PACCAR Announces Quarterly Cash Dividend

September 12, 2006, Bellevue, Washington PACCARs Board of Directors declared a quarterly cash dividend in the amount of twenty cents ($.20) per share, payable on December 5, 2006, to stockholders of record at the close of business on November 17, 2006.  PACCAR has generated excellent shareholder returns due to its focus on premium-quality products and processes, innovative use of technology, excellent financial services and comprehensive aftermarket customer support, said Mark Pigott, chairman and chief executive officer.  The Companys stock has outperformed the Standard & Poors 500 Index for the previous one-, three-, five- and ten-year time periods.

The company recently opened its new Kenworth factory in Mexico, which will produce vehicles for Mexico, as well as South America and other export markets, Tom Plimpton, president, noted.  PACCAR has increased its market share in North America and Europe and is expanding its aftermarket customer support by constructing two new distribution centers in Oklahoma City and Budapest, Hungary.  In addition, PACCAR continues to examine business opportunities in Asia.

PACCAR is a global technology leader in the design, manufacture and customer support of high-quality light-, medium- and heavy-duty trucks under the Kenworth, Peterbilt and DAF nameplates.  It also provides financial services and information technology and distributes truck parts related to its principal business.

PACCAR shares are listed on NASDAQ Global Select Market, symbol PCAR, and its homepage can be found at www.paccar.com.