PACCAR INC — Director's Dealing 2004

Jul 9, 2004

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: PACCAR INC (PCAR)
CIK: 0000075362
Period of Report: 2004-07-08

Reporting Person: ARMSTRONG RONALD E (VICE PRESIDENT/CONTROLLER)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2004-07-08	COMMON STOCK (SIP)	J	17.2	$56.44	Acquired	4881.6	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
STOCK OPTION	$22.94	2011-01-24	COMMON STOCK (8299)	8299	Direct
STOCK OPTION	$28.20	2012-01-23	COMMON STOCK (6903)	6903	Direct
STOCK OPTION	$31.40	2013-01-15	COMMON STOCK (9619)	9619	Direct
STOCK OPTION	$56.95	2014-01-15	COMMON STOCK (5685)	5685	Direct

Footnotes

F1: June 4, 2004 dividend on PACCAR Savings Investment Plan (SIP) shares reinvested pursuant to SIP. SIP information based on most recent report from SIP Trustee - received July 8, 2004.

F2: Option to buy awarded under PACCAR Long Term Incentive Plan.