Detroit DD16 6 Cylinder 15.6 L Diesel 530 hp Engine, 2015 US EPA Label, 18701 Engine hrs, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Eaton Fuller 13-Speed Manual Transmission, 12000 lb Front Axle, 40000 lb Rears, 52000 lb GVWR, Air Ride Cab, 60 in Mid Roof Sleeper Cab, Air Assist Front Suspension, Airliner Air Ride Suspension, 251 in Wheelbase, Air Sliding 5th Wheel, Dual Fuel Tanks