-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 FZGg9xaQKD4JFCSX/SBrhXRtwj4sq8wu6x5NIRNF/vUULVLpk/Nitxx3dCfx0lsW
 vR6r9Yzkp49osHT9HZ/Z2w==

<SEC-DOCUMENT>0000075362-08-000067.txt : 20080422
<SEC-HEADER>0000075362-08-000067.hdr.sgml : 20080422
<ACCEPTANCE-DATETIME>20080422205636
ACCESSION NUMBER:		0000075362-08-000067
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20080421
FILED AS OF DATE:		20080422
DATE AS OF CHANGE:		20080422

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SPIERKEL GREGORY M
		CENTRAL INDEX KEY:			0001191461

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-14817
		FILM NUMBER:		08770442

	BUSINESS ADDRESS:	
		STREET 1:		C/O INGRAM MICRO INC
		STREET 2:		WORLDWIDE LEGAL DEPT 1600 E ST
		CITY:			SANTA ANA
		STATE:			CA
		ZIP:			92705

	MAIL ADDRESS:	
		STREET 1:		C/O INGRAM MICRO INC WORLD WIDE L
		STREET 2:		1600 E ST ANDREW PLACE
		CITY:			SANTA ANA
		STATE:			CA
		ZIP:			92705

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>3
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2008-04-21</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000075362</issuerCik>
        <issuerName>PACCAR INC</issuerName>
        <issuerTradingSymbol>PCAR</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001191461</rptOwnerCik>
            <rptOwnerName>SPIERKEL GREGORY M</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>777 106TH AVE NE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>BELLEVUE</rptOwnerCity>
            <rptOwnerState>WA</rptOwnerState>
            <rptOwnerZipCode>98004</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <footnotes></footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/G. M. E. Spierkel  By Janice D'Amato POA/</signatureName>
        <signatureDate>2008-04-22</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>attach_2.htm
<DESCRIPTION>POWER OF ATTORNEY FOR GREGORY M. E. SPIERKEL
<TEXT>
<HTML><BODY><PRE>POWER OF ATTORNEY







 I, Gregory M. E. Spierkel, hereby appoint and constitute Janice M. D'Amato and

David C. Anderson, acting individually, my true and lawful attorney-in-fact with full

power to sign for me and in my name a Statement of Changes in Beneficial Ownership

of Securities issued by PACCAR Inc on Form 3, 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   May 2010 unless earlier terminated by the undersigned in

writing.



 IN WITNESS WHEREOF, the undersigned has executed this power of attorney

this 14th day of   April , 2008.







/Gregory M. E. Spierkel/



</PRE></BODY></HTML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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