title="label: StatementTable to us-gaap_StatementTable_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="StatementEquityComponentsAxis" xlink:title="StatementEquityComponentsAxis" />
    <link:label xlink:type="resource" xlink:label="us-gaap_StatementEquityComponentsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_StatementEquityComponentsAxis_lbl" xml:lang="en-US" id="us-gaap_StatementEquityComponentsAxis_lbl">Equity Components [Axis]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StatementEquityComponentsAxis" xlink:to="us-gaap_StatementEquityComponentsAxis_lbl" xlink:title="label: StatementEquityComponentsAxis to us-gaap_StatementEquityComponentsAxis_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:label="StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:title="StockIssuedDuringPeriodSharesStockOptionsExercised" />
    <link:label xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_lbl" xml:lang="en-US" id="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_lbl">Exercised (in shares)</link:label>
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    <link:label xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_lbl1" xml:lang="en-US" id="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_lbl1">Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:to="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_lbl1" xlink:title="label: StockIssuedDuringPeriodSharesStockOptionsExercised to us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_lbl1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1" xlink:label="StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1" xlink:title="StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1" />
    <link:label xlink:type="resource" xlink:label="us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1_lbl" xml:lang="en-US" id="us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1_lbl">Shares available for repurchase, amount</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1" xlink:to="us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1_lbl" xlink:title="label: StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1 to us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1_lbl1" xml:lang="en-US" id="us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1_lbl1">Stock Repurchase Program, Remaining Authorized Repurchase Amount</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1" xlink:to="us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1_lbl1" xlink:title="label: StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1 to us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1_lbl1" />
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    <link:label xlink:type="resource" xlink:label="us-gaap_StockRepurchaseProgramAuthorizedAmount1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="us-gaap_StockRepurchaseProgramAuthorizedAmount1_lbl" xml:lang="en-US" id="us-gaap_StockRepurchaseProgramAuthorizedAmount1_lbl">Stock repurchase program, approved amount</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockRepurchaseProgramAuthorizedAmount1" xlink:to="us-gaap_StockRepurchaseProgramAuthorizedAmount1_lbl" xlink:title="label: StockRepurchaseProgramAuthorizedAmount1 to us-gaap_StockRepurchaseProgramAuthorizedAmount1_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_StockRepurchaseProgramAuthorizedAmount1_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_StockRepurchaseProgramAuthorizedAmount1_lbl1" xml:lang="en-US" id="us-gaap_StockRepurchaseProgramAuthorizedAmount1_lbl1">Stock Repurchase Program, Authorized Amount</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockRepurchaseProgramAuthorizedAmount1" xlink:to="us-gaap_StockRepurchaseProgramAuthorizedAmount1_lbl1" xlink:title="label: StockRepurchaseProgramAuthorizedAmount1 to us-gaap_StockRepurchaseProgramAuthorizedAmount1_lbl1" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="StockholdersEquity" xlink:title="StockholdersEquity" />
    <link:label xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="us-gaap_StockholdersEquity_lbl" xml:lang="en-US" id="us-gaap_StockholdersEquity_lbl">Total shareholders' equity</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockholdersEquity" xlink:to="us-gaap_StockholdersEquity_lbl" xlink:title="label: StockholdersEquity to us-gaap_StockholdersEquity_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl1" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:title="us-gaap_StockholdersEquity_lbl1" xml:lang="en-US" id="us-gaap_StockholdersEquity_lbl1">Balance at beginning of period</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockholdersEquity" xlink:to="us-gaap_StockholdersEquity_lbl1" xlink:title="label: StockholdersEquity to us-gaap_StockholdersEquity_lbl1" />
    <link:label xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl2" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:title="us-gaap_StockholdersEquity_lbl2" xml:lang="en-US" id="us-gaap_StockholdersEquity_lbl2">Balance at end of period</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockholdersEquity" xlink:to="us-gaap_StockholdersEquity_lbl2" xlink:title="label: StockholdersEquity to us-gaap_StockholdersEquity_lbl2" />
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockholdersEquity" xlink:to="us-gaap_StockholdersEquity_lbl3" xlink:title="label: StockholdersEquity to us-gaap_StockholdersEquity_lbl3" />
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    <link:label xlink:type="resource" xlink:label="us-gaap_SubsequentEventTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_SubsequentEventTable_lbl" xml:lang="en-US" id="us-gaap_SubsequentEventTable_lbl">Subsequent Event [Table]</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventMember" xlink:label="SubsequentEventMember" xlink:title="SubsequentEventMember" />
    <link:label xlink:type="resource" xlink:label="us-gaap_SubsequentEventMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_SubsequentEventMember_lbl" xml:lang="en-US" id="us-gaap_SubsequentEventMember_lbl">Subsequent Event [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SubsequentEventMember" xlink:to="us-gaap_SubsequentEventMember_lbl" xlink:title="label: SubsequentEventMember to us-gaap_SubsequentEventMember_lbl" />
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TrademarksMember" xlink:label="TrademarksMember" xlink:title="TrademarksMember" />
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TreasuryStockTextBlock" xlink:label="TreasuryStockTextBlock" xlink:title="TreasuryStockTextBlock" />
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    <link:label xlink:type="resource" xlink:label="us-gaap_UnamortizedDebtIssuanceExpense_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="us-gaap_UnamortizedDebtIssuanceExpense_lbl" xml:lang="en-US" id="us-gaap_UnamortizedDebtIssuanceExpense_lbl">Unamortized financing fees</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="UnamortizedDebtIssuanceExpense" xlink:to="us-gaap_UnamortizedDebtIssuanceExpense_lbl" xlink:title="label: UnamortizedDebtIssuanceExpense to us-gaap_UnamortizedDebtIssuanceExpense_lbl" />
    <link:label xlink:type="resource" xlink:label="us-gaap_UnamortizedDebtIssuanceExpense_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_UnamortizedDebtIssuanceExpense_lbl1" xml:lang="en-US" id="us-gaap_UnamortizedDebtIssuanceExpense_lbl1">Unamortized Debt Issuance Expense</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="UnamortizedDebtIssuanceExpense" xlink:to="us-gaap_UnamortizedDebtIssuanceExpense_lbl1" xlink:title="label: UnamortizedDebtIssuanceExpense to us-gaap_UnamortizedDebtIssuanceExpense_lbl1" />
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    <link:label xlink:type="resource" xlink:label="us-gaap_VariableRateDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_VariableRateDomain_lbl" xml:lang="en-US" id="us-gaap_VariableRateDomain_lbl">Variable Rate [Domain]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="VariableRateDomain" xlink:to="us-gaap_VariableRateDomain_lbl" xlink:title="label: VariableRateDomain to us-gaap_VariableRateDomain_lbl" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_VariableRateAxis" xlink:label="VariableRateAxis" xlink:title="VariableRateAxis" />
    <link:label xlink:type="resource" xlink:label="us-gaap_VariableRateAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="us-gaap_VariableRateAxis_lbl" xml:lang="en-US" id="us-gaap_VariableRateAxis_lbl">Variable Rate [Axis]</link:label>
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    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_TaxCutsAndJobsActOf2017IncompleteAccountingProvisionalIncomeTaxExpenseBenefit" xlink:label="TaxCutsAndJobsActOf2017IncompleteAccountingProvisionalIncomeTaxExpenseBenefit" xlink:title="TaxCutsAndJobsActOf2017IncompleteAccountingProvisionalIncomeTaxExpenseBenefit" />
    <link:label xlink:type="resource" xlink:label="mpaa_TaxCutsAndJobsActOf2017IncompleteAccountingProvisionalIncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_TaxCutsAndJobsActOf2017IncompleteAccountingProvisionalIncomeTaxExpenseBenefit_lbl" xml:lang="en-US" id="mpaa_TaxCutsAndJobsActOf2017IncompleteAccountingProvisionalIncomeTaxExpenseBenefit_lbl">Amount of reasonable estimate for income tax expense (benefit) from effect of Tax Cuts and Jobs Act of 2017 for which accounting for tax effect is incomplete.</link:label>
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    <link:label xlink:type="resource" xlink:label="mpaa_TaxCutsAndJobsActOf2017IncompleteAccountingProvisionalIncomeTaxExpenseBenefit_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="mpaa_TaxCutsAndJobsActOf2017IncompleteAccountingProvisionalIncomeTaxExpenseBenefit_lbl2" xml:lang="en-US" id="mpaa_TaxCutsAndJobsActOf2017IncompleteAccountingProvisionalIncomeTaxExpenseBenefit_lbl2">One time unfavorable impact related to tax legislation</link:label>
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    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_IncomeTaxDisclosureTable" xlink:label="IncomeTaxDisclosureTable" xlink:title="IncomeTaxDisclosureTable" />
    <link:label xlink:type="resource" xlink:label="mpaa_IncomeTaxDisclosureTable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_IncomeTaxDisclosureTable_lbl" xml:lang="en-US" id="mpaa_IncomeTaxDisclosureTable_lbl">Disclosures detailing information about the entity's income taxes.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IncomeTaxDisclosureTable" xlink:to="mpaa_IncomeTaxDisclosureTable_lbl" xlink:title="label: IncomeTaxDisclosureTable to mpaa_IncomeTaxDisclosureTable_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_IncomeTaxDisclosureTable_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_IncomeTaxDisclosureTable_lbl1" xml:lang="en-US" id="mpaa_IncomeTaxDisclosureTable_lbl1">Income Tax Disclosure [Table]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IncomeTaxDisclosureTable" xlink:to="mpaa_IncomeTaxDisclosureTable_lbl1" xlink:title="label: IncomeTaxDisclosureTable to mpaa_IncomeTaxDisclosureTable_lbl1" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_IncomeTaxDisclosureLineItems" xlink:label="IncomeTaxDisclosureLineItems" xlink:title="IncomeTaxDisclosureLineItems" />
    <link:label xlink:type="resource" xlink:label="mpaa_IncomeTaxDisclosureLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_IncomeTaxDisclosureLineItems_lbl" xml:lang="en-US" id="mpaa_IncomeTaxDisclosureLineItems_lbl">Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</link:label>
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    <link:label xlink:type="resource" xlink:label="mpaa_IncomeTaxDisclosureLineItems_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_IncomeTaxDisclosureLineItems_lbl1" xml:lang="en-US" id="mpaa_IncomeTaxDisclosureLineItems_lbl1">Income Tax Disclosure [Line Items]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IncomeTaxDisclosureLineItems" xlink:to="mpaa_IncomeTaxDisclosureLineItems_lbl1" xlink:title="label: IncomeTaxDisclosureLineItems to mpaa_IncomeTaxDisclosureLineItems_lbl1" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_AccountsReceivableDiscountProgramsAbstract" xlink:label="AccountsReceivableDiscountProgramsAbstract" xlink:title="AccountsReceivableDiscountProgramsAbstract" />
    <link:label xlink:type="resource" xlink:label="mpaa_AccountsReceivableDiscountProgramsAbstract_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_AccountsReceivableDiscountProgramsAbstract_lbl1" xml:lang="en-US" id="mpaa_AccountsReceivableDiscountProgramsAbstract_lbl1">Accounts Receivable Discount Programs [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AccountsReceivableDiscountProgramsAbstract" xlink:to="mpaa_AccountsReceivableDiscountProgramsAbstract_lbl1" xlink:title="label: AccountsReceivableDiscountProgramsAbstract to mpaa_AccountsReceivableDiscountProgramsAbstract_lbl1" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_AccountsReceivableDiscountProgramsTextBlock" xlink:label="AccountsReceivableDiscountProgramsTextBlock" xlink:title="AccountsReceivableDiscountProgramsTextBlock" />
    <link:label xlink:type="resource" xlink:label="mpaa_AccountsReceivableDiscountProgramsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_AccountsReceivableDiscountProgramsTextBlock_lbl" xml:lang="en-US" id="mpaa_AccountsReceivableDiscountProgramsTextBlock_lbl">Describes the nature of the entity's non-recourse receivable discount programs with its customers and their respective banks.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AccountsReceivableDiscountProgramsTextBlock" xlink:to="mpaa_AccountsReceivableDiscountProgramsTextBlock_lbl" xlink:title="label: AccountsReceivableDiscountProgramsTextBlock to mpaa_AccountsReceivableDiscountProgramsTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_AccountsReceivableDiscountProgramsTextBlock_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_AccountsReceivableDiscountProgramsTextBlock_lbl1" xml:lang="en-US" id="mpaa_AccountsReceivableDiscountProgramsTextBlock_lbl1">Accounts Receivable Discount Programs [Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AccountsReceivableDiscountProgramsTextBlock" xlink:to="mpaa_AccountsReceivableDiscountProgramsTextBlock_lbl1" xlink:title="label: AccountsReceivableDiscountProgramsTextBlock to mpaa_AccountsReceivableDiscountProgramsTextBlock_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_AccountsReceivableDiscountProgramsTextBlock_lbl2" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:title="mpaa_AccountsReceivableDiscountProgramsTextBlock_lbl2" xml:lang="en-US" id="mpaa_AccountsReceivableDiscountProgramsTextBlock_lbl2">Accounts Receivable Discount Programs</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AccountsReceivableDiscountProgramsTextBlock" xlink:to="mpaa_AccountsReceivableDiscountProgramsTextBlock_lbl2" xlink:title="label: AccountsReceivableDiscountProgramsTextBlock to mpaa_AccountsReceivableDiscountProgramsTextBlock_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_ScheduleOfAccountsReceivableDiscountProgramsTableTextBlock" xlink:label="ScheduleOfAccountsReceivableDiscountProgramsTableTextBlock" xlink:title="ScheduleOfAccountsReceivableDiscountProgramsTableTextBlock" />
    <link:label xlink:type="resource" xlink:label="mpaa_ScheduleOfAccountsReceivableDiscountProgramsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_ScheduleOfAccountsReceivableDiscountProgramsTableTextBlock_lbl" xml:lang="en-US" id="mpaa_ScheduleOfAccountsReceivableDiscountProgramsTableTextBlock_lbl">Tabular disclosure of accounts receivable factored out to banks. Disclosure includes amounts factored, weighted average days, weighted average discount rate and amount of discount.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ScheduleOfAccountsReceivableDiscountProgramsTableTextBlock" xlink:to="mpaa_ScheduleOfAccountsReceivableDiscountProgramsTableTextBlock_lbl" xlink:title="label: ScheduleOfAccountsReceivableDiscountProgramsTableTextBlock to mpaa_ScheduleOfAccountsReceivableDiscountProgramsTableTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_ScheduleOfAccountsReceivableDiscountProgramsTableTextBlock_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_ScheduleOfAccountsReceivableDiscountProgramsTableTextBlock_lbl1" xml:lang="en-US" id="mpaa_ScheduleOfAccountsReceivableDiscountProgramsTableTextBlock_lbl1">Schedule of Accounts Receivable Discount Programs [Table Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ScheduleOfAccountsReceivableDiscountProgramsTableTextBlock" xlink:to="mpaa_ScheduleOfAccountsReceivableDiscountProgramsTableTextBlock_lbl1" xlink:title="label: ScheduleOfAccountsReceivableDiscountProgramsTableTextBlock to mpaa_ScheduleOfAccountsReceivableDiscountProgramsTableTextBlock_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_ScheduleOfAccountsReceivableDiscountProgramsTableTextBlock_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="mpaa_ScheduleOfAccountsReceivableDiscountProgramsTableTextBlock_lbl2" xml:lang="en-US" id="mpaa_ScheduleOfAccountsReceivableDiscountProgramsTableTextBlock_lbl2">Schedule of accounts receivable discount programs</link:label>
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    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_InterestExpense-Net" xlink:label="InterestExpense-Net" xlink:title="InterestExpense-Net" />
