KIRKLAND, Wash., May 22, 2008 – Kenworth has introduced new automatic transmission offerings for customers in construction and shorthaul applications with high horsepower requirements.

Customers can now order the Kenworth T800 with Allison 4000 and 4500 series transmissions when spec’d with Cummins ISX engines, not to exceed 1,650 lb-ft.

“The new Kenworth T800 configuration offers the benefits of automatic transmissions while also meeting high horsepower requirements,” said Gary Moore, Kenworth assistant general manager for marketing and sales. “The Kenworth T800 is one of the industry’s leading models and this new offering will strengthen its position with customers to help get the job done in their specific applications.”

The Allison 4000 and 4500 series transmissions offered are especially designed for rugged duty or highway truck operators that are seeking productivity gains, durability advances and lower cost of ownership over the life of the truck. According to Allison, the transmissions feature torque converter technology that provides seamless full power shifts, which help vehicles to work within the best duty-cycle speeds faster and more efficiently. That saves times on routes, which can lead to greater productivity and fuel efficiency.

Kenworth Truck Company is the manufacturer of The World’s Best™ heavy and medium duty trucks. In addition, Kenworth is the recipient of the 2007 J.D. Power and Associates awards for Highest in Customer Satisfaction for Over The Road, Pickup and Delivery and Vocational Segment Class 8 trucks. Kenworth’s home page is www.kenworth.com. Kenworth. A PACCAR Company.