-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
 OfZ1kyayFOcgSLczoNH/raFptlHw6RWxDbhypxvEx5+izlLXLKbiQxHK3vbI/D2K
 Cy3AudpxzX5LfpL7hgbXgw==

<SEC-DOCUMENT>0000075362-03-000182.txt : 20031003
<SEC-HEADER>0000075362-03-000182.hdr.sgml : 20031003
<ACCEPTANCE-DATETIME>20031003120933
ACCESSION NUMBER:		0000075362-03-000182
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20031001
FILED AS OF DATE:		20031003

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MORIE GORDON GLEN
		CENTRAL INDEX KEY:			0001191927

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-14817
		FILM NUMBER:		03926970

	BUSINESS ADDRESS:	
		STREET 1:		PACCAR INC
		STREET 2:		P.O. BOX 1518
		CITY:			BELLEVUE
		STATE:			WA
		ZIP:			98009

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PACCAR INC
		CENTRAL INDEX KEY:			0000075362
		STANDARD INDUSTRIAL CLASSIFICATION:	MOTOR VEHICLES & PASSENGER CAR BODIES [3711]
		IRS NUMBER:				910351110
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		PACCAR BUILDING
		STREET 2:		777 106TH AVENUE NE
		CITY:			BELLEVUE
		STATE:			WA
		ZIP:			98004
		BUSINESS PHONE:		425 468 7383

	MAIL ADDRESS:	
		STREET 1:		PACCAR BUILDING
		STREET 2:		777 106TH AVENUE NE
		CITY:			BELLEVUE
		STATE:			WA
		ZIP:			98004

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	PACIFIC CAR & FOUNDRY CO
		DATE OF NAME CHANGE:	19720707
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>
    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType><periodOfReport>2003-10-01</periodOfReport>
    <issuer>
        <issuerCik>0000075362</issuerCik>
        <issuerName>PACCAR INC</issuerName>
        <issuerTradingSymbol>PCAR</issuerTradingSymbol></issuer><reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001191927</rptOwnerCik>
            <rptOwnerName>MORIE GORDON GLEN</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>777 106TH AVENUE NE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>BELLEVUE</rptOwnerCity>
            <rptOwnerState>WA</rptOwnerState>
            <rptOwnerZipCode>98004</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
<isDirector>0</isDirector><isOfficer>1</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther><officerTitle>VP &amp; GENERAL COUNSEL</officerTitle></reportingOwnerRelationship></reportingOwner><nonDerivativeTable><nonDerivativeTransaction><securityTitle><value>COMMON STOCK (SIP)</value></securityTitle><transactionDate><value>2003-10-01</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>J</transactionCode><equitySwapInvolved>0</equitySwapInvolved><footnoteId id="F1"/></transactionCoding><transactionAmounts><transactionShares><value>47.7</value></transactionShares><transactionPricePerShare><value>85.91</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>18678</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrI
ndirectOwnership><natureOfOwnership><value/></natureOfOwnership></ownershipNature></nonDerivativeTransaction><nonDerivativeHolding><securityTitle><value>COMMON STOCK (ESPP)</value><footnoteId id="F2"/></securityTitle><postTransactionAmounts><sharesOwnedFollowingTransaction><value>1331.0</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value/></natureOfOwnership></ownershipNature></nonDerivativeHolding></nonDerivativeTable><derivativeTable><derivativeHolding><securityTitle><value>STOCK OPTION</value></securityTitle><conversionOrExercisePrice><value>27.83</value></conversionOrExercisePrice><exerciseDate><value>2003-01-01</value></exerciseDate><expirationDate><value>2010-01-25</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>COMMON STOCK</value></underlyingSecurityTitle><underlyingSecurityShares><value>6783</value></underlyingSecurityShares></underlyingSecurity>
<postTransactionAmounts><sharesOwnedFollowingTransaction><value>6783</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value/></natureOfOwnership></ownershipNature></derivativeHolding><derivativeHolding><securityTitle><value>STOCK OPTION</value></securityTitle><conversionOrExercisePrice><value>34.42</value></conversionOrExercisePrice><exerciseDate><value>2004-01-01</value></exerciseDate><expirationDate><value>2011-01-24</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>COMMON STOCK</value></underlyingSecurityTitle><underlyingSecurityShares><value>11334</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>11334</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value/></nature
OfOwnership></ownershipNature></derivativeHolding><derivativeHolding><securityTitle><value>STOCK OPTION</value></securityTitle><conversionOrExercisePrice><value>42.31</value></conversionOrExercisePrice><exerciseDate><value>2005-01-01</value></exerciseDate><expirationDate><value>2012-01-23</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>COMMON STOCK</value></underlyingSecurityTitle><underlyingSecurityShares><value>9427</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>9427</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value/></natureOfOwnership></ownershipNature></derivativeHolding><derivativeHolding><securityTitle><value>STOCK OPTION</value></securityTitle><conversionOrExercisePrice><value>47.10</value></conversionOrExercisePrice><exerciseDate><value>2006-01-01</value></exerciseDate><exp
irationDate><value>2013-01-15</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>COMMON STOCK</value></underlyingSecurityTitle><underlyingSecurityShares><value>8643</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>8643</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value/></natureOfOwnership></ownershipNature></derivativeHolding></derivativeTable><footnotes><footnote id="F1">September 5, 2003 dividend on PACCAR Savings Investment Plan (SIP) shares reinvested pursuant to SIP.  SIP information based on most recent report from SIP Trustee - received October 1, 2003.</footnote><footnote id="F2">Shares held in the PACCAR Inc Employee Stock Purchase Plan (ESPP).</footnote></footnotes><remarks>Fractional shares rounded to nearest 1/10.</remarks><ownerSignature><signatureName>G. Glen Morie by B. N.
 Holliday (POA)</signatureName><signatureDate>2003-10-02</signatureDate></ownerSignature></ownershipDocument>

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</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>3
<FILENAME>morie9402.htm
<TEXT>
<HTML><BODY><PRE>POWER OF ATTORNEY







 I, Gordon Glen Morie, hereby appoint and constitute Janice M. D'Amato and Bruce N. Holliday, acting individually, my true and lawful attorney-in-fact with full power to sign for me and in my name a Statement of Changes of Beneficial Ownership of Securities issued by PACCAR Inc on Form 4 and Form 5 to be filed with the Securities and Exchange Commission under the Securities Exchange Act of 1934, as amended, together with any and all amendments thereto.  This power of attorney shall remain in effect until December 31, 2007, unless earlier terminated by the undersigned in writing.



 IN WITNESS WHEREOF, the undersigned has executed this power of attorney this 5th day of September, 2002.





/s/ G. Glen Morie

Gordon Glen Morie



</PRE></BODY></HTML>

</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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