    <link:label xlink:type="resource" xlink:label="mpaa_InterestExpense-Net_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_InterestExpense-Net_lbl" xml:lang="en-US" id="mpaa_InterestExpense-Net_lbl">The cost of borrowed funds and interest related to the receivables discount programs that have been accounted for as interest expense and charged against earnings during the period.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InterestExpense-Net" xlink:to="mpaa_InterestExpense-Net_lbl" xlink:title="label: InterestExpense-Net to mpaa_InterestExpense-Net_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_InterestExpense-Net_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_InterestExpense-Net_lbl1" xml:lang="en-US" id="mpaa_InterestExpense-Net_lbl1">Interest Expense-Net</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InterestExpense-Net" xlink:to="mpaa_InterestExpense-Net_lbl1" xlink:title="label: InterestExpense-Net to mpaa_InterestExpense-Net_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_InterestExpense-Net_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="mpaa_InterestExpense-Net_lbl2" xml:lang="en-US" id="mpaa_InterestExpense-Net_lbl2">Interest expense, net</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InterestExpense-Net" xlink:to="mpaa_InterestExpense-Net_lbl2" xlink:title="label: InterestExpense-Net to mpaa_InterestExpense-Net_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_AccruedCorePaymentCurrent" xlink:label="AccruedCorePaymentCurrent" xlink:title="AccruedCorePaymentCurrent" />
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    <link:label xlink:type="resource" xlink:label="mpaa_AccruedCorePaymentCurrent_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_AccruedCorePaymentCurrent_lbl1" xml:lang="en-US" id="mpaa_AccruedCorePaymentCurrent_lbl1">Accrued core payment Current</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AccruedCorePaymentCurrent" xlink:to="mpaa_AccruedCorePaymentCurrent_lbl1" xlink:title="label: AccruedCorePaymentCurrent to mpaa_AccruedCorePaymentCurrent_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_AccruedCorePaymentCurrent_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="mpaa_AccruedCorePaymentCurrent_lbl2" xml:lang="en-US" id="mpaa_AccruedCorePaymentCurrent_lbl2">Accrued core payment</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AccruedCorePaymentCurrent" xlink:to="mpaa_AccruedCorePaymentCurrent_lbl2" xlink:title="label: AccruedCorePaymentCurrent to mpaa_AccruedCorePaymentCurrent_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_NetInventory" xlink:label="NetInventory" xlink:title="NetInventory" />
    <link:label xlink:type="resource" xlink:label="mpaa_NetInventory_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_NetInventory_lbl" xml:lang="en-US" id="mpaa_NetInventory_lbl">Carrying amount (lower of cost or net realizable value) as of the balance sheet date of (1) non-core raw materials, (2) the non-core value of work in process, and (3) the non-core value of finished goods, less all valuation and other allowances. Excludes noncurrent inventory balances for (1) used cores, (2) the used core value of work in process, and (3) the remanufactured core portion of finished goods.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NetInventory" xlink:to="mpaa_NetInventory_lbl" xlink:title="label: NetInventory to mpaa_NetInventory_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_NetInventory_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_NetInventory_lbl1" xml:lang="en-US" id="mpaa_NetInventory_lbl1">Net Inventory</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NetInventory" xlink:to="mpaa_NetInventory_lbl1" xlink:title="label: NetInventory to mpaa_NetInventory_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_NetInventory_lbl2" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:title="mpaa_NetInventory_lbl2" xml:lang="en-US" id="mpaa_NetInventory_lbl2">Inventory - net</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NetInventory" xlink:to="mpaa_NetInventory_lbl2" xlink:title="label: NetInventory to mpaa_NetInventory_lbl2" />
    <link:label xlink:type="resource" xlink:label="mpaa_NetInventory_lbl3" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="mpaa_NetInventory_lbl3" xml:lang="en-US" id="mpaa_NetInventory_lbl3">Total</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NetInventory" xlink:to="mpaa_NetInventory_lbl3" xlink:title="label: NetInventory to mpaa_NetInventory_lbl3" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_InventoryUnreturned" xlink:label="InventoryUnreturned" xlink:title="InventoryUnreturned" />
    <link:label xlink:type="resource" xlink:label="mpaa_InventoryUnreturned_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_InventoryUnreturned_lbl" xml:lang="en-US" id="mpaa_InventoryUnreturned_lbl">Carrying amount as of the balance sheet date of the added unit value of finished goods shipped to customers that the entity expects to be returned within the normal operating cycle of one year.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InventoryUnreturned" xlink:to="mpaa_InventoryUnreturned_lbl" xlink:title="label: InventoryUnreturned to mpaa_InventoryUnreturned_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_InventoryUnreturned_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_InventoryUnreturned_lbl1" xml:lang="en-US" id="mpaa_InventoryUnreturned_lbl1">Inventory unreturned</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InventoryUnreturned" xlink:to="mpaa_InventoryUnreturned_lbl1" xlink:title="label: InventoryUnreturned to mpaa_InventoryUnreturned_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_InventoryUnreturned_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="mpaa_InventoryUnreturned_lbl2" xml:lang="en-US" id="mpaa_InventoryUnreturned_lbl2">Inventory unreturned</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InventoryUnreturned" xlink:to="mpaa_InventoryUnreturned_lbl2" xlink:title="label: InventoryUnreturned to mpaa_InventoryUnreturned_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_CustomerFinishedGoodsReturnsAccrual" xlink:label="CustomerFinishedGoodsReturnsAccrual" xlink:title="CustomerFinishedGoodsReturnsAccrual" />
    <link:label xlink:type="resource" xlink:label="mpaa_CustomerFinishedGoodsReturnsAccrual_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_CustomerFinishedGoodsReturnsAccrual_lbl" xml:lang="en-US" id="mpaa_CustomerFinishedGoodsReturnsAccrual_lbl">The carrying value as of the balance sheet date of the estimated future unit returns (warranty returns) and finished goods returns (stock adjustment returns) for which a company authorization has not been issued.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CustomerFinishedGoodsReturnsAccrual" xlink:to="mpaa_CustomerFinishedGoodsReturnsAccrual_lbl" xlink:title="label: CustomerFinishedGoodsReturnsAccrual to mpaa_CustomerFinishedGoodsReturnsAccrual_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_CustomerFinishedGoodsReturnsAccrual_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_CustomerFinishedGoodsReturnsAccrual_lbl1" xml:lang="en-US" id="mpaa_CustomerFinishedGoodsReturnsAccrual_lbl1">Customer finished goods returns accrual</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CustomerFinishedGoodsReturnsAccrual" xlink:to="mpaa_CustomerFinishedGoodsReturnsAccrual_lbl1" xlink:title="label: CustomerFinishedGoodsReturnsAccrual to mpaa_CustomerFinishedGoodsReturnsAccrual_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_CustomerFinishedGoodsReturnsAccrual_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="mpaa_CustomerFinishedGoodsReturnsAccrual_lbl2" xml:lang="en-US" id="mpaa_CustomerFinishedGoodsReturnsAccrual_lbl2">Customer finished goods returns accrual</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CustomerFinishedGoodsReturnsAccrual" xlink:to="mpaa_CustomerFinishedGoodsReturnsAccrual_lbl2" xlink:title="label: CustomerFinishedGoodsReturnsAccrual to mpaa_CustomerFinishedGoodsReturnsAccrual_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_LongTermCoreInventoryNet" xlink:label="LongTermCoreInventoryNet" xlink:title="LongTermCoreInventoryNet" />
    <link:label xlink:type="resource" xlink:label="mpaa_LongTermCoreInventoryNet_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_LongTermCoreInventoryNet_lbl" xml:lang="en-US" id="mpaa_LongTermCoreInventoryNet_lbl">Carrying amount (lower of cost or net realizable value) as of the balance sheet date of (1) used cores held in inventory at Company facilities, (2) used cores expected to be returned by the Company's customers, (3) remanufactured cores held in finished goods at Company facilities, and (4) remanufactured cores held at customers locations, less all valuation and other allowances.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LongTermCoreInventoryNet" xlink:to="mpaa_LongTermCoreInventoryNet_lbl" xlink:title="label: LongTermCoreInventoryNet to mpaa_LongTermCoreInventoryNet_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_LongTermCoreInventoryNet_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_LongTermCoreInventoryNet_lbl1" xml:lang="en-US" id="mpaa_LongTermCoreInventoryNet_lbl1">Long-term core inventory net</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LongTermCoreInventoryNet" xlink:to="mpaa_LongTermCoreInventoryNet_lbl1" xlink:title="label: LongTermCoreInventoryNet to mpaa_LongTermCoreInventoryNet_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_LongTermCoreInventoryNet_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="mpaa_LongTermCoreInventoryNet_lbl2" xml:lang="en-US" id="mpaa_LongTermCoreInventoryNet_lbl2">Long-term core inventory - net</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LongTermCoreInventoryNet" xlink:to="mpaa_LongTermCoreInventoryNet_lbl2" xlink:title="label: LongTermCoreInventoryNet to mpaa_LongTermCoreInventoryNet_lbl2" />
    <link:label xlink:type="resource" xlink:label="mpaa_LongTermCoreInventoryNet_lbl3" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="mpaa_LongTermCoreInventoryNet_lbl3" xml:lang="en-US" id="mpaa_LongTermCoreInventoryNet_lbl3">Total</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LongTermCoreInventoryNet" xlink:to="mpaa_LongTermCoreInventoryNet_lbl3" xlink:title="label: LongTermCoreInventoryNet to mpaa_LongTermCoreInventoryNet_lbl3" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_LongtermCoreInventoryDeposit" xlink:label="LongtermCoreInventoryDeposit" xlink:title="LongtermCoreInventoryDeposit" />
    <link:label xlink:type="resource" xlink:label="mpaa_LongtermCoreInventoryDeposit_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_LongtermCoreInventoryDeposit_lbl" xml:lang="en-US" id="mpaa_LongtermCoreInventoryDeposit_lbl">Carrying amount (lower of cost or net realizable value) of remanufactured cores the Company has purchased from its customers, which are held by the customers and remain on the customers' premises.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LongtermCoreInventoryDeposit" xlink:to="mpaa_LongtermCoreInventoryDeposit_lbl" xlink:title="label: LongtermCoreInventoryDeposit to mpaa_LongtermCoreInventoryDeposit_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_LongtermCoreInventoryDeposit_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_LongtermCoreInventoryDeposit_lbl1" xml:lang="en-US" id="mpaa_LongtermCoreInventoryDeposit_lbl1">Long-term core inventory deposits</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LongtermCoreInventoryDeposit" xlink:to="mpaa_LongtermCoreInventoryDeposit_lbl1" xlink:title="label: LongtermCoreInventoryDeposit to mpaa_LongtermCoreInventoryDeposit_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_LongtermCoreInventoryDeposit_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="mpaa_LongtermCoreInventoryDeposit_lbl2" xml:lang="en-US" id="mpaa_LongtermCoreInventoryDeposit_lbl2">Long-term core inventory deposits</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LongtermCoreInventoryDeposit" xlink:to="mpaa_LongtermCoreInventoryDeposit_lbl2" xlink:title="label: LongtermCoreInventoryDeposit to mpaa_LongtermCoreInventoryDeposit_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_AccruedCorePaymentNoncurrent" xlink:label="AccruedCorePaymentNoncurrent" xlink:title="AccruedCorePaymentNoncurrent" />
    <link:label xlink:type="resource" xlink:label="mpaa_AccruedCorePaymentNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_AccruedCorePaymentNoncurrent_lbl" xml:lang="en-US" id="mpaa_AccruedCorePaymentNoncurrent_lbl">Carrying value as of the balance sheet date of obligations of accrued core payments, excluding amounts to be repaid within one year or normal operating cycle, if longer (current maturities).</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AccruedCorePaymentNoncurrent" xlink:to="mpaa_AccruedCorePaymentNoncurrent_lbl" xlink:title="label: AccruedCorePaymentNoncurrent to mpaa_AccruedCorePaymentNoncurrent_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_AccruedCorePaymentNoncurrent_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_AccruedCorePaymentNoncurrent_lbl1" xml:lang="en-US" id="mpaa_AccruedCorePaymentNoncurrent_lbl1">Accrued Core Payment Noncurrent</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AccruedCorePaymentNoncurrent" xlink:to="mpaa_AccruedCorePaymentNoncurrent_lbl1" xlink:title="label: AccruedCorePaymentNoncurrent to mpaa_AccruedCorePaymentNoncurrent_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_AccruedCorePaymentNoncurrent_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="mpaa_AccruedCorePaymentNoncurrent_lbl2" xml:lang="en-US" id="mpaa_AccruedCorePaymentNoncurrent_lbl2">Long-term accrued core payment</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AccruedCorePaymentNoncurrent" xlink:to="mpaa_AccruedCorePaymentNoncurrent_lbl2" xlink:title="label: AccruedCorePaymentNoncurrent to mpaa_AccruedCorePaymentNoncurrent_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_BasisOfPresentationAbstract" xlink:label="BasisOfPresentationAbstract" xlink:title="BasisOfPresentationAbstract" />
    <link:label xlink:type="resource" xlink:label="mpaa_BasisOfPresentationAbstract_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_BasisOfPresentationAbstract_lbl1" xml:lang="en-US" id="mpaa_BasisOfPresentationAbstract_lbl1">Basis of Presentation [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="BasisOfPresentationAbstract" xlink:to="mpaa_BasisOfPresentationAbstract_lbl1" xlink:title="label: BasisOfPresentationAbstract to mpaa_BasisOfPresentationAbstract_lbl1" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_IncreaseDecreaseInAccruedCorePayment" xlink:label="IncreaseDecreaseInAccruedCorePayment" xlink:title="IncreaseDecreaseInAccruedCorePayment" />
    <link:label xlink:type="resource" xlink:label="mpaa_IncreaseDecreaseInAccruedCorePayment_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_IncreaseDecreaseInAccruedCorePayment_lbl" xml:lang="en-US" id="mpaa_IncreaseDecreaseInAccruedCorePayment_lbl">The increase (decrease) during the reporting period in accrued core payments.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IncreaseDecreaseInAccruedCorePayment" xlink:to="mpaa_IncreaseDecreaseInAccruedCorePayment_lbl" xlink:title="label: IncreaseDecreaseInAccruedCorePayment to mpaa_IncreaseDecreaseInAccruedCorePayment_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_IncreaseDecreaseInAccruedCorePayment_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_IncreaseDecreaseInAccruedCorePayment_lbl1" xml:lang="en-US" id="mpaa_IncreaseDecreaseInAccruedCorePayment_lbl1">Increase (Decrease) in Accrued Core Payment</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IncreaseDecreaseInAccruedCorePayment" xlink:to="mpaa_IncreaseDecreaseInAccruedCorePayment_lbl1" xlink:title="label: IncreaseDecreaseInAccruedCorePayment to mpaa_IncreaseDecreaseInAccruedCorePayment_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_IncreaseDecreaseInAccruedCorePayment_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="mpaa_IncreaseDecreaseInAccruedCorePayment_lbl2" xml:lang="en-US" id="mpaa_IncreaseDecreaseInAccruedCorePayment_lbl2">Accrued core payments</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IncreaseDecreaseInAccruedCorePayment" xlink:to="mpaa_IncreaseDecreaseInAccruedCorePayment_lbl2" xlink:title="label: IncreaseDecreaseInAccruedCorePayment to mpaa_IncreaseDecreaseInAccruedCorePayment_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_AmortizationOfInterestOnAccruedCorePayments" xlink:label="AmortizationOfInterestOnAccruedCorePayments" xlink:title="AmortizationOfInterestOnAccruedCorePayments" />
