Cummins ISX 6 Cylinder 15 L Ultra Low Sulfur Diesel 450 hp Engine, 2014 US EPA Label, Requires Diesel Exhaust Fluid, 21987 Engine hrs, Engine Brake, Eaton Fuller Manual Transmission, 12350 lb Front Axle, 40000 lb Rears, 52350 lb GVWR, Air Ride Cab, Mid Roof Sleeper Cab, Bunk Beds, Bunk Heater, Aluminum Wheels, 295/75R22.5, Air Ride Suspension, 248 in Wheelbase, Air Sliding 5th Wheel, Dual Fuel Tanks