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Western Star Powertrain


One size never fits all in this business. So we offer a range of engine choices from both Detroit and Cummins. You can pick the right amount of power for your job. And like the other 3,600 options we offer, our engines are nothing short of the best. Plus, most engines are equipped with SCR technology to meet stringent 2010 EPA standards. Efficiency. Toughness. Power. Talk about getting your motor running.

 Visit Western Star to learn more about the Powertrain Options

Western Star Powertrain Options

Detroit DD13 Engine

Western Star Powertrain

Designed specifically for Less-Than-Truckload, Regional Distribution and Vocational applications, the DD13® diesel engine delivers serviceability, performance and up to 5% better fuel economy -- so you don't have to choose between an engine with great fuel economy, serviceability and performance ever again.

Detroit DD15 Engine

Western Star Powertrain

The new Detroit DD15 engine delivers more with less weight, powering the evolution of a new era in efficient driving. The DD15 is part of Detroit's Integrated Powertrain, three specifically-engineered Detroit components working together to improve efficiency, performance, and reliability.

Detroit DD16 Engine

Western Star Powertrain

The DD16 is made for extreme loads. Whether you're in the coalmines of West Virginia or the forests of Western Canada, this engine has the power and torque to deliver -- the powerhouse engine for the owner operator and severe-duty vocational markets.

Detroit Series 60

Western Star Powertrain

For off-road applications, with ratings of 500 hp and 1550 lb-ft of torque, or 425 hp and 1475 lb-ft of torque, the Series 60 Tier III is capable of handling the toughest jobs. The Series 60 Tier III runs more efficiently since it features a single-stage turbo and no EGR.

Cummins ISL

Western Star Powertrain

The ISL9 has one of the highest power-to-weight ratios in its class with heavy-duty features like replaceable wet liners. It also features the XPI fuel system -- the same technology thats used in the ISX15. These advances allow the ISL9 to run stronger and with greater responsiveness than ever before.

Cummins ISX

Western Star Powertrain

Expect superior driving performance and industry-leading fuel economy with Cummins ISX15 EPA 2010 engine. Every element has been designed and manufactured to optimize performance, reliability and durability while delivering the lowest operating costs of any engine in its class.

Detroit DT12

Western Star Powertrain

Intelligent Powertrain Management (IPM) pinpoints the truck's location and looks over a mile ahead to anticipate terrain. IPM will adjust cruise control, pre-select gears, eCoast and brake the engine to maximize efficiency into the road conditions ahead.