    <link:label xlink:type="resource" xlink:label="mpaa_AmortizationOfInterestOnAccruedCorePayments_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_AmortizationOfInterestOnAccruedCorePayments_lbl" xml:lang="en-US" id="mpaa_AmortizationOfInterestOnAccruedCorePayments_lbl">Refers to the amortization of interest on accrued core payments.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AmortizationOfInterestOnAccruedCorePayments" xlink:to="mpaa_AmortizationOfInterestOnAccruedCorePayments_lbl" xlink:title="label: AmortizationOfInterestOnAccruedCorePayments to mpaa_AmortizationOfInterestOnAccruedCorePayments_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_AmortizationOfInterestOnAccruedCorePayments_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_AmortizationOfInterestOnAccruedCorePayments_lbl1" xml:lang="en-US" id="mpaa_AmortizationOfInterestOnAccruedCorePayments_lbl1">Amortization of Interest on Accrued Core Payments</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AmortizationOfInterestOnAccruedCorePayments" xlink:to="mpaa_AmortizationOfInterestOnAccruedCorePayments_lbl1" xlink:title="label: AmortizationOfInterestOnAccruedCorePayments to mpaa_AmortizationOfInterestOnAccruedCorePayments_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_AmortizationOfInterestOnAccruedCorePayments_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="mpaa_AmortizationOfInterestOnAccruedCorePayments_lbl2" xml:lang="en-US" id="mpaa_AmortizationOfInterestOnAccruedCorePayments_lbl2">Amortization of interest on accrued core payments</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AmortizationOfInterestOnAccruedCorePayments" xlink:to="mpaa_AmortizationOfInterestOnAccruedCorePayments_lbl2" xlink:title="label: AmortizationOfInterestOnAccruedCorePayments to mpaa_AmortizationOfInterestOnAccruedCorePayments_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_IncreaseDecreaseInInventory" xlink:label="IncreaseDecreaseInInventory" xlink:title="IncreaseDecreaseInInventory" />
    <link:label xlink:type="resource" xlink:label="mpaa_IncreaseDecreaseInInventory_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_IncreaseDecreaseInInventory_lbl" xml:lang="en-US" id="mpaa_IncreaseDecreaseInInventory_lbl">The net change during the reporting period in the aggregate value of all non-core inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IncreaseDecreaseInInventory" xlink:to="mpaa_IncreaseDecreaseInInventory_lbl" xlink:title="label: IncreaseDecreaseInInventory to mpaa_IncreaseDecreaseInInventory_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_IncreaseDecreaseInInventory_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_IncreaseDecreaseInInventory_lbl1" xml:lang="en-US" id="mpaa_IncreaseDecreaseInInventory_lbl1">Increase (Decrease) in Inventory</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IncreaseDecreaseInInventory" xlink:to="mpaa_IncreaseDecreaseInInventory_lbl1" xlink:title="label: IncreaseDecreaseInInventory to mpaa_IncreaseDecreaseInInventory_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_IncreaseDecreaseInInventory_lbl2" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="mpaa_IncreaseDecreaseInInventory_lbl2" xml:lang="en-US" id="mpaa_IncreaseDecreaseInInventory_lbl2">Inventory</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IncreaseDecreaseInInventory" xlink:to="mpaa_IncreaseDecreaseInInventory_lbl2" xlink:title="label: IncreaseDecreaseInInventory to mpaa_IncreaseDecreaseInInventory_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_IncreaseDecreaseInCustomerFinishedGoodsReturnsAccrual" xlink:label="IncreaseDecreaseInCustomerFinishedGoodsReturnsAccrual" xlink:title="IncreaseDecreaseInCustomerFinishedGoodsReturnsAccrual" />
    <link:label xlink:type="resource" xlink:label="mpaa_IncreaseDecreaseInCustomerFinishedGoodsReturnsAccrual_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_IncreaseDecreaseInCustomerFinishedGoodsReturnsAccrual_lbl" xml:lang="en-US" id="mpaa_IncreaseDecreaseInCustomerFinishedGoodsReturnsAccrual_lbl">The net change during the reporting period in the customer finished goods returns accrual.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IncreaseDecreaseInCustomerFinishedGoodsReturnsAccrual" xlink:to="mpaa_IncreaseDecreaseInCustomerFinishedGoodsReturnsAccrual_lbl" xlink:title="label: IncreaseDecreaseInCustomerFinishedGoodsReturnsAccrual to mpaa_IncreaseDecreaseInCustomerFinishedGoodsReturnsAccrual_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_IncreaseDecreaseInCustomerFinishedGoodsReturnsAccrual_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_IncreaseDecreaseInCustomerFinishedGoodsReturnsAccrual_lbl1" xml:lang="en-US" id="mpaa_IncreaseDecreaseInCustomerFinishedGoodsReturnsAccrual_lbl1">Increase (decrease) in the Customer finished goods returns accrual</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IncreaseDecreaseInCustomerFinishedGoodsReturnsAccrual" xlink:to="mpaa_IncreaseDecreaseInCustomerFinishedGoodsReturnsAccrual_lbl1" xlink:title="label: IncreaseDecreaseInCustomerFinishedGoodsReturnsAccrual to mpaa_IncreaseDecreaseInCustomerFinishedGoodsReturnsAccrual_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_IncreaseDecreaseInCustomerFinishedGoodsReturnsAccrual_lbl2" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:title="mpaa_IncreaseDecreaseInCustomerFinishedGoodsReturnsAccrual_lbl2" xml:lang="en-US" id="mpaa_IncreaseDecreaseInCustomerFinishedGoodsReturnsAccrual_lbl2">Customer finished goods returns accrual</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IncreaseDecreaseInCustomerFinishedGoodsReturnsAccrual" xlink:to="mpaa_IncreaseDecreaseInCustomerFinishedGoodsReturnsAccrual_lbl2" xlink:title="label: IncreaseDecreaseInCustomerFinishedGoodsReturnsAccrual to mpaa_IncreaseDecreaseInCustomerFinishedGoodsReturnsAccrual_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_IncreaseDecreaseInInventoryUnreturned" xlink:label="IncreaseDecreaseInInventoryUnreturned" xlink:title="IncreaseDecreaseInInventoryUnreturned" />
    <link:label xlink:type="resource" xlink:label="mpaa_IncreaseDecreaseInInventoryUnreturned_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_IncreaseDecreaseInInventoryUnreturned_lbl" xml:lang="en-US" id="mpaa_IncreaseDecreaseInInventoryUnreturned_lbl">The net change during the reporting period in the amount recorded for the added unit value of finished goods shipped to customers that the Company expects to be returned within the normal operating cycle.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IncreaseDecreaseInInventoryUnreturned" xlink:to="mpaa_IncreaseDecreaseInInventoryUnreturned_lbl" xlink:title="label: IncreaseDecreaseInInventoryUnreturned to mpaa_IncreaseDecreaseInInventoryUnreturned_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_IncreaseDecreaseInInventoryUnreturned_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_IncreaseDecreaseInInventoryUnreturned_lbl1" xml:lang="en-US" id="mpaa_IncreaseDecreaseInInventoryUnreturned_lbl1">Increase (Decrease) in Inventory unreturned</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IncreaseDecreaseInInventoryUnreturned" xlink:to="mpaa_IncreaseDecreaseInInventoryUnreturned_lbl1" xlink:title="label: IncreaseDecreaseInInventoryUnreturned to mpaa_IncreaseDecreaseInInventoryUnreturned_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_IncreaseDecreaseInInventoryUnreturned_lbl2" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="mpaa_IncreaseDecreaseInInventoryUnreturned_lbl2" xml:lang="en-US" id="mpaa_IncreaseDecreaseInInventoryUnreturned_lbl2">Inventory unreturned</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IncreaseDecreaseInInventoryUnreturned" xlink:to="mpaa_IncreaseDecreaseInInventoryUnreturned_lbl2" xlink:title="label: IncreaseDecreaseInInventoryUnreturned to mpaa_IncreaseDecreaseInInventoryUnreturned_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_IncreaseDecreaseInLong-TermCoreInventory" xlink:label="IncreaseDecreaseInLong-TermCoreInventory" xlink:title="IncreaseDecreaseInLong-TermCoreInventory" />
    <link:label xlink:type="resource" xlink:label="mpaa_IncreaseDecreaseInLong-TermCoreInventory_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_IncreaseDecreaseInLong-TermCoreInventory_lbl" xml:lang="en-US" id="mpaa_IncreaseDecreaseInLong-TermCoreInventory_lbl">The net change during the reporting period in long-term core inventory.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IncreaseDecreaseInLong-TermCoreInventory" xlink:to="mpaa_IncreaseDecreaseInLong-TermCoreInventory_lbl" xlink:title="label: IncreaseDecreaseInLong-TermCoreInventory to mpaa_IncreaseDecreaseInLong-TermCoreInventory_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_IncreaseDecreaseInLong-TermCoreInventory_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_IncreaseDecreaseInLong-TermCoreInventory_lbl1" xml:lang="en-US" id="mpaa_IncreaseDecreaseInLong-TermCoreInventory_lbl1">Increase (decrease) in the Long-term core inventory</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IncreaseDecreaseInLong-TermCoreInventory" xlink:to="mpaa_IncreaseDecreaseInLong-TermCoreInventory_lbl1" xlink:title="label: IncreaseDecreaseInLong-TermCoreInventory to mpaa_IncreaseDecreaseInLong-TermCoreInventory_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_IncreaseDecreaseInLong-TermCoreInventory_lbl2" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="mpaa_IncreaseDecreaseInLong-TermCoreInventory_lbl2" xml:lang="en-US" id="mpaa_IncreaseDecreaseInLong-TermCoreInventory_lbl2">Long-term core inventory</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IncreaseDecreaseInLong-TermCoreInventory" xlink:to="mpaa_IncreaseDecreaseInLong-TermCoreInventory_lbl2" xlink:title="label: IncreaseDecreaseInLong-TermCoreInventory to mpaa_IncreaseDecreaseInLong-TermCoreInventory_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_ProvisionForRecoveryOfCustomerPaymentDiscrepancies" xlink:label="ProvisionForRecoveryOfCustomerPaymentDiscrepancies" xlink:title="ProvisionForRecoveryOfCustomerPaymentDiscrepancies" />
    <link:label xlink:type="resource" xlink:label="mpaa_ProvisionForRecoveryOfCustomerPaymentDiscrepancies_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_ProvisionForRecoveryOfCustomerPaymentDiscrepancies_lbl" xml:lang="en-US" id="mpaa_ProvisionForRecoveryOfCustomerPaymentDiscrepancies_lbl">Amount of recovery of customer payment discrepancies which had been fully or partially written-off.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ProvisionForRecoveryOfCustomerPaymentDiscrepancies" xlink:to="mpaa_ProvisionForRecoveryOfCustomerPaymentDiscrepancies_lbl" xlink:title="label: ProvisionForRecoveryOfCustomerPaymentDiscrepancies to mpaa_ProvisionForRecoveryOfCustomerPaymentDiscrepancies_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_ProvisionForRecoveryOfCustomerPaymentDiscrepancies_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_ProvisionForRecoveryOfCustomerPaymentDiscrepancies_lbl1" xml:lang="en-US" id="mpaa_ProvisionForRecoveryOfCustomerPaymentDiscrepancies_lbl1">Provision for Recovery of Customer Payment Discrepancies</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ProvisionForRecoveryOfCustomerPaymentDiscrepancies" xlink:to="mpaa_ProvisionForRecoveryOfCustomerPaymentDiscrepancies_lbl1" xlink:title="label: ProvisionForRecoveryOfCustomerPaymentDiscrepancies to mpaa_ProvisionForRecoveryOfCustomerPaymentDiscrepancies_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_ProvisionForRecoveryOfCustomerPaymentDiscrepancies_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="mpaa_ProvisionForRecoveryOfCustomerPaymentDiscrepancies_lbl2" xml:lang="en-US" id="mpaa_ProvisionForRecoveryOfCustomerPaymentDiscrepancies_lbl2">Net provision for customer payment discrepancies</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ProvisionForRecoveryOfCustomerPaymentDiscrepancies" xlink:to="mpaa_ProvisionForRecoveryOfCustomerPaymentDiscrepancies_lbl2" xlink:title="label: ProvisionForRecoveryOfCustomerPaymentDiscrepancies to mpaa_ProvisionForRecoveryOfCustomerPaymentDiscrepancies_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_CashPaidDuringPeriodForAbstract" xlink:label="CashPaidDuringPeriodForAbstract" xlink:title="CashPaidDuringPeriodForAbstract" />
    <link:label xlink:type="resource" xlink:label="mpaa_CashPaidDuringPeriodForAbstract_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_CashPaidDuringPeriodForAbstract_lbl1" xml:lang="en-US" id="mpaa_CashPaidDuringPeriodForAbstract_lbl1">Cash paid during the period for: [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CashPaidDuringPeriodForAbstract" xlink:to="mpaa_CashPaidDuringPeriodForAbstract_lbl1" xlink:title="label: CashPaidDuringPeriodForAbstract to mpaa_CashPaidDuringPeriodForAbstract_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_CashPaidDuringPeriodForAbstract_lbl2" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:title="mpaa_CashPaidDuringPeriodForAbstract_lbl2" xml:lang="en-US" id="mpaa_CashPaidDuringPeriodForAbstract_lbl2">Cash paid during the period for:</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CashPaidDuringPeriodForAbstract" xlink:to="mpaa_CashPaidDuringPeriodForAbstract_lbl2" xlink:title="label: CashPaidDuringPeriodForAbstract to mpaa_CashPaidDuringPeriodForAbstract_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_FairValueMeasurementAdjustmentOfContingentConsiderationGainLossIncludedInEarnings" xlink:label="FairValueMeasurementAdjustmentOfContingentConsiderationGainLossIncludedInEarnings" xlink:title="FairValueMeasurementAdjustmentOfContingentConsiderationGainLossIncludedInEarnings" />
    <link:label xlink:type="resource" xlink:label="mpaa_FairValueMeasurementAdjustmentOfContingentConsiderationGainLossIncludedInEarnings_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_FairValueMeasurementAdjustmentOfContingentConsiderationGainLossIncludedInEarnings_lbl" xml:lang="en-US" id="mpaa_FairValueMeasurementAdjustmentOfContingentConsiderationGainLossIncludedInEarnings_lbl">Amount of gain (loss) recognized on the income statement related to adjustment to fair value of contingent consideration.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueMeasurementAdjustmentOfContingentConsiderationGainLossIncludedInEarnings" xlink:to="mpaa_FairValueMeasurementAdjustmentOfContingentConsiderationGainLossIncludedInEarnings_lbl" xlink:title="label: FairValueMeasurementAdjustmentOfContingentConsiderationGainLossIncludedInEarnings to mpaa_FairValueMeasurementAdjustmentOfContingentConsiderationGainLossIncludedInEarnings_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_FairValueMeasurementAdjustmentOfContingentConsiderationGainLossIncludedInEarnings_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_FairValueMeasurementAdjustmentOfContingentConsiderationGainLossIncludedInEarnings_lbl1" xml:lang="en-US" id="mpaa_FairValueMeasurementAdjustmentOfContingentConsiderationGainLossIncludedInEarnings_lbl1">Fair Value Measurement, Adjustment of Contingent Consideration, Gain (Loss) Included in Earnings</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueMeasurementAdjustmentOfContingentConsiderationGainLossIncludedInEarnings" xlink:to="mpaa_FairValueMeasurementAdjustmentOfContingentConsiderationGainLossIncludedInEarnings_lbl1" xlink:title="label: FairValueMeasurementAdjustmentOfContingentConsiderationGainLossIncludedInEarnings to mpaa_FairValueMeasurementAdjustmentOfContingentConsiderationGainLossIncludedInEarnings_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_FairValueMeasurementAdjustmentOfContingentConsiderationGainLossIncludedInEarnings_lbl2" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="mpaa_FairValueMeasurementAdjustmentOfContingentConsiderationGainLossIncludedInEarnings_lbl2" xml:lang="en-US" id="mpaa_FairValueMeasurementAdjustmentOfContingentConsiderationGainLossIncludedInEarnings_lbl2">Gain due to change in fair value of the contingent consideration</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueMeasurementAdjustmentOfContingentConsiderationGainLossIncludedInEarnings" xlink:to="mpaa_FairValueMeasurementAdjustmentOfContingentConsiderationGainLossIncludedInEarnings_lbl2" xlink:title="label: FairValueMeasurementAdjustmentOfContingentConsiderationGainLossIncludedInEarnings to mpaa_FairValueMeasurementAdjustmentOfContingentConsiderationGainLossIncludedInEarnings_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_DiscountRecordedAsInterestExpense" xlink:label="DiscountRecordedAsInterestExpense" xlink:title="DiscountRecordedAsInterestExpense" />
    <link:label xlink:type="resource" xlink:label="mpaa_DiscountRecordedAsInterestExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_DiscountRecordedAsInterestExpense_lbl" xml:lang="en-US" id="mpaa_DiscountRecordedAsInterestExpense_lbl">The amount of the discount on accounts receivable balances sold that was recorded as interest expense during the period.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DiscountRecordedAsInterestExpense" xlink:to="mpaa_DiscountRecordedAsInterestExpense_lbl" xlink:title="label: DiscountRecordedAsInterestExpense to mpaa_DiscountRecordedAsInterestExpense_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_DiscountRecordedAsInterestExpense_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_DiscountRecordedAsInterestExpense_lbl1" xml:lang="en-US" id="mpaa_DiscountRecordedAsInterestExpense_lbl1">Discount Recorded As Interest Expense</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DiscountRecordedAsInterestExpense" xlink:to="mpaa_DiscountRecordedAsInterestExpense_lbl1" xlink:title="label: DiscountRecordedAsInterestExpense to mpaa_DiscountRecordedAsInterestExpense_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_DiscountRecordedAsInterestExpense_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="mpaa_DiscountRecordedAsInterestExpense_lbl2" xml:lang="en-US" id="mpaa_DiscountRecordedAsInterestExpense_lbl2">Amount of discount as interest expense</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DiscountRecordedAsInterestExpense" xlink:to="mpaa_DiscountRecordedAsInterestExpense_lbl2" xlink:title="label: DiscountRecordedAsInterestExpense to mpaa_DiscountRecordedAsInterestExpense_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_AnnualizedWeightedAverageDiscountRateOnDiscountedAccountsReceivables" xlink:label="AnnualizedWeightedAverageDiscountRateOnDiscountedAccountsReceivables" xlink:title="AnnualizedWeightedAverageDiscountRateOnDiscountedAccountsReceivables" />
