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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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<SEC-DOCUMENT>0000067347-04-000244.txt : 20041021
<SEC-HEADER>0000067347-04-000244.hdr.sgml : 20041021
<ACCEPTANCE-DATETIME>20041021140709
ACCESSION NUMBER:		0000067347-04-000244
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20041020
FILED AS OF DATE:		20041021
DATE AS OF CHANGE:		20041021

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MODINE MANUFACTURING CO
		CENTRAL INDEX KEY:			0000067347
		STANDARD INDUSTRIAL CLASSIFICATION:	MOTOR VEHICLE PARTS & ACCESSORIES [3714]
		IRS NUMBER:				390482000
		STATE OF INCORPORATION:			WI
		FISCAL YEAR END:			0331

	BUSINESS ADDRESS:	
		STREET 1:		1500 DEKOVEN AVE
		CITY:			RACINE
		STATE:			WI
		ZIP:			53403
		BUSINESS PHONE:		2626361200

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			HARPER CARLTON C
		CENTRAL INDEX KEY:			0001185601

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-01373
		FILM NUMBER:		041089375

	BUSINESS ADDRESS:	
		STREET 1:		MODINE MANUFACTURING CO
		STREET 2:		1500 DEKOVEN AVE
		CITY:			RACINE
		STATE:			WI
		ZIP:			53403
		BUSINESS PHONE:		2626361464
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2004-10-20</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000067347</issuerCik>
        <issuerName>MODINE MANUFACTURING CO</issuerName>
        <issuerTradingSymbol>MOD</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001185601</rptOwnerCik>
            <rptOwnerName>HARPER CARLTON C</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1></rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity></rptOwnerCity>
            <rptOwnerState></rptOwnerState>
            <rptOwnerZipCode></rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Information Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Modine common stock</value>
            </securityTitle>
            <transactionDate>
                <value>2004-10-20</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>7.0805</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>30.4814</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>15013.4425</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">This total includes 1,206.3239 units of Modine common stock indirectly held in the Registrant's Modine 401(k) Retirement Plan account, 716.1726 units of Modine common stock indirectly held in the Registrant's Modine Deferred Compensation PLan account and 873.3978 units of Modine common stock indirectly held in the Registrant's Modine Stock Fund account.  The Registrant's Deferred Compensation PLan account was decreased by 0.4258 units due to the trustee's maintenance fees for the Deferred Compensation PLan account.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/D. R. Zakos, Attorney-in-Fact for C.C. Harper</signatureName>
        <signatureDate>2004-10-21</signatureDate>
    </ownerSignature>
</ownershipDocument>

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