PORTLAND, Ore. — Daimler Trucks North America, announced today that it will offer a full line of its own Detroit Diesel engines, as well as Cummins heavy- and medium-duty engines, across its Freightliner, Sterling, Western Star and Thomas Built Buses vehicle range.

The Detroit Diesel DD15, at 14.8L displacement, was launched in October 2007, as the first in a complete line of all new heavy-duty diesel engines that will ultimately power Daimler Truck offerings around the world.

The 14.8L ISX heavy-duty diesel engine manufactured by Cummins Inc. will round out the options in Freightliner, Sterling and Western Star Class 8 trucks in the post-EPA10 era.

Today, Cummins is Daimler’s exclusive external engine partner in the supply of medium-duty ISB, ISC, and ISL engines for Freightliner trucks and chassis, Sterling trucks and Thomas Built buses in classes 5 through 7.

The Cummins ISX in EPA07 trim will be available in the recently introduced Freightliner Cascadia model, for delivery in January of 2009.

"This decision will complement our current successful and proprietary product line of Detroit Diesel and Mercedes-Benz engines. It will expand and strengthen the range of choices for our customers, and establish Cummins as a full range vendor engine partner," said Chris Patterson, president and chief executive officer of DTNA.