    <link:label xlink:type="resource" xlink:label="mpaa_AnnualizedWeightedAverageDiscountRateOnDiscountedAccountsReceivables_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_AnnualizedWeightedAverageDiscountRateOnDiscountedAccountsReceivables_lbl" xml:lang="en-US" id="mpaa_AnnualizedWeightedAverageDiscountRateOnDiscountedAccountsReceivables_lbl">Represents the weighted average discount rate, on an annualized basis, on the accounts receivable balances sold during the period.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AnnualizedWeightedAverageDiscountRateOnDiscountedAccountsReceivables" xlink:to="mpaa_AnnualizedWeightedAverageDiscountRateOnDiscountedAccountsReceivables_lbl" xlink:title="label: AnnualizedWeightedAverageDiscountRateOnDiscountedAccountsReceivables to mpaa_AnnualizedWeightedAverageDiscountRateOnDiscountedAccountsReceivables_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_AnnualizedWeightedAverageDiscountRateOnDiscountedAccountsReceivables_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_AnnualizedWeightedAverageDiscountRateOnDiscountedAccountsReceivables_lbl1" xml:lang="en-US" id="mpaa_AnnualizedWeightedAverageDiscountRateOnDiscountedAccountsReceivables_lbl1">Annualized Weighted Average Discount Rate On Discounted Accounts Receivables</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AnnualizedWeightedAverageDiscountRateOnDiscountedAccountsReceivables" xlink:to="mpaa_AnnualizedWeightedAverageDiscountRateOnDiscountedAccountsReceivables_lbl1" xlink:title="label: AnnualizedWeightedAverageDiscountRateOnDiscountedAccountsReceivables to mpaa_AnnualizedWeightedAverageDiscountRateOnDiscountedAccountsReceivables_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_AnnualizedWeightedAverageDiscountRateOnDiscountedAccountsReceivables_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="mpaa_AnnualizedWeightedAverageDiscountRateOnDiscountedAccountsReceivables_lbl2" xml:lang="en-US" id="mpaa_AnnualizedWeightedAverageDiscountRateOnDiscountedAccountsReceivables_lbl2">Annualized weighted average discount rate</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AnnualizedWeightedAverageDiscountRateOnDiscountedAccountsReceivables" xlink:to="mpaa_AnnualizedWeightedAverageDiscountRateOnDiscountedAccountsReceivables_lbl2" xlink:title="label: AnnualizedWeightedAverageDiscountRateOnDiscountedAccountsReceivables to mpaa_AnnualizedWeightedAverageDiscountRateOnDiscountedAccountsReceivables_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_AccountsReceivablesDiscounted" xlink:label="AccountsReceivablesDiscounted" xlink:title="AccountsReceivablesDiscounted" />
    <link:label xlink:type="resource" xlink:label="mpaa_AccountsReceivablesDiscounted_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_AccountsReceivablesDiscounted_lbl" xml:lang="en-US" id="mpaa_AccountsReceivablesDiscounted_lbl">The amount of customers' receivable balances that have been sold to the customers' respective banks at a discount during the period.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AccountsReceivablesDiscounted" xlink:to="mpaa_AccountsReceivablesDiscounted_lbl" xlink:title="label: AccountsReceivablesDiscounted to mpaa_AccountsReceivablesDiscounted_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_AccountsReceivablesDiscounted_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_AccountsReceivablesDiscounted_lbl1" xml:lang="en-US" id="mpaa_AccountsReceivablesDiscounted_lbl1">Accounts Receivables Discounted</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AccountsReceivablesDiscounted" xlink:to="mpaa_AccountsReceivablesDiscounted_lbl1" xlink:title="label: AccountsReceivablesDiscounted to mpaa_AccountsReceivablesDiscounted_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_AccountsReceivablesDiscounted_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="mpaa_AccountsReceivablesDiscounted_lbl2" xml:lang="en-US" id="mpaa_AccountsReceivablesDiscounted_lbl2">Receivables discounted</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AccountsReceivablesDiscounted" xlink:to="mpaa_AccountsReceivablesDiscounted_lbl2" xlink:title="label: AccountsReceivablesDiscounted to mpaa_AccountsReceivablesDiscounted_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_DiscountedAccountsReceivableWeightedAverageDaysForAcceleratedCollection" xlink:label="DiscountedAccountsReceivableWeightedAverageDaysForAcceleratedCollection" xlink:title="DiscountedAccountsReceivableWeightedAverageDaysForAcceleratedCollection" />
    <link:label xlink:type="resource" xlink:label="mpaa_DiscountedAccountsReceivableWeightedAverageDaysForAcceleratedCollection_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_DiscountedAccountsReceivableWeightedAverageDaysForAcceleratedCollection_lbl" xml:lang="en-US" id="mpaa_DiscountedAccountsReceivableWeightedAverageDaysForAcceleratedCollection_lbl">Represents the weighted average number of days these discount arrangements have allowed the Company to accelerate collection of discounted accounts receivable balances during the period.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DiscountedAccountsReceivableWeightedAverageDaysForAcceleratedCollection" xlink:to="mpaa_DiscountedAccountsReceivableWeightedAverageDaysForAcceleratedCollection_lbl" xlink:title="label: DiscountedAccountsReceivableWeightedAverageDaysForAcceleratedCollection to mpaa_DiscountedAccountsReceivableWeightedAverageDaysForAcceleratedCollection_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_DiscountedAccountsReceivableWeightedAverageDaysForAcceleratedCollection_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_DiscountedAccountsReceivableWeightedAverageDaysForAcceleratedCollection_lbl1" xml:lang="en-US" id="mpaa_DiscountedAccountsReceivableWeightedAverageDaysForAcceleratedCollection_lbl1">Discounted Accounts Receivable Weighted Average Days For Accelerated Collection</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DiscountedAccountsReceivableWeightedAverageDaysForAcceleratedCollection" xlink:to="mpaa_DiscountedAccountsReceivableWeightedAverageDaysForAcceleratedCollection_lbl1" xlink:title="label: DiscountedAccountsReceivableWeightedAverageDaysForAcceleratedCollection to mpaa_DiscountedAccountsReceivableWeightedAverageDaysForAcceleratedCollection_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_DiscountedAccountsReceivableWeightedAverageDaysForAcceleratedCollection_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="mpaa_DiscountedAccountsReceivableWeightedAverageDaysForAcceleratedCollection_lbl2" xml:lang="en-US" id="mpaa_DiscountedAccountsReceivableWeightedAverageDaysForAcceleratedCollection_lbl2">Weighted average days</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DiscountedAccountsReceivableWeightedAverageDaysForAcceleratedCollection" xlink:to="mpaa_DiscountedAccountsReceivableWeightedAverageDaysForAcceleratedCollection_lbl2" xlink:title="label: DiscountedAccountsReceivableWeightedAverageDaysForAcceleratedCollection to mpaa_DiscountedAccountsReceivableWeightedAverageDaysForAcceleratedCollection_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_ContingentConsiderationMember" xlink:label="ContingentConsiderationMember" xlink:title="ContingentConsiderationMember" />
    <link:label xlink:type="resource" xlink:label="mpaa_ContingentConsiderationMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_ContingentConsiderationMember_lbl" xml:lang="en-US" id="mpaa_ContingentConsiderationMember_lbl">Refers to contingent consideration amounts.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ContingentConsiderationMember" xlink:to="mpaa_ContingentConsiderationMember_lbl" xlink:title="label: ContingentConsiderationMember to mpaa_ContingentConsiderationMember_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_ContingentConsiderationMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_ContingentConsiderationMember_lbl1" xml:lang="en-US" id="mpaa_ContingentConsiderationMember_lbl1">Contingent Consideration [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ContingentConsiderationMember" xlink:to="mpaa_ContingentConsiderationMember_lbl1" xlink:title="label: ContingentConsiderationMember to mpaa_ContingentConsiderationMember_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_ContingentConsiderationMember_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="mpaa_ContingentConsiderationMember_lbl2" xml:lang="en-US" id="mpaa_ContingentConsiderationMember_lbl2">Contingent Consideration [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ContingentConsiderationMember" xlink:to="mpaa_ContingentConsiderationMember_lbl2" xlink:title="label: ContingentConsiderationMember to mpaa_ContingentConsiderationMember_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_SupplierWarrantMember" xlink:label="SupplierWarrantMember" xlink:title="SupplierWarrantMember" />
    <link:label xlink:type="resource" xlink:label="mpaa_SupplierWarrantMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_SupplierWarrantMember_lbl" xml:lang="en-US" id="mpaa_SupplierWarrantMember_lbl">Security (related to Supplier warrant) that gives the holder the right to purchase shares of stock in accordance with the terms of the instrument, usually upon payment of a specified amount.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SupplierWarrantMember" xlink:to="mpaa_SupplierWarrantMember_lbl" xlink:title="label: SupplierWarrantMember to mpaa_SupplierWarrantMember_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_SupplierWarrantMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_SupplierWarrantMember_lbl1" xml:lang="en-US" id="mpaa_SupplierWarrantMember_lbl1">Supplier Warrant [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SupplierWarrantMember" xlink:to="mpaa_SupplierWarrantMember_lbl1" xlink:title="label: SupplierWarrantMember to mpaa_SupplierWarrantMember_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_SupplierWarrantMember_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="mpaa_SupplierWarrantMember_lbl2" xml:lang="en-US" id="mpaa_SupplierWarrantMember_lbl2">Supplier Warrant [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SupplierWarrantMember" xlink:to="mpaa_SupplierWarrantMember_lbl2" xlink:title="label: SupplierWarrantMember to mpaa_SupplierWarrantMember_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_WarrantLiabilityFairValueDisclosure" xlink:label="WarrantLiabilityFairValueDisclosure" xlink:title="WarrantLiabilityFairValueDisclosure" />
    <link:label xlink:type="resource" xlink:label="mpaa_WarrantLiabilityFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_WarrantLiabilityFairValueDisclosure_lbl" xml:lang="en-US" id="mpaa_WarrantLiabilityFairValueDisclosure_lbl">This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents the amount of warrant liability as of the balance sheet date.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="WarrantLiabilityFairValueDisclosure" xlink:to="mpaa_WarrantLiabilityFairValueDisclosure_lbl" xlink:title="label: WarrantLiabilityFairValueDisclosure to mpaa_WarrantLiabilityFairValueDisclosure_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_WarrantLiabilityFairValueDisclosure_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_WarrantLiabilityFairValueDisclosure_lbl1" xml:lang="en-US" id="mpaa_WarrantLiabilityFairValueDisclosure_lbl1">Warrant liability, Fair Value Disclosure</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="WarrantLiabilityFairValueDisclosure" xlink:to="mpaa_WarrantLiabilityFairValueDisclosure_lbl1" xlink:title="label: WarrantLiabilityFairValueDisclosure to mpaa_WarrantLiabilityFairValueDisclosure_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_WarrantLiabilityFairValueDisclosure_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="mpaa_WarrantLiabilityFairValueDisclosure_lbl2" xml:lang="en-US" id="mpaa_WarrantLiabilityFairValueDisclosure_lbl2">Warrant liability</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="WarrantLiabilityFairValueDisclosure" xlink:to="mpaa_WarrantLiabilityFairValueDisclosure_lbl2" xlink:title="label: WarrantLiabilityFairValueDisclosure to mpaa_WarrantLiabilityFairValueDisclosure_lbl2" />
    <link:label xlink:type="resource" xlink:label="mpaa_WarrantLiabilityFairValueDisclosure_lbl3" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:title="mpaa_WarrantLiabilityFairValueDisclosure_lbl3" xml:lang="en-US" id="mpaa_WarrantLiabilityFairValueDisclosure_lbl3">Fair value of warrants issued</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="WarrantLiabilityFairValueDisclosure" xlink:to="mpaa_WarrantLiabilityFairValueDisclosure_lbl3" xlink:title="label: WarrantLiabilityFairValueDisclosure to mpaa_WarrantLiabilityFairValueDisclosure_lbl3" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_DeferredCompensationFairValueDisclosure" xlink:label="DeferredCompensationFairValueDisclosure" xlink:title="DeferredCompensationFairValueDisclosure" />
    <link:label xlink:type="resource" xlink:label="mpaa_DeferredCompensationFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_DeferredCompensationFairValueDisclosure_lbl" xml:lang="en-US" id="mpaa_DeferredCompensationFairValueDisclosure_lbl">This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents the amount of deferred compensation liability as of the balance sheet date.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DeferredCompensationFairValueDisclosure" xlink:to="mpaa_DeferredCompensationFairValueDisclosure_lbl" xlink:title="label: DeferredCompensationFairValueDisclosure to mpaa_DeferredCompensationFairValueDisclosure_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_DeferredCompensationFairValueDisclosure_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_DeferredCompensationFairValueDisclosure_lbl1" xml:lang="en-US" id="mpaa_DeferredCompensationFairValueDisclosure_lbl1">Deferred compensation, Fair Value Disclosure</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DeferredCompensationFairValueDisclosure" xlink:to="mpaa_DeferredCompensationFairValueDisclosure_lbl1" xlink:title="label: DeferredCompensationFairValueDisclosure to mpaa_DeferredCompensationFairValueDisclosure_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_DeferredCompensationFairValueDisclosure_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="mpaa_DeferredCompensationFairValueDisclosure_lbl2" xml:lang="en-US" id="mpaa_DeferredCompensationFairValueDisclosure_lbl2">Deferred compensation</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DeferredCompensationFairValueDisclosure" xlink:to="mpaa_DeferredCompensationFairValueDisclosure_lbl2" xlink:title="label: DeferredCompensationFairValueDisclosure to mpaa_DeferredCompensationFairValueDisclosure_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_StockRepurchasedAndRetiredDuringPeriodCumulativeValue" xlink:label="StockRepurchasedAndRetiredDuringPeriodCumulativeValue" xlink:title="StockRepurchasedAndRetiredDuringPeriodCumulativeValue" />
    <link:label xlink:type="resource" xlink:label="mpaa_StockRepurchasedAndRetiredDuringPeriodCumulativeValue_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_StockRepurchasedAndRetiredDuringPeriodCumulativeValue_lbl" xml:lang="en-US" id="mpaa_StockRepurchasedAndRetiredDuringPeriodCumulativeValue_lbl">The cumulative equity impact of the value of stock that has been repurchased and retired since the inception of the repurchase program. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital).</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockRepurchasedAndRetiredDuringPeriodCumulativeValue" xlink:to="mpaa_StockRepurchasedAndRetiredDuringPeriodCumulativeValue_lbl" xlink:title="label: StockRepurchasedAndRetiredDuringPeriodCumulativeValue to mpaa_StockRepurchasedAndRetiredDuringPeriodCumulativeValue_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_StockRepurchasedAndRetiredDuringPeriodCumulativeValue_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_StockRepurchasedAndRetiredDuringPeriodCumulativeValue_lbl1" xml:lang="en-US" id="mpaa_StockRepurchasedAndRetiredDuringPeriodCumulativeValue_lbl1">Stock Repurchased and Retired During Period, Cumulative Value</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockRepurchasedAndRetiredDuringPeriodCumulativeValue" xlink:to="mpaa_StockRepurchasedAndRetiredDuringPeriodCumulativeValue_lbl1" xlink:title="label: StockRepurchasedAndRetiredDuringPeriodCumulativeValue to mpaa_StockRepurchasedAndRetiredDuringPeriodCumulativeValue_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_StockRepurchasedAndRetiredDuringPeriodCumulativeValue_lbl2" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:title="mpaa_StockRepurchasedAndRetiredDuringPeriodCumulativeValue_lbl2" xml:lang="en-US" id="mpaa_StockRepurchasedAndRetiredDuringPeriodCumulativeValue_lbl2">Shares utilized, amount</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockRepurchasedAndRetiredDuringPeriodCumulativeValue" xlink:to="mpaa_StockRepurchasedAndRetiredDuringPeriodCumulativeValue_lbl2" xlink:title="label: StockRepurchasedAndRetiredDuringPeriodCumulativeValue to mpaa_StockRepurchasedAndRetiredDuringPeriodCumulativeValue_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_StockRepurchasedAndRetiredCumulativeShares" xlink:label="StockRepurchasedAndRetiredCumulativeShares" xlink:title="StockRepurchasedAndRetiredCumulativeShares" />
