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Introducing the Western Star 57X, the newest member of the Western Star X-Series family and the most advanced and driver-focused highway truck they’ve ever built. Built on a history of toughness and equipped with technology, comfort, safety and efficiency that rewards you every time you get behind the wheel and when you check your bottom line. Born from the driver’s need for increased efficiency, safety, and comfort. Purpose-built to redefine what a highway truck should be.

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Tested in a tunnel, proven on the road.

Extensive wind tunnel testing enabled our engineers and designers to create a sleek, modern chassis with bold aerodynamics that help deliver maximum fuel efficiency in all conditions and at any speed. Nothing escaped scrutiny. REFINEMENTS INCLUDE: Redesigned hood and door mirrors for enhanced aerodynamics, Full chassis fairings featuring enhanced flexible side skirts, Reshaped front wheel well closeouts, 24” side extenders, Optimized low ground clearance bumper, Optimized drive wheel fairings, Extended roof spoiler, Aerodynamic height control, Michelin X Line Energy D+ Tires.

Smarter data. More uptime. Better business with Detroit Connect.

Information is powerful. It’s the data to go farther and the intelligence to work harder. Detroit Connect® is your window into your vehicle’s performance. It’s your pathway to making smarter decisions for your business that move the needle of profitability forward.

Comfort while driving. Comfort when not.

Western Star’s focus on building the most comfortable cabs possible continues with the 57X. Lightweight steel-reinforced aluminum cabs offer a host of features designed to reduce noise and increase comfort to keep driver’s efficient and safe.
  • Daycab
  • Midroof Sleeper
  • Sleeper
  • Engine Make : Detroit Diesel
  • Engine Model : DD13, DD15, DD16
  • Fuel Type : Diesel
  • Class : 8
  • GVWR : Up to 60,700lb combined
  • Cabin Type : Day Cab, Mid Roof, Sleeper
  • Duty Type : Heavy Duty, Severe Duty

    Quick Notes:

  • Class 7/8 • 91,000
  • GVW • 260 to 450HP
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