POWER BY

Not your traditional mix and match offering, the Western Star 5700XE features powerful and efficient Detroit power exclusively. When these engines are coupled with Detroit™ axles and the DT12® transmission, you get a dependable package that’s engineered and designed by one manufacturer, maximizing power, fuel economy and performance while providing the industry’s best driving experience – all supported and covered by a single factory warranty.

You can also take efficiency to the next level with the Integrated Detroit™ Powertrain package. This combines the downsped DD15 with the direct drive DT12 transmission and specific rear axle ratios to provide the industry’s most efficient powertrain package.