    <link:label xlink:type="resource" xlink:label="mpaa_StockRepurchasedAndRetiredCumulativeShares_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_StockRepurchasedAndRetiredCumulativeShares_lbl" xml:lang="en-US" id="mpaa_StockRepurchasedAndRetiredCumulativeShares_lbl">Number of cumulative shares that have been repurchased and retired.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockRepurchasedAndRetiredCumulativeShares" xlink:to="mpaa_StockRepurchasedAndRetiredCumulativeShares_lbl" xlink:title="label: StockRepurchasedAndRetiredCumulativeShares to mpaa_StockRepurchasedAndRetiredCumulativeShares_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_StockRepurchasedAndRetiredCumulativeShares_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_StockRepurchasedAndRetiredCumulativeShares_lbl1" xml:lang="en-US" id="mpaa_StockRepurchasedAndRetiredCumulativeShares_lbl1">Stock Repurchased and Retired, Cumulative Shares</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockRepurchasedAndRetiredCumulativeShares" xlink:to="mpaa_StockRepurchasedAndRetiredCumulativeShares_lbl1" xlink:title="label: StockRepurchasedAndRetiredCumulativeShares to mpaa_StockRepurchasedAndRetiredCumulativeShares_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_StockRepurchasedAndRetiredCumulativeShares_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="mpaa_StockRepurchasedAndRetiredCumulativeShares_lbl2" xml:lang="en-US" id="mpaa_StockRepurchasedAndRetiredCumulativeShares_lbl2">Shares repurchased and retired (in shares)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockRepurchasedAndRetiredCumulativeShares" xlink:to="mpaa_StockRepurchasedAndRetiredCumulativeShares_lbl2" xlink:title="label: StockRepurchasedAndRetiredCumulativeShares to mpaa_StockRepurchasedAndRetiredCumulativeShares_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_SummaryOfStockOptionTransactionsAbstract" xlink:label="SummaryOfStockOptionTransactionsAbstract" xlink:title="SummaryOfStockOptionTransactionsAbstract" />
    <link:label xlink:type="resource" xlink:label="mpaa_SummaryOfStockOptionTransactionsAbstract_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_SummaryOfStockOptionTransactionsAbstract_lbl1" xml:lang="en-US" id="mpaa_SummaryOfStockOptionTransactionsAbstract_lbl1">Summary of stock option transactions [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SummaryOfStockOptionTransactionsAbstract" xlink:to="mpaa_SummaryOfStockOptionTransactionsAbstract_lbl1" xlink:title="label: SummaryOfStockOptionTransactionsAbstract to mpaa_SummaryOfStockOptionTransactionsAbstract_lbl1" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsNonvestedWeightedAverage" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsNonvestedWeightedAverage" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsNonvestedWeightedAverage" />
    <link:label xlink:type="resource" xlink:label="mpaa_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsNonvestedWeightedAverage_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsNonvestedWeightedAverage_lbl" xml:lang="en-US" id="mpaa_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsNonvestedWeightedAverage_lbl">Weighted average exercise price of non-vested options outstanding.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsNonvestedWeightedAverage" xlink:to="mpaa_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsNonvestedWeightedAverage_lbl" xlink:title="label: ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsNonvestedWeightedAverage to mpaa_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsNonvestedWeightedAverage_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsNonvestedWeightedAverage_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsNonvestedWeightedAverage_lbl1" xml:lang="en-US" id="mpaa_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsNonvestedWeightedAverage_lbl1">Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsNonvestedWeightedAverage" xlink:to="mpaa_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsNonvestedWeightedAverage_lbl1" xlink:title="label: ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsNonvestedWeightedAverage to mpaa_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsNonvestedWeightedAverage_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsNonvestedWeightedAverage_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="mpaa_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsNonvestedWeightedAverage_lbl2" xml:lang="en-US" id="mpaa_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsNonvestedWeightedAverage_lbl2">Weighted average exercise price of stock options unvested (in dollars per share)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsNonvestedWeightedAverage" xlink:to="mpaa_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsNonvestedWeightedAverage_lbl2" xlink:title="label: ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsNonvestedWeightedAverage to mpaa_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsNonvestedWeightedAverage_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodGrantDateFairValue" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodGrantDateFairValue" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodGrantDateFairValue" />
    <link:label xlink:type="resource" xlink:label="mpaa_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodGrantDateFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodGrantDateFairValue_lbl" xml:lang="en-US" id="mpaa_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodGrantDateFairValue_lbl">The fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodGrantDateFairValue" xlink:to="mpaa_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodGrantDateFairValue_lbl" xlink:title="label: ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodGrantDateFairValue to mpaa_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodGrantDateFairValue_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodGrantDateFairValue_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodGrantDateFairValue_lbl1" xml:lang="en-US" id="mpaa_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodGrantDateFairValue_lbl1">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Grant Date Fair Value</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodGrantDateFairValue" xlink:to="mpaa_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodGrantDateFairValue_lbl1" xlink:title="label: ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodGrantDateFairValue to mpaa_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodGrantDateFairValue_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodGrantDateFairValue_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="mpaa_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodGrantDateFairValue_lbl2" xml:lang="en-US" id="mpaa_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodGrantDateFairValue_lbl2">Estimated fair value of awards granted</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodGrantDateFairValue" xlink:to="mpaa_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodGrantDateFairValue_lbl2" xlink:title="label: ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodGrantDateFairValue to mpaa_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodGrantDateFairValue_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_NoncoreInventoryAbstract" xlink:label="NoncoreInventoryAbstract" xlink:title="NoncoreInventoryAbstract" />
    <link:label xlink:type="resource" xlink:label="mpaa_NoncoreInventoryAbstract_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_NoncoreInventoryAbstract_lbl1" xml:lang="en-US" id="mpaa_NoncoreInventoryAbstract_lbl1">Noncore inventory [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NoncoreInventoryAbstract" xlink:to="mpaa_NoncoreInventoryAbstract_lbl1" xlink:title="label: NoncoreInventoryAbstract to mpaa_NoncoreInventoryAbstract_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_NoncoreInventoryAbstract_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="mpaa_NoncoreInventoryAbstract_lbl2" xml:lang="en-US" id="mpaa_NoncoreInventoryAbstract_lbl2">Non-core inventory [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NoncoreInventoryAbstract" xlink:to="mpaa_NoncoreInventoryAbstract_lbl2" xlink:title="label: NoncoreInventoryAbstract to mpaa_NoncoreInventoryAbstract_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_LongtermCoreInventoryAbstract" xlink:label="LongtermCoreInventoryAbstract" xlink:title="LongtermCoreInventoryAbstract" />
    <link:label xlink:type="resource" xlink:label="mpaa_LongtermCoreInventoryAbstract_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_LongtermCoreInventoryAbstract_lbl1" xml:lang="en-US" id="mpaa_LongtermCoreInventoryAbstract_lbl1">Longterm core inventory [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LongtermCoreInventoryAbstract" xlink:to="mpaa_LongtermCoreInventoryAbstract_lbl1" xlink:title="label: LongtermCoreInventoryAbstract to mpaa_LongtermCoreInventoryAbstract_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_LongtermCoreInventoryAbstract_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="mpaa_LongtermCoreInventoryAbstract_lbl2" xml:lang="en-US" id="mpaa_LongtermCoreInventoryAbstract_lbl2">Long-term core inventory [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LongtermCoreInventoryAbstract" xlink:to="mpaa_LongtermCoreInventoryAbstract_lbl2" xlink:title="label: LongtermCoreInventoryAbstract to mpaa_LongtermCoreInventoryAbstract_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_UsedCoresHeldAtFacilities" xlink:label="UsedCoresHeldAtFacilities" xlink:title="UsedCoresHeldAtFacilities" />
    <link:label xlink:type="resource" xlink:label="mpaa_UsedCoresHeldAtFacilities_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_UsedCoresHeldAtFacilities_lbl" xml:lang="en-US" id="mpaa_UsedCoresHeldAtFacilities_lbl">Gross amount of used cores held at the facilities as of the balance sheet date.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="UsedCoresHeldAtFacilities" xlink:to="mpaa_UsedCoresHeldAtFacilities_lbl" xlink:title="label: UsedCoresHeldAtFacilities to mpaa_UsedCoresHeldAtFacilities_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_UsedCoresHeldAtFacilities_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_UsedCoresHeldAtFacilities_lbl1" xml:lang="en-US" id="mpaa_UsedCoresHeldAtFacilities_lbl1">Used cores held at the facilities</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="UsedCoresHeldAtFacilities" xlink:to="mpaa_UsedCoresHeldAtFacilities_lbl1" xlink:title="label: UsedCoresHeldAtFacilities to mpaa_UsedCoresHeldAtFacilities_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_UsedCoresHeldAtFacilities_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="mpaa_UsedCoresHeldAtFacilities_lbl2" xml:lang="en-US" id="mpaa_UsedCoresHeldAtFacilities_lbl2">Used cores held at the Company's facilities</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="UsedCoresHeldAtFacilities" xlink:to="mpaa_UsedCoresHeldAtFacilities_lbl2" xlink:title="label: UsedCoresHeldAtFacilities to mpaa_UsedCoresHeldAtFacilities_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_RemanufacturedCoresHeldInFinishedGoods" xlink:label="RemanufacturedCoresHeldInFinishedGoods" xlink:title="RemanufacturedCoresHeldInFinishedGoods" />
    <link:label xlink:type="resource" xlink:label="mpaa_RemanufacturedCoresHeldInFinishedGoods_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_RemanufacturedCoresHeldInFinishedGoods_lbl" xml:lang="en-US" id="mpaa_RemanufacturedCoresHeldInFinishedGoods_lbl">Gross amount of remanufactured cores held in finished goods as of the balance sheet date.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RemanufacturedCoresHeldInFinishedGoods" xlink:to="mpaa_RemanufacturedCoresHeldInFinishedGoods_lbl" xlink:title="label: RemanufacturedCoresHeldInFinishedGoods to mpaa_RemanufacturedCoresHeldInFinishedGoods_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_RemanufacturedCoresHeldInFinishedGoods_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_RemanufacturedCoresHeldInFinishedGoods_lbl1" xml:lang="en-US" id="mpaa_RemanufacturedCoresHeldInFinishedGoods_lbl1">Remanufactured cores held in finished goods</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RemanufacturedCoresHeldInFinishedGoods" xlink:to="mpaa_RemanufacturedCoresHeldInFinishedGoods_lbl1" xlink:title="label: RemanufacturedCoresHeldInFinishedGoods to mpaa_RemanufacturedCoresHeldInFinishedGoods_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_RemanufacturedCoresHeldInFinishedGoods_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="mpaa_RemanufacturedCoresHeldInFinishedGoods_lbl2" xml:lang="en-US" id="mpaa_RemanufacturedCoresHeldInFinishedGoods_lbl2">Remanufactured cores held in finished goods</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RemanufacturedCoresHeldInFinishedGoods" xlink:to="mpaa_RemanufacturedCoresHeldInFinishedGoods_lbl2" xlink:title="label: RemanufacturedCoresHeldInFinishedGoods to mpaa_RemanufacturedCoresHeldInFinishedGoods_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_UsedCoresExpectedToBeReturnedByCustomers" xlink:label="UsedCoresExpectedToBeReturnedByCustomers" xlink:title="UsedCoresExpectedToBeReturnedByCustomers" />
    <link:label xlink:type="resource" xlink:label="mpaa_UsedCoresExpectedToBeReturnedByCustomers_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_UsedCoresExpectedToBeReturnedByCustomers_lbl" xml:lang="en-US" id="mpaa_UsedCoresExpectedToBeReturnedByCustomers_lbl">Gross amount of used cores expected to be returned by customers as of the balance sheet date.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="UsedCoresExpectedToBeReturnedByCustomers" xlink:to="mpaa_UsedCoresExpectedToBeReturnedByCustomers_lbl" xlink:title="label: UsedCoresExpectedToBeReturnedByCustomers to mpaa_UsedCoresExpectedToBeReturnedByCustomers_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_UsedCoresExpectedToBeReturnedByCustomers_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_UsedCoresExpectedToBeReturnedByCustomers_lbl1" xml:lang="en-US" id="mpaa_UsedCoresExpectedToBeReturnedByCustomers_lbl1">Used cores expected to be returned by customers</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="UsedCoresExpectedToBeReturnedByCustomers" xlink:to="mpaa_UsedCoresExpectedToBeReturnedByCustomers_lbl1" xlink:title="label: UsedCoresExpectedToBeReturnedByCustomers to mpaa_UsedCoresExpectedToBeReturnedByCustomers_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_UsedCoresExpectedToBeReturnedByCustomers_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="mpaa_UsedCoresExpectedToBeReturnedByCustomers_lbl2" xml:lang="en-US" id="mpaa_UsedCoresExpectedToBeReturnedByCustomers_lbl2">Used cores expected to be returned by customers</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="UsedCoresExpectedToBeReturnedByCustomers" xlink:to="mpaa_UsedCoresExpectedToBeReturnedByCustomers_lbl2" xlink:title="label: UsedCoresExpectedToBeReturnedByCustomers to mpaa_UsedCoresExpectedToBeReturnedByCustomers_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_LongTermCoreInventoryGross" xlink:label="LongTermCoreInventoryGross" xlink:title="LongTermCoreInventoryGross" />
    <link:label xlink:type="resource" xlink:label="mpaa_LongTermCoreInventoryGross_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_LongTermCoreInventoryGross_lbl" xml:lang="en-US" id="mpaa_LongTermCoreInventoryGross_lbl">Gross amount (lower of cost or net realizable value) as of the balance sheet date of (1) used cores held in inventory at Company facilities, (2) used cores expected to be returned by the Company's customers, (3) remanufactured cores held in finished goods at Company facilities, and (4) remanufactured cores held at customers locations.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LongTermCoreInventoryGross" xlink:to="mpaa_LongTermCoreInventoryGross_lbl" xlink:title="label: LongTermCoreInventoryGross to mpaa_LongTermCoreInventoryGross_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_LongTermCoreInventoryGross_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_LongTermCoreInventoryGross_lbl1" xml:lang="en-US" id="mpaa_LongTermCoreInventoryGross_lbl1">Long-term core inventory - gross</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LongTermCoreInventoryGross" xlink:to="mpaa_LongTermCoreInventoryGross_lbl1" xlink:title="label: LongTermCoreInventoryGross to mpaa_LongTermCoreInventoryGross_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_LongTermCoreInventoryGross_lbl2" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="mpaa_LongTermCoreInventoryGross_lbl2" xml:lang="en-US" id="mpaa_LongTermCoreInventoryGross_lbl2">Long-term core inventory - gross</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LongTermCoreInventoryGross" xlink:to="mpaa_LongTermCoreInventoryGross_lbl2" xlink:title="label: LongTermCoreInventoryGross to mpaa_LongTermCoreInventoryGross_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_RemanufacturedCoresHeldAtCustomersLocations" xlink:label="RemanufacturedCoresHeldAtCustomersLocations" xlink:title="RemanufacturedCoresHeldAtCustomersLocations" />
