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        <link:definition>080700 - Disclosure - Inventories (Tables)</link:definition>
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        <link:definition>080800 - Disclosure - Acquired Intangible Assets (Tables)</link:definition>
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        <link:definition>081200 - Disclosure - Employee Benefits (Tables)</link:definition>
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        <link:definition>081500 - Disclosure - Industry Segments (Tables)</link:definition>
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        <link:definition>081600 - Disclosure - Commitments and Contingencies (Tables)</link:definition>
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        <link:definition>090200 - Disclosure - Summary of Significant Accounting Policies (Details)</link:definition>
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        <link:definition>090500 - Disclosure - Restructuring and Integration Expenses (Details)</link:definition>
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        <link:definition>090600 - Disclosure - Sale of Receivables (Details)</link:definition>
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        <link:definition>090700 - Disclosure - Inventories (Details)</link:definition>
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        <link:definition>090800 - Disclosure - Acquired Intangible Assets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
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        <link:definition>090900 - Disclosure - Credit Facilities and Long-Term Debt, Total Debt Outstanding (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
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        <link:definition>090902 - Disclosure - Credit Facilities and Long-Term Debt, Revolving Credit Facility (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
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        <link:definition>090902 - Disclosure - Credit Facilities and Long-Term Debt, Total Debt Outstanding (Details) Calc 2</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
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        <link:definition>090904 - Disclosure - Credit Facilities and Long-Term Debt, Polish Overdraft Facility (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
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        <link:definition>090906 - Disclosure - Credit Facilities and Long-Term Debt, Deferred Financing Costs (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
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        <link:definition>091000 - Disclosure - Accumulated Other Comprehensive Income (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
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        <link:definition>091002 - Disclosure - Accumulated Other Comprehensive Income, Reclassified (Details)</link:definition>
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        <link:definition>091100 - Disclosure - Stock-Based Compensation Plans (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
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        <!--Parent Role: Employee Benefits-->
        <link:definition>091200 - Disclosure - Employee Benefits (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://smpcorp.com/role/EarningsPerShareDetails" id="EarningsPerShareDetails">
        <!--Parent Role: Earnings Per Share-->
        <link:definition>091400 - Disclosure - Earnings Per Share (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://smpcorp.com/role/IndustrySegmentsDetails" id="IndustrySegmentsDetails">
        <!--Parent Role: Industry Segments-->
        <link:definition>091500 - Disclosure - Industry Segments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://smpcorp.com/role/CommitmentsAndContingenciesDetails" id="CommitmentsAndContingenciesDetails">
        <!--Parent Role: Commitments and Contingencies-->
        <link:definition>091600 - Disclosure - Commitments and Contingencies (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
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