PACCAR INC — Director's Dealing 2011

Jan 5, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: PACCAR INC (PCAR)
CIK: 0000075362
Period of Report: 2011-01-03

Reporting Person: WILLIAMSON CHARLES R (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-01-03	COMMON STOCK	A	1557	$57.84	Acquired	11934	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-01-03	STOCK UNITS	$	A	324.17	Acquired		COMMON STOCK (324.17)	Direct

Footnotes

F1: Restricted stock awarded under PACCAR Restricted Stock and Deferred Compensation Plan for Non-Employee Directors (RSDCP).

F2: Stock units held in deferred phantom stock account under (RSDCP) convertible to common stock on a 1-for-1 basis upon termination of the Reporting Person's status as a non-employee director.

F3: Cash compensation deferred into phantom stock account under RSDCP.