Fresh from the production line, Western Star 57X is a brand-new iteration of the vocational truck formula. Built on a lightweight yet extremely durable frame and armed with a state of the art engine and transmission, this beast of a vehicle is powerful enough to take on virtually any job. This, combined with its improved maneuverability and wide assortment of functional add-ons make the model 57X a true master of all trades.
A very sturdy gearbox optimized for harsh off-road conditions, sacrificing fuel efficiency, top speed and gear count in exchange for three Low Gear stages.
A more powerful alternative to regular stock power systems, this engine offers increased power, durability and acceleration at the cost of fuel consumption.
A fine-tuned version of a popular engine sporting excellent reliability and power at the cost of even lower fuel efficiency.
A high-range gearbox variant with increased gear count and top speed, and an additional High Gear at the cost of lower durability.
A specialized gearbox allowing free Low Gear / R Gear transfer ratio tuning. Notoriously fragile and not very fuel-efficient in AWD mode owing to its mechanical complexity.