Detroit DD15 6 Cylinder Diesel 455 hp Engine, 2013 US EPA Label, Requires Diesel Exhaust Fluid, 537 Engine hrs, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Eaton Fuller FRO-15210C 10-Speed Manual Transmission, Differential Lock, 12350 lb Front Axle, 40000 lb Rears, 3.42:1 Axle Ratio, 52350.0 lb GVWR, Air Ride Cab, Bunk Beds, Bunk Heater, Aluminum Wheels, 295/75R22.5 Front Tires, 295/75R22.5 Rear Tires, Air Ride Suspension, 238 in Wheelbase