X0202 4 2008-01-11 1 0000075362 PACCAR INC PCAR 0001191908 GANGL KENNETH R 777 106TH AVENUE NE BELLEVUE WA 98004 0 0 0 1 VICE PRESIDENT & TREASURER COMMON STOCK 17583 D COMMON STOCK (ESPP) 295.95 D COMMON STOCK (SIP) 2008-01-11 4 J 0 .059 52.93 A 4850.113 D COMMON STOCK (SIP) 2008-01-11 4 J 0 .056 47.47 A 4850.169 D COMMON STOCK (SIP) 2008-01-11 4 J 0 16.071 54.32 A 4866.24 D COMMON STOCK (SIP) 2008-01-11 4 J 0 .04 51.95 A 4866.28 D COMMON STOCK (SIP) 2008-01-11 4 J 0 95.028 51.21 A 4961.308 D COMMON STOCK (SIP) 2008-01-11 4 A 0 226.709 49.62 A 5188.017 D STOCK OPTION 32.11 2008-01-01 2015-01-20 COMMON STOCK 17406 17406 D STOCK OPTION 32.23 2009-01-01 2016-01-26 COMMON STOCK 25744 25744 D STOCK OPTION 44.56 2010-01-01 2017-01-31 COMMON STOCK 21279 21279 D On September 11, 2007 PACCAR declared a stock dividend of one additional share of common stock for every two shares of common stock payable October 9, 2007 to all holders of record of common stock on September 25, 2007. As a result of the stock dividend the reporting person received 5,861 additional shares of PACCAR common stock. Shares held in the PACCAR Inc Employee Stock Purchase Plan (ESPP). Total adjusted to reflect 50% stock dividend. Shares held in PACCAR Savings Investment Plan (SIP). Number of shares adjusted to reflect 50% stock dividend. Interest on funds held in SIP pending investment in shares reinvested in shares October 17, 2007. (SIP information based on most recent report from SIP trustee - received January 11, 2008). Interest on funds held in SIP pending investment in shares reinvested in shares November 16, 2007. (SIP information based on most recent report from SIP trustee - received January 11, 2008). December 5, 2007 dividend on PACCAR Savings Investment Plan (SIP) shares reinvested pursuant to SIP. (SIP information based on most recent report from SIP trustee - received January 11, 2008). Interest on funds held in SIP pending investment in shares reinvested in shares December 18, 2007. (SIP information based on most recent report from SIP trustee - received January 11, 2008). January 7, 2008 dividend on SIP shares reinvested pursuant to SIP. Shares awarded January 10, 2008 under SIP. (SIP information based on most recent report from SIP trustee - received January 11, 2008). Option to buy awarded under PACCAR Long Term Incentive Plan (LTIP). Number of derivative securities, underlying securities and price adjusted to reflect 50% stock dividend. Reporting person received $12.40 for a fractional share valued as of October 9, 2007. Kenneth R. Gangl 2008-01-14