Detroit Series 60 6 Cylinder 14.0 L Diesel 515 hp Engine, 2003 US EPA Label, 12523 Engine hrs, Air Conditioner, Cruise Control, Engine Brake, Eaton Fuller Manual Transmission, 12000 lb Front Axle, 40000 lb Rears, 52000 lb GVWR, Air Ride Cab, 295/75R22.5, Airliner Air Ride Suspension, 172 in Wheelbase, Air Sliding 5th Wheel, Dual Fuel Tanks