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.

	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.