57x Apr 2026

: Uses camera and radar to detect moving or stationary objects and can deploy full braking at speeds as low as 5 mph.

: Features a new aerodynamic hood, bumper with air ducts, and chassis fairings with flexible skirts to minimize drag. : Uses camera and radar to detect moving

: The truck is powered exclusively by Detroit engines, including the DD13 Gen 5, DD15 Gen 5, and DD16. The is the most advanced on-highway truck ever

The is the most advanced on-highway truck ever built by Western Star, designed to combine the brand's legendary "tough" DNA with modern efficiency and safety. Introduced as the final member of the X-Series lineup, it replaces the older 5700XE and is aimed specifically at owner-operators and small fleets. Unmatched Fuel Efficiency

Western Star has long been associated with vocational toughness, but with the Western Star 57X , the manufacturer has shifted its focus to the premium on-highway market. Unmatched Fuel Efficiency