Navistar 6 Cylinder 12.4 L Diesel 475 hp Engine, 2021 US EPA Label, Requires Diesel Exhaust Fluid, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Eaton Fuller 12-Speed Automatic Transmission, 12350 lb Front Axle, 40000 lb Rears, Meritor MT-40-14X Drive Axles, 2.79:1 Axle Ratio, 52350 lb GVWR, 56 in High Rise Sleeper Cab, Bunk Heater, Aluminum Wheels, 295/75R22.5 Front Tires, 275/80R22.5 Rear Tires, Air Ride Suspension, 198 in Wheelbase, Dual Fuel Tanks