Western Star's component and proprietary option solutions are second to none.

We engineer and build our components just like we build our trucks -- with your job in mind. From under the hood to inside the cab, our components will keep you on the road and comfortable, while handling the tough work.

	DD16™ Diesel Engines With the most horsepower from Detroit, the Detroit Diesel DD16™ drives like the heavy-duty diesel engine you always wanted: 600 horsepower to muscle up the hills and 2050lb-ft of torque to move the heaviest loads. The DD16 is made for extreme loads. Whether you're in the coal mines of West Virginia or the forests of Western Canada, this engine has the power and torque to deliver. The DD16 is the powerhouse engine for the owner operator and severe-duty vocational markets.
	DD15™ Diesel Engines For 70 years, Detroit Diesel has been perfecting and innovating diesel engines. But now, after extensive research and testing, meet the DD15™ -- an engine for the next generation of commercial vehicles. The DD15 runs smoother, cleaner, more economically and needs fewer service visits than any other engine in the industry. Basically, it's the most innovative engine out there.
	DD13™ Diesel Engines The DD13™ is built for bottom line performance. Designed specifically for Less-Than-Truckload, Regional Distribution and Vocational applications, the DD13 delivers the serviceability and performance you need -- and up to 5% better fuel economy.
	Mercedes-Benz MBE4000 Engines The MBE 4000 offers the best combination of performance, fuel economy, cost of operation, reliability, driver satisfaction, ease of service, warranty satisfaction, and long life -- all in a lightweight heavy-duty diesel package.
	Detroit Diesel Series 60® Engines Since 1992, the Detroit Diesel Series 60® has been North America's most popular heavy-duty on-highway diesel engine. With its excellent fuel economy and highly reliable performance, the Series 60 has become the industry's workhorse. The 2007 version of the Series 60 continues this tradition while meeting all Federal and California diesel-engine emissions requirements.
	Steer Axle Bridging American and European technology, Detroit Diesel's Steer Axles provide market- leading durability, performance and value. Available in most Western Star trucks.
	Tandem Axle Innovative and state-of-the-art engineering gives these axles market-leading performance and value. Available in most Class 8 Western Star trucks.
	TufTrac™ Vocational Suspension TufTrac is a rugged, tandem axle suspension for heavy-duty vocational trucks. Designed for on- and off-highway service where extremely high axle articulation can occur, TufTrac provides an excellent platform for high center of gravity applications.
	AirLiner® Suspension The ingenious, no-maintenance designs of our single and tandem air ride suspensions save weight and operating costs while superbly cushioning you, your vehicle and your load.