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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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 dxmcYybNKluNiOwYJMJTDA==

<SEC-DOCUMENT>0001140110-03-000017.txt : 20030519
<SEC-HEADER>0001140110-03-000017.hdr.sgml : 20030519
<ACCEPTANCE-DATETIME>20030519111800
ACCESSION NUMBER:		0001140110-03-000017
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030515
FILED AS OF DATE:		20030519

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			OREILLY KEVIN
		CENTRAL INDEX KEY:			0001160614

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-10702
		FILM NUMBER:		03709957

	BUSINESS ADDRESS:	
		STREET 1:		TEREX CORP
		STREET 2:		500 POST RD. EAST SUITE 320
		CITY:			WESTPORT
		STATE:			CT
		ZIP:			06880

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TEREX CORP
		CENTRAL INDEX KEY:			0000097216
		STANDARD INDUSTRIAL CLASSIFICATION:	INDUSTRIAL TRUCKS TRACTORS TRAILERS & STACKERS [3537]
		IRS NUMBER:				341531521
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		500 POST ROAD EAST
		STREET 2:		STE 320
		CITY:			WESTPORT
		STATE:			CT
		ZIP:			06880
		BUSINESS PHONE:		2032227170

	MAIL ADDRESS:	
		STREET 1:		500 POST ROAD EAST
		STREET 2:		STE 320
		CITY:			WESTPORT
		STATE:			CT
		ZIP:			06880

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	BLACK MAMMOTH CONSOLIDATED MINING CO
		DATE OF NAME CHANGE:	19671002
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>

<ownershipDocument>

    <documentType>4</documentType>

    <periodOfReport>2003-05-15</periodOfReport>


    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000097216</issuerCik>
        <issuerName>TEREX CORP</issuerName>
        <issuerTradingSymbol>TEX</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001160614</rptOwnerCik>
            <rptOwnerName>OREILLY KEVIN</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>  </rptOwnerStreet1>
            <rptOwnerStreet2>  </rptOwnerStreet2>
            <rptOwnerCity>  </rptOwnerCity>
            <rptOwnerState>  </rptOwnerState>
            <rptOwnerZipCode>  </rptOwnerZipCode>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>VP, Inv. Relations &amp; Corp Com.</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeSecurity>
        <securityTitle>
            <value>Commn Stock, par value $.01</value>
        </securityTitle>
        <transactionDate>
            <value>2003-05-15</value>
        </transactionDate>
        <transactionCoding>
            <transactionFormType>4</transactionFormType>
            <transactionCode>P</transactionCode>
            <equitySwapInvolved>0</equitySwapInvolved>
        </transactionCoding>
        <transactionTimeliness>
            <value></value>
        </transactionTimeliness>
        <transactionAmounts>
            <transactionShares>
                <value>15</value>
                <footnoteId id="F1"/>
            </transactionShares>
            <transactionValue>
                <value>18.72</value>
            </transactionValue>
            <transactionAcquiredDisposedCode>
                <value>A</value>
            </transactionAcquiredDisposedCode>
        </transactionAmounts>
        <postTransactionAmounts>
            <sharesOwnedFollowingTransaction>
                <value>8629</value>
                <footnoteId id="F2"/>
            </sharesOwnedFollowingTransaction>
        </postTransactionAmounts>
        <ownershipNature>
            <directOrIndirectOwnership>
                <value>D</value>
            </directOrIndirectOwnership>
        </ownershipNature>
    </nonDerivativeSecurity>

    <nonDerivativeSecurity>
        <securityTitle>
            <value>Common Stock, par value $.01</value>
        </securityTitle>
        <transactionDate>
            <value>2003-05-15</value>
        </transactionDate>
        <transactionCoding>
            <transactionFormType>4</transactionFormType>
            <transactionCode>I</transactionCode>
            <equitySwapInvolved>0</equitySwapInvolved>
        </transactionCoding>
        <transactionTimeliness>
            <value></value>
        </transactionTimeliness>
        <transactionAmounts>
            <transactionShares>
                <value>0</value>
            </transactionShares>
            <transactionValue>
                <value>0</value>
            </transactionValue>
            <transactionAcquiredDisposedCode>
                <value>A</value>
            </transactionAcquiredDisposedCode>
        </transactionAmounts>
        <postTransactionAmounts>
            <sharesOwnedFollowingTransaction>
                <value>1424</value>
                <footnoteId id="F2"/>
            </sharesOwnedFollowingTransaction>
        </postTransactionAmounts>
        <ownershipNature>
            <directOrIndirectOwnership>
                <value>I</value>
            </directOrIndirectOwnership>
            <natureOfOwnership>
                <value>401(k) plan</value>
            </natureOfOwnership>
        </ownershipNature>
    </nonDerivativeSecurity>

    <footnotes>
        <footnote id="F1">Shares purchased through payroll deductions through the COmpany's employee stock purchase plan.</footnote>
        <footnote id="F2">Represents number of shares beneficially owned as of May 15, 2003.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Kevin O'Reilly</signatureName>
        <signatureDate>2003-05-19</signatureDate>
    </ownerSignature>

</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----