PACCAR Announces Extra Cash Dividend and Quarterly Dividend

December 7, 2010, Bellevue, Washington PACCAR Inc’s Board of Directors today declared an extra cash dividend in the amount of thirty cents ($.30) per share, payable on December 29, 2010 to stockholders of record at the close of business on December 17, 2010.  The Board of Directors also declared a quarterly cash dividend in the amount of twelve cents ($.12) per share, payable on March 7, 2011, to stockholders of record at the close of business on February 17, 2011.  “This special dividend reflects improving, but still challenging, truck markets in Europe and North America.  PACCAR has emerged from the recession in good financial position and is significantly increasing investment in new products and global markets,” said Mark Pigott, chairman and chief executive officer.

PACCAR’s new diesel engine manufacturing facility in Columbus, Mississippi is increasing production to support demand from Peterbilt and Kenworth customers.  “We are installing PACCAR MX engines in over 20 percent of Kenworth and Peterbilt Class 8 trucks.  This reflects customer recognition of the excellent power-to-weight ratio, fuel economy and reliability of the PACCAR MX engine,” said Jim Cardillo, PACCAR president.

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.  PACCAR also designs and manufactures advanced diesel engines and provides financial services and information technology and distributes truck parts related to its principal business.  PACCAR shares are traded on the Nasdaq Global Select market, symbol PCAR, and its homepage is www.paccar.com.