Cummins ISX 15 L Diesel 400 hp Engine, 2006 US EPA Label, 29036 Engine hrs, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Eaton Fuller 10-Speed Manual Transmission, Differential Lock, 12000 lb Front Axle, 40000 lb Rears, 52000 lb GVWR, Air Ride Cab, 51 in High Rise Sleeper Cab, Bunk Beds, Thermo King TriPac Auxiliary Power Unit, 295/75R22.5 Front Tires, 295/75R22.5 Rear Tires, Air Ride Suspension, 205 in Wheelbase, Dual Fuel Tanks