Now there’s no need to choose between pulling power and affordable fuel economy. A revolutionary engine design, yet it still delivers what you expect from a Detroit: bullet-proof reliability and easy maintenance.

Demand Performance

A new design offers a majority of its peak torque down to 1,000 RPM. You'll treat on-ramps like drag strips. With up to 50 bonus HP, the thrill of the road is back.

Demand Support

The revolutionary DD15 can't be described, only driven. It'll push you back into your seat. So get into your local Freightliner, Sterling or Western Star dealer and re-discover the fun of driving.

Demand Reliability

You get Detroit Diesel's renowned reliability, plus the best performing parts and service network. The game-changing DD15 is the ultimate workhorse. 

Demand Economy

Compared to the Series 60, which has legendary fuel economy, the DD15 runs up to 5% more miles per gallon.

Related Documents

DD15 Brochure

DD15 Spec Sheet