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.
From anticipating traffic slowdowns to protecting blind spots to keeping trucks in their lanes, Detroit Assurance® Suite of Safety Systems has the technology to help improve safety and uptime.
Active Brake Assist 5 detects distance and speed to moving and stationary objects in its path and determines if braking is necessary. It’s the only system on the market that works down to 5 MPH*, making it ideal for travel in congested urban areas. It also recognizes pedestrians who are about to cross in the truck’s path, alerting the operator while partially braking, followed by full braking if the operator does not react.
Detroit Assurance technology enables state-of-the-art features such as Adaptive Cruise Control to 0 MPH to ease driving in stop-and-go traffic, as well as help mitigate front and rear collisions.
Whether stopped in heavy traffic or for any other reason, this state-of-the-art feature can keep a truck* stopped when the driver removes their foot from the brake. Brake Hold Mode can be engaged by pressing the brake pedal all the way down. It automatically disengages when the driver accelerates. *with DT12 Transmission
Lane Keep Assist reads and tracks lane markers to help drivers keep their trucks centered in their lane.
This safety feature detects when a truck drifts out of its lane and then actively steers it back on course.
A game changer for safety, Side Guard Assist detects objects on the passenger side of the truck and alerts the operator.
This industry leading technology detects and actively prevents the truck from making a right turn into moving cyclists and pedestrians in urban situations.
- 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
- Class 7/8 • 91,000
- GVW • 260 to 450HP