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HomeTrucksWestern Star57X
Western StarClass 8

57X

Western Star goes premium on-highway.

Introduced in 2022 as Western Star's all-new on-highway tractor, the 57X is the most fuel-efficient truck the brand has ever built, running 5.8 percent more efficient than the 5700XE it replaced. It pairs Gen 5 Detroit DD13, DD15 and DD16 power with reworked cab and chassis aerodynamics, including flexible chassis skirts that fill the gap between cab and chassis.

Built by
Daimler Truck North America
Production
2021–present
Body type
Sleeper
Rating
Up to 80,000 lb GCWR
Power
Up to 505 hp
Typical jobs
Long-haul, Premium owner-operator
Engine options
Detroit DD13Detroit DD15

Common parts that fit

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Common replacement parts for this class of truck. Confirm exact fitment for your engine and config with Mike before ordering.

3030HNTRX - 3030 SPEC LONG SHAFT HNTRX BRAKE CHAMBER

3030HNTRX

3030HNTRX - 3030 SPEC LONG SHAFT HNTRX BRAKE CHAMBER

OTR10143 - AUTO SLACK ADJUSTER, 11/2-10DRIVE 5.5,6.5

OTR10143

OTR10143 - AUTO SLACK ADJUSTER, 11/2-10DRIVE 5.5,6.5

5-808330 - BRAKE KIT FOR 4709DEN SHOES

5-808330

5-808330 - BRAKE KIT FOR 4709DEN SHOES

370036A - OIL BATH SEAL

370036A

370036A - OIL BATH SEAL

348-4195 - HUB CAP (SENTINAL LARGE DIAM)

348-4195

348-4195 - HUB CAP (SENTINAL LARGE DIAM)

5008414PGBXW - AIR DRYER CARTRIDGE, PURAGUARD

5008414PGBXW

5008414PGBXW - AIR DRYER CARTRIDGE, PURAGUARD

11444 - GLADHAND BRACKET MOUNT

11444

11444 - GLADHAND BRACKET MOUNT

15W40 OIL - 15W40 OIL (ROTELLA) GAL JUG

15W40 OIL

15W40 OIL - 15W40 OIL (ROTELLA) GAL JUG

Brakes & Wheel EndAir SystemFiltrationElectrical & LightingSuspension & SteeringCooling SystemDrivetrainBody & CabExhaust
Find parts that fit

More Western Star models

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49X

The flagship severe-duty brute.

47X

The vocational workhorse of the X-series.

4700

The accessible vocational Star.

4900

The classic hand-built Star.

5700XE

Western Star's aerodynamic experiment.

4800

The short-hood workhorse built for the dirtiest jobs in the yard.

6900XD

The heaviest-rated truck Western Star has ever built.

5800

Western Star's set-back-axle step toward the aerodynamic highway hauler.

5900

The big-bore Aero Tractor for drivers who wanted more cubes.

3800

Western Star's lighter-duty answer to city hauling and delivery.
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