    <link:label xlink:type="resource" xlink:label="mpaa_RemanufacturedCoresHeldAtCustomersLocations_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_RemanufacturedCoresHeldAtCustomersLocations_lbl" xml:lang="en-US" id="mpaa_RemanufacturedCoresHeldAtCustomersLocations_lbl">Gross amount of remanufactured cores held at customers' locations as of the balance sheet date.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RemanufacturedCoresHeldAtCustomersLocations" xlink:to="mpaa_RemanufacturedCoresHeldAtCustomersLocations_lbl" xlink:title="label: RemanufacturedCoresHeldAtCustomersLocations to mpaa_RemanufacturedCoresHeldAtCustomersLocations_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_RemanufacturedCoresHeldAtCustomersLocations_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_RemanufacturedCoresHeldAtCustomersLocations_lbl1" xml:lang="en-US" id="mpaa_RemanufacturedCoresHeldAtCustomersLocations_lbl1">Remanufactured cores held at customers' locations</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RemanufacturedCoresHeldAtCustomersLocations" xlink:to="mpaa_RemanufacturedCoresHeldAtCustomersLocations_lbl1" xlink:title="label: RemanufacturedCoresHeldAtCustomersLocations to mpaa_RemanufacturedCoresHeldAtCustomersLocations_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_RemanufacturedCoresHeldAtCustomersLocations_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="mpaa_RemanufacturedCoresHeldAtCustomersLocations_lbl2" xml:lang="en-US" id="mpaa_RemanufacturedCoresHeldAtCustomersLocations_lbl2">Remanufactured cores held at customers' locations</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RemanufacturedCoresHeldAtCustomersLocations" xlink:to="mpaa_RemanufacturedCoresHeldAtCustomersLocations_lbl2" xlink:title="label: RemanufacturedCoresHeldAtCustomersLocations to mpaa_RemanufacturedCoresHeldAtCustomersLocations_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_InventoryValuationReservesLongTermCore" xlink:label="InventoryValuationReservesLongTermCore" xlink:title="InventoryValuationReservesLongTermCore" />
    <link:label xlink:type="resource" xlink:label="mpaa_InventoryValuationReservesLongTermCore_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_InventoryValuationReservesLongTermCore_lbl" xml:lang="en-US" id="mpaa_InventoryValuationReservesLongTermCore_lbl">The amount of the valuation account as of the balance sheet date which reduces the carrying amount of long-term core inventory to net realizable value; takes into consideration such factors as market value, excessive quantities based on expected sales, technological obsolescence, and shrinkage.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InventoryValuationReservesLongTermCore" xlink:to="mpaa_InventoryValuationReservesLongTermCore_lbl" xlink:title="label: InventoryValuationReservesLongTermCore to mpaa_InventoryValuationReservesLongTermCore_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_InventoryValuationReservesLongTermCore_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_InventoryValuationReservesLongTermCore_lbl1" xml:lang="en-US" id="mpaa_InventoryValuationReservesLongTermCore_lbl1">Inventory Valuation Reserves, Long Term Core</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InventoryValuationReservesLongTermCore" xlink:to="mpaa_InventoryValuationReservesLongTermCore_lbl1" xlink:title="label: InventoryValuationReservesLongTermCore to mpaa_InventoryValuationReservesLongTermCore_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_InventoryValuationReservesLongTermCore_lbl2" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="mpaa_InventoryValuationReservesLongTermCore_lbl2" xml:lang="en-US" id="mpaa_InventoryValuationReservesLongTermCore_lbl2">Less allowance for excess and obsolete inventory</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InventoryValuationReservesLongTermCore" xlink:to="mpaa_InventoryValuationReservesLongTermCore_lbl2" xlink:title="label: InventoryValuationReservesLongTermCore to mpaa_InventoryValuationReservesLongTermCore_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_InventoryValuationReservesNonCore" xlink:label="InventoryValuationReservesNonCore" xlink:title="InventoryValuationReservesNonCore" />
    <link:label xlink:type="resource" xlink:label="mpaa_InventoryValuationReservesNonCore_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_InventoryValuationReservesNonCore_lbl" xml:lang="en-US" id="mpaa_InventoryValuationReservesNonCore_lbl">The amount of the valuation account as of the balance sheet date which reduces the carrying amount of non-core inventory to net realizable value; takes into consideration such factors as market value, excessive quantities based on expected sales, technological obsolescence, and shrinkage.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InventoryValuationReservesNonCore" xlink:to="mpaa_InventoryValuationReservesNonCore_lbl" xlink:title="label: InventoryValuationReservesNonCore to mpaa_InventoryValuationReservesNonCore_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_InventoryValuationReservesNonCore_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_InventoryValuationReservesNonCore_lbl1" xml:lang="en-US" id="mpaa_InventoryValuationReservesNonCore_lbl1">Inventory Valuation Reserves, Non-Core</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InventoryValuationReservesNonCore" xlink:to="mpaa_InventoryValuationReservesNonCore_lbl1" xlink:title="label: InventoryValuationReservesNonCore to mpaa_InventoryValuationReservesNonCore_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_InventoryValuationReservesNonCore_lbl2" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="mpaa_InventoryValuationReservesNonCore_lbl2" xml:lang="en-US" id="mpaa_InventoryValuationReservesNonCore_lbl2">Less allowance for excess and obsolete inventory</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InventoryValuationReservesNonCore" xlink:to="mpaa_InventoryValuationReservesNonCore_lbl2" xlink:title="label: InventoryValuationReservesNonCore to mpaa_InventoryValuationReservesNonCore_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_WarrantyAccrualIncludedInCustomerReturnsRgaIssued" xlink:label="WarrantyAccrualIncludedInCustomerReturnsRgaIssued" xlink:title="WarrantyAccrualIncludedInCustomerReturnsRgaIssued" />
    <link:label xlink:type="resource" xlink:label="mpaa_WarrantyAccrualIncludedInCustomerReturnsRgaIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_WarrantyAccrualIncludedInCustomerReturnsRgaIssued_lbl" xml:lang="en-US" id="mpaa_WarrantyAccrualIncludedInCustomerReturnsRgaIssued_lbl">Amount as of the balance sheet date of the warranty accrual for which an RGA has been issued and is included as an offset account to total net accounts receivable.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="WarrantyAccrualIncludedInCustomerReturnsRgaIssued" xlink:to="mpaa_WarrantyAccrualIncludedInCustomerReturnsRgaIssued_lbl" xlink:title="label: WarrantyAccrualIncludedInCustomerReturnsRgaIssued to mpaa_WarrantyAccrualIncludedInCustomerReturnsRgaIssued_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_WarrantyAccrualIncludedInCustomerReturnsRgaIssued_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_WarrantyAccrualIncludedInCustomerReturnsRgaIssued_lbl1" xml:lang="en-US" id="mpaa_WarrantyAccrualIncludedInCustomerReturnsRgaIssued_lbl1">Warranty accrual included in customer returns RGA issued</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="WarrantyAccrualIncludedInCustomerReturnsRgaIssued" xlink:to="mpaa_WarrantyAccrualIncludedInCustomerReturnsRgaIssued_lbl1" xlink:title="label: WarrantyAccrualIncludedInCustomerReturnsRgaIssued to mpaa_WarrantyAccrualIncludedInCustomerReturnsRgaIssued_lbl1" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_WarrantyAccrualIncludedInCustomerFinishedGoodsReturnsAccrual" xlink:label="WarrantyAccrualIncludedInCustomerFinishedGoodsReturnsAccrual" xlink:title="WarrantyAccrualIncludedInCustomerFinishedGoodsReturnsAccrual" />
    <link:label xlink:type="resource" xlink:label="mpaa_WarrantyAccrualIncludedInCustomerFinishedGoodsReturnsAccrual_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_WarrantyAccrualIncludedInCustomerFinishedGoodsReturnsAccrual_lbl" xml:lang="en-US" id="mpaa_WarrantyAccrualIncludedInCustomerFinishedGoodsReturnsAccrual_lbl">Amount as of the balance sheet date of the warranty estimate for which an RGA has not been issued and is included in the customer finished goods returns accrual liability.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="WarrantyAccrualIncludedInCustomerFinishedGoodsReturnsAccrual" xlink:to="mpaa_WarrantyAccrualIncludedInCustomerFinishedGoodsReturnsAccrual_lbl" xlink:title="label: WarrantyAccrualIncludedInCustomerFinishedGoodsReturnsAccrual to mpaa_WarrantyAccrualIncludedInCustomerFinishedGoodsReturnsAccrual_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_WarrantyAccrualIncludedInCustomerFinishedGoodsReturnsAccrual_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_WarrantyAccrualIncludedInCustomerFinishedGoodsReturnsAccrual_lbl1" xml:lang="en-US" id="mpaa_WarrantyAccrualIncludedInCustomerFinishedGoodsReturnsAccrual_lbl1">Warranty accrual included in customer finished goods returns accrual</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="WarrantyAccrualIncludedInCustomerFinishedGoodsReturnsAccrual" xlink:to="mpaa_WarrantyAccrualIncludedInCustomerFinishedGoodsReturnsAccrual_lbl1" xlink:title="label: WarrantyAccrualIncludedInCustomerFinishedGoodsReturnsAccrual to mpaa_WarrantyAccrualIncludedInCustomerFinishedGoodsReturnsAccrual_lbl1" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_CustomerAllowancesEarned" xlink:label="CustomerAllowancesEarned" xlink:title="CustomerAllowancesEarned" />
    <link:label xlink:type="resource" xlink:label="mpaa_CustomerAllowancesEarned_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_CustomerAllowancesEarned_lbl" xml:lang="en-US" id="mpaa_CustomerAllowancesEarned_lbl">The earned allowances given to customers which reduces trade accounts receivable.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CustomerAllowancesEarned" xlink:to="mpaa_CustomerAllowancesEarned_lbl" xlink:title="label: CustomerAllowancesEarned to mpaa_CustomerAllowancesEarned_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_CustomerAllowancesEarned_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_CustomerAllowancesEarned_lbl1" xml:lang="en-US" id="mpaa_CustomerAllowancesEarned_lbl1">Customer Allowances Earned</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CustomerAllowancesEarned" xlink:to="mpaa_CustomerAllowancesEarned_lbl1" xlink:title="label: CustomerAllowancesEarned to mpaa_CustomerAllowancesEarned_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_CustomerAllowancesEarned_lbl2" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="mpaa_CustomerAllowancesEarned_lbl2" xml:lang="en-US" id="mpaa_CustomerAllowancesEarned_lbl2">Customer allowances earned</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CustomerAllowancesEarned" xlink:to="mpaa_CustomerAllowancesEarned_lbl2" xlink:title="label: CustomerAllowancesEarned to mpaa_CustomerAllowancesEarned_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_CustomerPaymentDiscrepancies" xlink:label="CustomerPaymentDiscrepancies" xlink:title="CustomerPaymentDiscrepancies" />
    <link:label xlink:type="resource" xlink:label="mpaa_CustomerPaymentDiscrepancies_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_CustomerPaymentDiscrepancies_lbl" xml:lang="en-US" id="mpaa_CustomerPaymentDiscrepancies_lbl">A reduction to trade accounts receivable for customer payment discrepancies.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CustomerPaymentDiscrepancies" xlink:to="mpaa_CustomerPaymentDiscrepancies_lbl" xlink:title="label: CustomerPaymentDiscrepancies to mpaa_CustomerPaymentDiscrepancies_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_CustomerPaymentDiscrepancies_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_CustomerPaymentDiscrepancies_lbl1" xml:lang="en-US" id="mpaa_CustomerPaymentDiscrepancies_lbl1">Customer Payment Discrepancies</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CustomerPaymentDiscrepancies" xlink:to="mpaa_CustomerPaymentDiscrepancies_lbl1" xlink:title="label: CustomerPaymentDiscrepancies to mpaa_CustomerPaymentDiscrepancies_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_CustomerPaymentDiscrepancies_lbl2" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="mpaa_CustomerPaymentDiscrepancies_lbl2" xml:lang="en-US" id="mpaa_CustomerPaymentDiscrepancies_lbl2">Customer payment discrepancies</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CustomerPaymentDiscrepancies" xlink:to="mpaa_CustomerPaymentDiscrepancies_lbl2" xlink:title="label: CustomerPaymentDiscrepancies to mpaa_CustomerPaymentDiscrepancies_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_CustomerCoreReturnsAccrualsCurrent" xlink:label="CustomerCoreReturnsAccrualsCurrent" xlink:title="CustomerCoreReturnsAccrualsCurrent" />
    <link:label xlink:type="resource" xlink:label="mpaa_CustomerCoreReturnsAccrualsCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_CustomerCoreReturnsAccrualsCurrent_lbl" xml:lang="en-US" id="mpaa_CustomerCoreReturnsAccrualsCurrent_lbl">Represents the estimated future credits to be provided for Used Cores returned by the customers.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CustomerCoreReturnsAccrualsCurrent" xlink:to="mpaa_CustomerCoreReturnsAccrualsCurrent_lbl" xlink:title="label: CustomerCoreReturnsAccrualsCurrent to mpaa_CustomerCoreReturnsAccrualsCurrent_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_CustomerCoreReturnsAccrualsCurrent_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_CustomerCoreReturnsAccrualsCurrent_lbl1" xml:lang="en-US" id="mpaa_CustomerCoreReturnsAccrualsCurrent_lbl1">Customer Core Returns Accruals Current</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CustomerCoreReturnsAccrualsCurrent" xlink:to="mpaa_CustomerCoreReturnsAccrualsCurrent_lbl1" xlink:title="label: CustomerCoreReturnsAccrualsCurrent to mpaa_CustomerCoreReturnsAccrualsCurrent_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_CustomerCoreReturnsAccrualsCurrent_lbl2" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="mpaa_CustomerCoreReturnsAccrualsCurrent_lbl2" xml:lang="en-US" id="mpaa_CustomerCoreReturnsAccrualsCurrent_lbl2">Customer core returns accruals</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CustomerCoreReturnsAccrualsCurrent" xlink:to="mpaa_CustomerCoreReturnsAccrualsCurrent_lbl2" xlink:title="label: CustomerCoreReturnsAccrualsCurrent to mpaa_CustomerCoreReturnsAccrualsCurrent_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_TotalAccountsReceivableOffsetAccounts" xlink:label="TotalAccountsReceivableOffsetAccounts" xlink:title="TotalAccountsReceivableOffsetAccounts" />
    <link:label xlink:type="resource" xlink:label="mpaa_TotalAccountsReceivableOffsetAccounts_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_TotalAccountsReceivableOffsetAccounts_lbl" xml:lang="en-US" id="mpaa_TotalAccountsReceivableOffsetAccounts_lbl">The sum of the total accounts receivable offset accounts.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="TotalAccountsReceivableOffsetAccounts" xlink:to="mpaa_TotalAccountsReceivableOffsetAccounts_lbl" xlink:title="label: TotalAccountsReceivableOffsetAccounts to mpaa_TotalAccountsReceivableOffsetAccounts_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_TotalAccountsReceivableOffsetAccounts_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_TotalAccountsReceivableOffsetAccounts_lbl1" xml:lang="en-US" id="mpaa_TotalAccountsReceivableOffsetAccounts_lbl1">Total Accounts Receivable Offset Accounts</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="TotalAccountsReceivableOffsetAccounts" xlink:to="mpaa_TotalAccountsReceivableOffsetAccounts_lbl1" xlink:title="label: TotalAccountsReceivableOffsetAccounts to mpaa_TotalAccountsReceivableOffsetAccounts_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_TotalAccountsReceivableOffsetAccounts_lbl2" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:title="mpaa_TotalAccountsReceivableOffsetAccounts_lbl2" xml:lang="en-US" id="mpaa_TotalAccountsReceivableOffsetAccounts_lbl2">Less: total accounts receivable offset accounts</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="TotalAccountsReceivableOffsetAccounts" xlink:to="mpaa_TotalAccountsReceivableOffsetAccounts_lbl2" xlink:title="label: TotalAccountsReceivableOffsetAccounts to mpaa_TotalAccountsReceivableOffsetAccounts_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_CustomerReturnsRgaIssued" xlink:label="CustomerReturnsRgaIssued" xlink:title="CustomerReturnsRgaIssued" />
