Daimler Trucks North America, Portland OR, will offer a full line of its own Detroit Diesel (DD) engines, as well as Cummins heavy- and medium-duty engines, across its Freightliner, Sterling, Western Star, and Thomas Built Buses vehicle range, according to company information.
The Detroit Diesel DD15, at 14.8L displacement, was launched in October 2007 as the first in a line of all new heavy-duty diesel engines that will ultimately power Daimler Trucks offerings around the world. The DD15 utilizes turbo compounding and amplified common rail fuel injection for power and fuel economy. Additional variants, at 12.8L (DD13) and 15.6L (DD16) will be introduced at intervals over the coming months, and will supplant current Detroit Diesel and Mercedes-Benz heavy-duty engine offerings in the Daimler Trucks North America stable of commercial vehicles.
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. Cummins is Daimler Trucks North America'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.