X0202 4 2006-10-06 0000075362 PACCAR INC PCAR 0001191908 GANGL KENNETH R 777 106TH AVENUE NE BELLEVUE WA 98004 0 1 0 0 SENIOR VICE PRESIDENT COMMON STOCK (SIP) 2006-10-06 4 J 0 10.4 55.53 A 2891.3 D COMMON STOCK (SIP) 2006-10-06 4 J 0 .1 54.35 A 2891.4 D COMMON STOCK 9088 D COMMON STOCK (ESPP) 197.3 D STOCK OPTION 20.93 2006-01-01 2013-01-15 COMMON STOCK 13132 13132 D STOCK OPTION 37.97 2007-01-01 2014-01-15 COMMON STOCK 12991 12991 D STOCK OPTION 48.17 2008-01-01 2015-01-20 COMMON STOCK 11604 11604 D STOCK OPTION 48.34 2009-01-01 2016-01-26 COMMON STOCK 17163 17163 D September 5, 2006 dividend on PACCAR Savings Investment Plan (SIP) shares reinvested pursuant to SIP. (SIP information based on most recent report from SIP Trustee - received October 6, 2006.) On July 11, 2006 PACCAR declared a stock dividend of one additional share of common stock for every two shares of common stock payable August 10, 2006 to all holders of record of common stock on July 27, 2006. As a result of the stock dividend the reporting person 960.3 received additional shares of PACCAR common stock. Interest on funds held in SIP pending investment in shares reinvested in shares September 11, 2006 pursuant to SIP. As a result of the stock dividend the reporting person received 3,029 additional shares of PACCAR common stock on August 10, 2006. Shares held in the PACCAR Inc Employee Stock Purchase Plan (ESPP). As a result of the stock dividend the reporting person received 65.8 additional shares of PACCAR common stock on August 10, 2006. Option to buy awarded under PACCAR Long Term Incentive Plan. Number of derivative securities, underlying securities and price adjusted to reflect 50% stock dividend. Reporting person received $15.63 for a fractional share, valued as of July 27, 2006. Number of derivative securities, underlying securities and price adjusted to reflect 50% stock dividend. Reporting person received $7.11 for a fractional share, valued as of July 27, 2006. Number of derivative securities, underlying securities and price adjusted to reflect 50% stock dividend. Fractional shares rounded to nearest 1/10. Kenneth R. Gangl 2006-10-09