Cummins ISX15 15 L Diesel 450 hp Engine, 2015 US EPA Label, Requires Diesel Exhaust Fluid, 16820 Engine hrs, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Eaton Fuller 10-Speed Manual Transmission, Differential Lock, 12350 lb Front Axle, 40000 lb Rears, 52350 lb GVWR, Air Ride Cab, 72 in High Rise Sleeper Cab, Bunk Beds, Bunk Heater, Aluminum Wheels, 295/75R22.5, Air Ride Suspension, 226 in Wheelbase, Air Sliding 5th Wheel, Dual Fuel Tanks