    <link:label xlink:type="resource" xlink:label="mpaa_CustomerReturnsRgaIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_CustomerReturnsRgaIssued_lbl" xml:lang="en-US" id="mpaa_CustomerReturnsRgaIssued_lbl">A reduction from trade accounts receivable for returned goods authorization issued for in-transit unit returns.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CustomerReturnsRgaIssued" xlink:to="mpaa_CustomerReturnsRgaIssued_lbl" xlink:title="label: CustomerReturnsRgaIssued to mpaa_CustomerReturnsRgaIssued_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_CustomerReturnsRgaIssued_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_CustomerReturnsRgaIssued_lbl1" xml:lang="en-US" id="mpaa_CustomerReturnsRgaIssued_lbl1">Customer Returns RGA Issued</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CustomerReturnsRgaIssued" xlink:to="mpaa_CustomerReturnsRgaIssued_lbl1" xlink:title="label: CustomerReturnsRgaIssued to mpaa_CustomerReturnsRgaIssued_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_CustomerReturnsRgaIssued_lbl2" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="mpaa_CustomerReturnsRgaIssued_lbl2" xml:lang="en-US" id="mpaa_CustomerReturnsRgaIssued_lbl2">Customer returns RGA issued</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CustomerReturnsRgaIssued" xlink:to="mpaa_CustomerReturnsRgaIssued_lbl2" xlink:title="label: CustomerReturnsRgaIssued to mpaa_CustomerReturnsRgaIssued_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_ScheduleOfAmortizationExpenseForAcquiredIntangibleAssetsTableTextBlock" xlink:label="ScheduleOfAmortizationExpenseForAcquiredIntangibleAssetsTableTextBlock" xlink:title="ScheduleOfAmortizationExpenseForAcquiredIntangibleAssetsTableTextBlock" />
    <link:label xlink:type="resource" xlink:label="mpaa_ScheduleOfAmortizationExpenseForAcquiredIntangibleAssetsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_ScheduleOfAmortizationExpenseForAcquiredIntangibleAssetsTableTextBlock_lbl" xml:lang="en-US" id="mpaa_ScheduleOfAmortizationExpenseForAcquiredIntangibleAssetsTableTextBlock_lbl">Tabular disclosure of the amortization expense of acquired intangible assets during the period.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ScheduleOfAmortizationExpenseForAcquiredIntangibleAssetsTableTextBlock" xlink:to="mpaa_ScheduleOfAmortizationExpenseForAcquiredIntangibleAssetsTableTextBlock_lbl" xlink:title="label: ScheduleOfAmortizationExpenseForAcquiredIntangibleAssetsTableTextBlock to mpaa_ScheduleOfAmortizationExpenseForAcquiredIntangibleAssetsTableTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_ScheduleOfAmortizationExpenseForAcquiredIntangibleAssetsTableTextBlock_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_ScheduleOfAmortizationExpenseForAcquiredIntangibleAssetsTableTextBlock_lbl1" xml:lang="en-US" id="mpaa_ScheduleOfAmortizationExpenseForAcquiredIntangibleAssetsTableTextBlock_lbl1">Schedule of Amortization Expense for Acquired Intangible Assets [Table Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ScheduleOfAmortizationExpenseForAcquiredIntangibleAssetsTableTextBlock" xlink:to="mpaa_ScheduleOfAmortizationExpenseForAcquiredIntangibleAssetsTableTextBlock_lbl1" xlink:title="label: ScheduleOfAmortizationExpenseForAcquiredIntangibleAssetsTableTextBlock to mpaa_ScheduleOfAmortizationExpenseForAcquiredIntangibleAssetsTableTextBlock_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_ScheduleOfAmortizationExpenseForAcquiredIntangibleAssetsTableTextBlock_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="mpaa_ScheduleOfAmortizationExpenseForAcquiredIntangibleAssetsTableTextBlock_lbl2" xml:lang="en-US" id="mpaa_ScheduleOfAmortizationExpenseForAcquiredIntangibleAssetsTableTextBlock_lbl2">Amortization expense for acquired intangible assets</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ScheduleOfAmortizationExpenseForAcquiredIntangibleAssetsTableTextBlock" xlink:to="mpaa_ScheduleOfAmortizationExpenseForAcquiredIntangibleAssetsTableTextBlock_lbl2" xlink:title="label: ScheduleOfAmortizationExpenseForAcquiredIntangibleAssetsTableTextBlock to mpaa_ScheduleOfAmortizationExpenseForAcquiredIntangibleAssetsTableTextBlock_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_AmortizationExpenseForAcquiredIntangibleAssetsAbstract" xlink:label="AmortizationExpenseForAcquiredIntangibleAssetsAbstract" xlink:title="AmortizationExpenseForAcquiredIntangibleAssetsAbstract" />
    <link:label xlink:type="resource" xlink:label="mpaa_AmortizationExpenseForAcquiredIntangibleAssetsAbstract_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_AmortizationExpenseForAcquiredIntangibleAssetsAbstract_lbl1" xml:lang="en-US" id="mpaa_AmortizationExpenseForAcquiredIntangibleAssetsAbstract_lbl1">Amortization Expense for Acquired Intangible Assets [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AmortizationExpenseForAcquiredIntangibleAssetsAbstract" xlink:to="mpaa_AmortizationExpenseForAcquiredIntangibleAssetsAbstract_lbl1" xlink:title="label: AmortizationExpenseForAcquiredIntangibleAssetsAbstract to mpaa_AmortizationExpenseForAcquiredIntangibleAssetsAbstract_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_AmortizationExpenseForAcquiredIntangibleAssetsAbstract_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="mpaa_AmortizationExpenseForAcquiredIntangibleAssetsAbstract_lbl2" xml:lang="en-US" id="mpaa_AmortizationExpenseForAcquiredIntangibleAssetsAbstract_lbl2">Amortization expense for acquired intangible assets [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AmortizationExpenseForAcquiredIntangibleAssetsAbstract" xlink:to="mpaa_AmortizationExpenseForAcquiredIntangibleAssetsAbstract_lbl2" xlink:title="label: AmortizationExpenseForAcquiredIntangibleAssetsAbstract to mpaa_AmortizationExpenseForAcquiredIntangibleAssetsAbstract_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_BrakeMasterCylindersProductsMember" xlink:label="BrakeMasterCylindersProductsMember" xlink:title="BrakeMasterCylindersProductsMember" />
    <link:label xlink:type="resource" xlink:label="mpaa_BrakeMasterCylindersProductsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_BrakeMasterCylindersProductsMember_lbl" xml:lang="en-US" id="mpaa_BrakeMasterCylindersProductsMember_lbl">Refers to the brake master cylinders products that are sold by the entity.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="BrakeMasterCylindersProductsMember" xlink:to="mpaa_BrakeMasterCylindersProductsMember_lbl" xlink:title="label: BrakeMasterCylindersProductsMember to mpaa_BrakeMasterCylindersProductsMember_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_BrakeMasterCylindersProductsMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_BrakeMasterCylindersProductsMember_lbl1" xml:lang="en-US" id="mpaa_BrakeMasterCylindersProductsMember_lbl1">Brake Master Cylinders Products [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="BrakeMasterCylindersProductsMember" xlink:to="mpaa_BrakeMasterCylindersProductsMember_lbl1" xlink:title="label: BrakeMasterCylindersProductsMember to mpaa_BrakeMasterCylindersProductsMember_lbl1" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_WheelHubProductsMember" xlink:label="WheelHubProductsMember" xlink:title="WheelHubProductsMember" />
    <link:label xlink:type="resource" xlink:label="mpaa_WheelHubProductsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_WheelHubProductsMember_lbl" xml:lang="en-US" id="mpaa_WheelHubProductsMember_lbl">Refers to the wheel hub products that are sold by the entity.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="WheelHubProductsMember" xlink:to="mpaa_WheelHubProductsMember_lbl" xlink:title="label: WheelHubProductsMember to mpaa_WheelHubProductsMember_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_WheelHubProductsMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_WheelHubProductsMember_lbl1" xml:lang="en-US" id="mpaa_WheelHubProductsMember_lbl1">Wheel Hub Products [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="WheelHubProductsMember" xlink:to="mpaa_WheelHubProductsMember_lbl1" xlink:title="label: WheelHubProductsMember to mpaa_WheelHubProductsMember_lbl1" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_OtherProductsMember" xlink:label="OtherProductsMember" xlink:title="OtherProductsMember" />
    <link:label xlink:type="resource" xlink:label="mpaa_OtherProductsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_OtherProductsMember_lbl" xml:lang="en-US" id="mpaa_OtherProductsMember_lbl">Refers to all products other than rotating electrical, wheel hub and brake master cylinders that are sold by the entity.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OtherProductsMember" xlink:to="mpaa_OtherProductsMember_lbl" xlink:title="label: OtherProductsMember to mpaa_OtherProductsMember_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_OtherProductsMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_OtherProductsMember_lbl1" xml:lang="en-US" id="mpaa_OtherProductsMember_lbl1">Other Products [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OtherProductsMember" xlink:to="mpaa_OtherProductsMember_lbl1" xlink:title="label: OtherProductsMember to mpaa_OtherProductsMember_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_OtherProductsMember_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="mpaa_OtherProductsMember_lbl2" xml:lang="en-US" id="mpaa_OtherProductsMember_lbl2">Other Products [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OtherProductsMember" xlink:to="mpaa_OtherProductsMember_lbl2" xlink:title="label: OtherProductsMember to mpaa_OtherProductsMember_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_CustomerDMember" xlink:label="CustomerDMember" xlink:title="CustomerDMember" />
    <link:label xlink:type="resource" xlink:label="mpaa_CustomerDMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_CustomerDMember_lbl" xml:lang="en-US" id="mpaa_CustomerDMember_lbl">Represents the customer with the fourth largest percentage of net sales and accounts receivable.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CustomerDMember" xlink:to="mpaa_CustomerDMember_lbl" xlink:title="label: CustomerDMember to mpaa_CustomerDMember_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_CustomerDMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_CustomerDMember_lbl1" xml:lang="en-US" id="mpaa_CustomerDMember_lbl1">Customer D [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CustomerDMember" xlink:to="mpaa_CustomerDMember_lbl1" xlink:title="label: CustomerDMember to mpaa_CustomerDMember_lbl1" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_CustomerEMember" xlink:label="CustomerEMember" xlink:title="CustomerEMember" />
    <link:label xlink:type="resource" xlink:label="mpaa_CustomerEMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_CustomerEMember_lbl" xml:lang="en-US" id="mpaa_CustomerEMember_lbl">Represents the customer with the fifth largest percentage of net sales and accounts receivable.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CustomerEMember" xlink:to="mpaa_CustomerEMember_lbl" xlink:title="label: CustomerEMember to mpaa_CustomerEMember_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_CustomerEMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_CustomerEMember_lbl1" xml:lang="en-US" id="mpaa_CustomerEMember_lbl1">Customer E [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CustomerEMember" xlink:to="mpaa_CustomerEMember_lbl1" xlink:title="label: CustomerEMember to mpaa_CustomerEMember_lbl1" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_CustomerBMember" xlink:label="CustomerBMember" xlink:title="CustomerBMember" />
    <link:label xlink:type="resource" xlink:label="mpaa_CustomerBMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_CustomerBMember_lbl" xml:lang="en-US" id="mpaa_CustomerBMember_lbl">Represents the customer with the second largest percentage of net sales and accounts receivable.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CustomerBMember" xlink:to="mpaa_CustomerBMember_lbl" xlink:title="label: CustomerBMember to mpaa_CustomerBMember_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_CustomerBMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_CustomerBMember_lbl1" xml:lang="en-US" id="mpaa_CustomerBMember_lbl1">Customer B [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CustomerBMember" xlink:to="mpaa_CustomerBMember_lbl1" xlink:title="label: CustomerBMember to mpaa_CustomerBMember_lbl1" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_CustomerAMember" xlink:label="CustomerAMember" xlink:title="CustomerAMember" />
    <link:label xlink:type="resource" xlink:label="mpaa_CustomerAMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_CustomerAMember_lbl" xml:lang="en-US" id="mpaa_CustomerAMember_lbl">Represents the customer with the largest percentage of net sales and accounts receivable.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CustomerAMember" xlink:to="mpaa_CustomerAMember_lbl" xlink:title="label: CustomerAMember to mpaa_CustomerAMember_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_CustomerAMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_CustomerAMember_lbl1" xml:lang="en-US" id="mpaa_CustomerAMember_lbl1">Customer A [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CustomerAMember" xlink:to="mpaa_CustomerAMember_lbl1" xlink:title="label: CustomerAMember to mpaa_CustomerAMember_lbl1" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_RotatingElectricalProductsMember" xlink:label="RotatingElectricalProductsMember" xlink:title="RotatingElectricalProductsMember" />
    <link:label xlink:type="resource" xlink:label="mpaa_RotatingElectricalProductsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_RotatingElectricalProductsMember_lbl" xml:lang="en-US" id="mpaa_RotatingElectricalProductsMember_lbl">Refers to the rotating electrical products that are sold by the entity.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RotatingElectricalProductsMember" xlink:to="mpaa_RotatingElectricalProductsMember_lbl" xlink:title="label: RotatingElectricalProductsMember to mpaa_RotatingElectricalProductsMember_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_RotatingElectricalProductsMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_RotatingElectricalProductsMember_lbl1" xml:lang="en-US" id="mpaa_RotatingElectricalProductsMember_lbl1">Rotating Electrical Products [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RotatingElectricalProductsMember" xlink:to="mpaa_RotatingElectricalProductsMember_lbl1" xlink:title="label: RotatingElectricalProductsMember to mpaa_RotatingElectricalProductsMember_lbl1" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_CustomerCMember" xlink:label="CustomerCMember" xlink:title="CustomerCMember" />
    <link:label xlink:type="resource" xlink:label="mpaa_CustomerCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_CustomerCMember_lbl" xml:lang="en-US" id="mpaa_CustomerCMember_lbl">Represents the customer with the third largest percentage of net sales and accounts receivable.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CustomerCMember" xlink:to="mpaa_CustomerCMember_lbl" xlink:title="label: CustomerCMember to mpaa_CustomerCMember_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_CustomerCMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_CustomerCMember_lbl1" xml:lang="en-US" id="mpaa_CustomerCMember_lbl1">Customer C [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CustomerCMember" xlink:to="mpaa_CustomerCMember_lbl1" xlink:title="label: CustomerCMember to mpaa_CustomerCMember_lbl1" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_WXAgreementAbstract" xlink:label="WXAgreementAbstract" xlink:title="WXAgreementAbstract" />
    <link:label xlink:type="resource" xlink:label="mpaa_WXAgreementAbstract_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_WXAgreementAbstract_lbl1" xml:lang="en-US" id="mpaa_WXAgreementAbstract_lbl1">WX Agreement [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="WXAgreementAbstract" xlink:to="mpaa_WXAgreementAbstract_lbl1" xlink:title="label: WXAgreementAbstract to mpaa_WXAgreementAbstract_lbl1" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_ReferenceInterestRateUnderOption1Floor" xlink:label="ReferenceInterestRateUnderOption1Floor" xlink:title="ReferenceInterestRateUnderOption1Floor" />
    <link:label xlink:type="resource" xlink:label="mpaa_ReferenceInterestRateUnderOption1Floor_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_ReferenceInterestRateUnderOption1Floor_lbl" xml:lang="en-US" id="mpaa_ReferenceInterestRateUnderOption1Floor_lbl">The floor to which the reference rate (e.g., LIBOR) is subject.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ReferenceInterestRateUnderOption1Floor" xlink:to="mpaa_ReferenceInterestRateUnderOption1Floor_lbl" xlink:title="label: ReferenceInterestRateUnderOption1Floor to mpaa_ReferenceInterestRateUnderOption1Floor_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_ReferenceInterestRateUnderOption1Floor_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_ReferenceInterestRateUnderOption1Floor_lbl1" xml:lang="en-US" id="mpaa_ReferenceInterestRateUnderOption1Floor_lbl1">Reference interest rate under option 1, floor</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ReferenceInterestRateUnderOption1Floor" xlink:to="mpaa_ReferenceInterestRateUnderOption1Floor_lbl1" xlink:title="label: ReferenceInterestRateUnderOption1Floor to mpaa_ReferenceInterestRateUnderOption1Floor_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_ReferenceInterestRateUnderOption1Floor_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="mpaa_ReferenceInterestRateUnderOption1Floor_lbl2" xml:lang="en-US" id="mpaa_ReferenceInterestRateUnderOption1Floor_lbl2">Reference interest rate under option 1, floor</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ReferenceInterestRateUnderOption1Floor" xlink:to="mpaa_ReferenceInterestRateUnderOption1Floor_lbl2" xlink:title="label: ReferenceInterestRateUnderOption1Floor to mpaa_ReferenceInterestRateUnderOption1Floor_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_FairValueInputsProbabilityOfFutureEvent" xlink:label="FairValueInputsProbabilityOfFutureEvent" xlink:title="FairValueInputsProbabilityOfFutureEvent" />
