Detroit DD13 6 Cylinder 12.8 L Ultra Low Sulfur Diesel 500 hp Engine, 2011 US EPA Label, Requires Diesel Exhaust Fluid, 16404.33 Engine hrs, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Eaton Fuller 10-Speed Transmission, 12000 lb Front Axle, 40000 lb Rears, 52000 lb GVWR, Air Ride Cab, Aluminum Outer Wheels, 275/80R22.5 Front Tires, 295/75R22.5 Rear Tires, Air Ride Suspension, 172 in Wheelbase, Air Sliding 5th Wheel