    <link:label xlink:type="resource" xlink:label="mpaa_FairValueInputsProbabilityOfFutureEvent_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_FairValueInputsProbabilityOfFutureEvent_lbl" xml:lang="en-US" id="mpaa_FairValueInputsProbabilityOfFutureEvent_lbl">Percentage of likelihood of a future event, used as an input to measure fair value.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueInputsProbabilityOfFutureEvent" xlink:to="mpaa_FairValueInputsProbabilityOfFutureEvent_lbl" xlink:title="label: FairValueInputsProbabilityOfFutureEvent to mpaa_FairValueInputsProbabilityOfFutureEvent_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_FairValueInputsProbabilityOfFutureEvent_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_FairValueInputsProbabilityOfFutureEvent_lbl1" xml:lang="en-US" id="mpaa_FairValueInputsProbabilityOfFutureEvent_lbl1">Fair Value Inputs, Probability of Future Event</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueInputsProbabilityOfFutureEvent" xlink:to="mpaa_FairValueInputsProbabilityOfFutureEvent_lbl1" xlink:title="label: FairValueInputsProbabilityOfFutureEvent to mpaa_FairValueInputsProbabilityOfFutureEvent_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_FairValueInputsProbabilityOfFutureEvent_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="mpaa_FairValueInputsProbabilityOfFutureEvent_lbl2" xml:lang="en-US" id="mpaa_FairValueInputsProbabilityOfFutureEvent_lbl2">Subsequent financing probability</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueInputsProbabilityOfFutureEvent" xlink:to="mpaa_FairValueInputsProbabilityOfFutureEvent_lbl2" xlink:title="label: FairValueInputsProbabilityOfFutureEvent to mpaa_FairValueInputsProbabilityOfFutureEvent_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_AllowablePaymentsOfDividendsInPeriodUnderCreditFacility" xlink:label="AllowablePaymentsOfDividendsInPeriodUnderCreditFacility" xlink:title="AllowablePaymentsOfDividendsInPeriodUnderCreditFacility" />
    <link:label xlink:type="resource" xlink:label="mpaa_AllowablePaymentsOfDividendsInPeriodUnderCreditFacility_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_AllowablePaymentsOfDividendsInPeriodUnderCreditFacility_lbl" xml:lang="en-US" id="mpaa_AllowablePaymentsOfDividendsInPeriodUnderCreditFacility_lbl">Under the credit facility agreement, the entity is permitted an allowable dividend payment amount per calendar year, subject to a minimum availability threshold and pro forma compliance with financial covenants.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AllowablePaymentsOfDividendsInPeriodUnderCreditFacility" xlink:to="mpaa_AllowablePaymentsOfDividendsInPeriodUnderCreditFacility_lbl" xlink:title="label: AllowablePaymentsOfDividendsInPeriodUnderCreditFacility to mpaa_AllowablePaymentsOfDividendsInPeriodUnderCreditFacility_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_AllowablePaymentsOfDividendsInPeriodUnderCreditFacility_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_AllowablePaymentsOfDividendsInPeriodUnderCreditFacility_lbl1" xml:lang="en-US" id="mpaa_AllowablePaymentsOfDividendsInPeriodUnderCreditFacility_lbl1">Allowable Payments of Dividends in Period Under Credit Facility</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AllowablePaymentsOfDividendsInPeriodUnderCreditFacility" xlink:to="mpaa_AllowablePaymentsOfDividendsInPeriodUnderCreditFacility_lbl1" xlink:title="label: AllowablePaymentsOfDividendsInPeriodUnderCreditFacility to mpaa_AllowablePaymentsOfDividendsInPeriodUnderCreditFacility_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_AllowablePaymentsOfDividendsInPeriodUnderCreditFacility_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="mpaa_AllowablePaymentsOfDividendsInPeriodUnderCreditFacility_lbl2" xml:lang="en-US" id="mpaa_AllowablePaymentsOfDividendsInPeriodUnderCreditFacility_lbl2">Dividend payments, annual maximum amount permitted</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AllowablePaymentsOfDividendsInPeriodUnderCreditFacility" xlink:to="mpaa_AllowablePaymentsOfDividendsInPeriodUnderCreditFacility_lbl2" xlink:title="label: AllowablePaymentsOfDividendsInPeriodUnderCreditFacility to mpaa_AllowablePaymentsOfDividendsInPeriodUnderCreditFacility_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_ParentCompanyCreditAgreementMember" xlink:label="ParentCompanyCreditAgreementMember" xlink:title="ParentCompanyCreditAgreementMember" />
    <link:label xlink:type="resource" xlink:label="mpaa_ParentCompanyCreditAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_ParentCompanyCreditAgreementMember_lbl" xml:lang="en-US" id="mpaa_ParentCompanyCreditAgreementMember_lbl">Represents a company credit arrangement with its lenders under which borrowings can be made up to a specific amount.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ParentCompanyCreditAgreementMember" xlink:to="mpaa_ParentCompanyCreditAgreementMember_lbl" xlink:title="label: ParentCompanyCreditAgreementMember to mpaa_ParentCompanyCreditAgreementMember_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_ParentCompanyCreditAgreementMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_ParentCompanyCreditAgreementMember_lbl1" xml:lang="en-US" id="mpaa_ParentCompanyCreditAgreementMember_lbl1">Parent Company Credit Agreement [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ParentCompanyCreditAgreementMember" xlink:to="mpaa_ParentCompanyCreditAgreementMember_lbl1" xlink:title="label: ParentCompanyCreditAgreementMember to mpaa_ParentCompanyCreditAgreementMember_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_ParentCompanyCreditAgreementMember_lbl2" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:title="mpaa_ParentCompanyCreditAgreementMember_lbl2" xml:lang="en-US" id="mpaa_ParentCompanyCreditAgreementMember_lbl2">Credit Facility [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ParentCompanyCreditAgreementMember" xlink:to="mpaa_ParentCompanyCreditAgreementMember_lbl2" xlink:title="label: ParentCompanyCreditAgreementMember to mpaa_ParentCompanyCreditAgreementMember_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_StrategicCooperationAgreementMember" xlink:label="StrategicCooperationAgreementMember" xlink:title="StrategicCooperationAgreementMember" />
    <link:label xlink:type="resource" xlink:label="mpaa_StrategicCooperationAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_StrategicCooperationAgreementMember_lbl" xml:lang="en-US" id="mpaa_StrategicCooperationAgreementMember_lbl">Contractual arrangement with a supplier under which purchases can be made on credit up to a specific amount.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StrategicCooperationAgreementMember" xlink:to="mpaa_StrategicCooperationAgreementMember_lbl" xlink:title="label: StrategicCooperationAgreementMember to mpaa_StrategicCooperationAgreementMember_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_StrategicCooperationAgreementMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_StrategicCooperationAgreementMember_lbl1" xml:lang="en-US" id="mpaa_StrategicCooperationAgreementMember_lbl1">Strategic Cooperation Agreement [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StrategicCooperationAgreementMember" xlink:to="mpaa_StrategicCooperationAgreementMember_lbl1" xlink:title="label: StrategicCooperationAgreementMember to mpaa_StrategicCooperationAgreementMember_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_StrategicCooperationAgreementMember_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="mpaa_StrategicCooperationAgreementMember_lbl2" xml:lang="en-US" id="mpaa_StrategicCooperationAgreementMember_lbl2">WX Agreement [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StrategicCooperationAgreementMember" xlink:to="mpaa_StrategicCooperationAgreementMember_lbl2" xlink:title="label: StrategicCooperationAgreementMember to mpaa_StrategicCooperationAgreementMember_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_CommercialLetterOfCreditMember" xlink:label="CommercialLetterOfCreditMember" xlink:title="CommercialLetterOfCreditMember" />
    <link:label xlink:type="resource" xlink:label="mpaa_CommercialLetterOfCreditMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_CommercialLetterOfCreditMember_lbl" xml:lang="en-US" id="mpaa_CommercialLetterOfCreditMember_lbl">A document typically issued by a financial institution which acts as a guarantee of payment to a beneficiary, or as the source of payment for a specific transaction (for example, wiring funds to a foreign exporter if and when specified merchandise is accepted pursuant to the terms of the letter of credit).</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommercialLetterOfCreditMember" xlink:to="mpaa_CommercialLetterOfCreditMember_lbl" xlink:title="label: CommercialLetterOfCreditMember to mpaa_CommercialLetterOfCreditMember_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_CommercialLetterOfCreditMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_CommercialLetterOfCreditMember_lbl1" xml:lang="en-US" id="mpaa_CommercialLetterOfCreditMember_lbl1">Commercial Letter of Credit [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommercialLetterOfCreditMember" xlink:to="mpaa_CommercialLetterOfCreditMember_lbl1" xlink:title="label: CommercialLetterOfCreditMember to mpaa_CommercialLetterOfCreditMember_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_CommercialLetterOfCreditMember_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="mpaa_CommercialLetterOfCreditMember_lbl2" xml:lang="en-US" id="mpaa_CommercialLetterOfCreditMember_lbl2">Commercial Letters of Credit [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommercialLetterOfCreditMember" xlink:to="mpaa_CommercialLetterOfCreditMember_lbl2" xlink:title="label: CommercialLetterOfCreditMember to mpaa_CommercialLetterOfCreditMember_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_ReferenceRateMember" xlink:label="ReferenceRateMember" xlink:title="ReferenceRateMember" />
    <link:label xlink:type="resource" xlink:label="mpaa_ReferenceRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_ReferenceRateMember_lbl" xml:lang="en-US" id="mpaa_ReferenceRateMember_lbl">A reference rate at which a bank borrows funds from other banks.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ReferenceRateMember" xlink:to="mpaa_ReferenceRateMember_lbl" xlink:title="label: ReferenceRateMember to mpaa_ReferenceRateMember_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_ReferenceRateMember_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_ReferenceRateMember_lbl1" xml:lang="en-US" id="mpaa_ReferenceRateMember_lbl1">Reference Rate [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ReferenceRateMember" xlink:to="mpaa_ReferenceRateMember_lbl1" xlink:title="label: ReferenceRateMember to mpaa_ReferenceRateMember_lbl1" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_DebtInstrumentBasisSpreadOnVariableRateOption2" xlink:label="DebtInstrumentBasisSpreadOnVariableRateOption2" xlink:title="DebtInstrumentBasisSpreadOnVariableRateOption2" />
    <link:label xlink:type="resource" xlink:label="mpaa_DebtInstrumentBasisSpreadOnVariableRateOption2_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_DebtInstrumentBasisSpreadOnVariableRateOption2_lbl" xml:lang="en-US" id="mpaa_DebtInstrumentBasisSpreadOnVariableRateOption2_lbl">The percentage points added to the reference rate to compute the variable rate on the debt instrument under option two of the credit agreement.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentBasisSpreadOnVariableRateOption2" xlink:to="mpaa_DebtInstrumentBasisSpreadOnVariableRateOption2_lbl" xlink:title="label: DebtInstrumentBasisSpreadOnVariableRateOption2 to mpaa_DebtInstrumentBasisSpreadOnVariableRateOption2_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_DebtInstrumentBasisSpreadOnVariableRateOption2_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_DebtInstrumentBasisSpreadOnVariableRateOption2_lbl1" xml:lang="en-US" id="mpaa_DebtInstrumentBasisSpreadOnVariableRateOption2_lbl1">Debt Instrument, Basis Spread on Variable Rate, Option 2</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentBasisSpreadOnVariableRateOption2" xlink:to="mpaa_DebtInstrumentBasisSpreadOnVariableRateOption2_lbl1" xlink:title="label: DebtInstrumentBasisSpreadOnVariableRateOption2 to mpaa_DebtInstrumentBasisSpreadOnVariableRateOption2_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_DebtInstrumentBasisSpreadOnVariableRateOption2_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="mpaa_DebtInstrumentBasisSpreadOnVariableRateOption2_lbl2" xml:lang="en-US" id="mpaa_DebtInstrumentBasisSpreadOnVariableRateOption2_lbl2">Interest rate above base rate under option 2</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentBasisSpreadOnVariableRateOption2" xlink:to="mpaa_DebtInstrumentBasisSpreadOnVariableRateOption2_lbl2" xlink:title="label: DebtInstrumentBasisSpreadOnVariableRateOption2 to mpaa_DebtInstrumentBasisSpreadOnVariableRateOption2_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_DocumentAndEntityInformationAbstract" xlink:label="DocumentAndEntityInformationAbstract" xlink:title="DocumentAndEntityInformationAbstract" />
    <link:label xlink:type="resource" xlink:label="mpaa_DocumentAndEntityInformationAbstract_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_DocumentAndEntityInformationAbstract_lbl1" xml:lang="en-US" id="mpaa_DocumentAndEntityInformationAbstract_lbl1">Document and Entity Information [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DocumentAndEntityInformationAbstract" xlink:to="mpaa_DocumentAndEntityInformationAbstract_lbl1" xlink:title="label: DocumentAndEntityInformationAbstract to mpaa_DocumentAndEntityInformationAbstract_lbl1" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_NewAccountingPronouncementsNotYetAdoptedPolicyPolicyTextBlock" xlink:label="NewAccountingPronouncementsNotYetAdoptedPolicyPolicyTextBlock" xlink:title="NewAccountingPronouncementsNotYetAdoptedPolicyPolicyTextBlock" />
    <link:label xlink:type="resource" xlink:label="mpaa_NewAccountingPronouncementsNotYetAdoptedPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_NewAccountingPronouncementsNotYetAdoptedPolicyPolicyTextBlock_lbl" xml:lang="en-US" id="mpaa_NewAccountingPronouncementsNotYetAdoptedPolicyPolicyTextBlock_lbl">Disclosure of accounting policy pertaining to new accounting pronouncements not yet adopted recently and may impact the entity's financial reporting. Includes, but is not limited to, quantification of the expected or actual impact.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NewAccountingPronouncementsNotYetAdoptedPolicyPolicyTextBlock" xlink:to="mpaa_NewAccountingPronouncementsNotYetAdoptedPolicyPolicyTextBlock_lbl" xlink:title="label: NewAccountingPronouncementsNotYetAdoptedPolicyPolicyTextBlock to mpaa_NewAccountingPronouncementsNotYetAdoptedPolicyPolicyTextBlock_lbl" />
    <link:label xlink:type="resource" xlink:label="mpaa_NewAccountingPronouncementsNotYetAdoptedPolicyPolicyTextBlock_lbl1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="mpaa_NewAccountingPronouncementsNotYetAdoptedPolicyPolicyTextBlock_lbl1" xml:lang="en-US" id="mpaa_NewAccountingPronouncementsNotYetAdoptedPolicyPolicyTextBlock_lbl1">New Accounting Pronouncements Not Yet Adopted, Policy [Policy Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NewAccountingPronouncementsNotYetAdoptedPolicyPolicyTextBlock" xlink:to="mpaa_NewAccountingPronouncementsNotYetAdoptedPolicyPolicyTextBlock_lbl1" xlink:title="label: NewAccountingPronouncementsNotYetAdoptedPolicyPolicyTextBlock to mpaa_NewAccountingPronouncementsNotYetAdoptedPolicyPolicyTextBlock_lbl1" />
    <link:label xlink:type="resource" xlink:label="mpaa_NewAccountingPronouncementsNotYetAdoptedPolicyPolicyTextBlock_lbl2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="mpaa_NewAccountingPronouncementsNotYetAdoptedPolicyPolicyTextBlock_lbl2" xml:lang="en-US" id="mpaa_NewAccountingPronouncementsNotYetAdoptedPolicyPolicyTextBlock_lbl2">New Accounting Pronouncements Not Yet Adopted</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NewAccountingPronouncementsNotYetAdoptedPolicyPolicyTextBlock" xlink:to="mpaa_NewAccountingPronouncementsNotYetAdoptedPolicyPolicyTextBlock_lbl2" xlink:title="label: NewAccountingPronouncementsNotYetAdoptedPolicyPolicyTextBlock to mpaa_NewAccountingPronouncementsNotYetAdoptedPolicyPolicyTextBlock_lbl2" />
    <link:loc xlink:type="locator" xlink:href="mpaa-20171231.xsd#mpaa_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherAssetsNet" xlink:label="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherAssetsNet" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherAssetsNet" />
    <link:label xlink:type="resource" xlink:label="mpaa_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherAssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="mpaa_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherAssetsNet_lbl" xml:lang="en-US" id="mpaa_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherAssetsNet_lbl">Amount of other current and non-current net assets acquired at the acquisition date.</link:label>
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