Mercedes-Benz MBE4000 6 Cylinder Diesel 450 hp Engine, 2004 US EPA Label, 30178 Engine hrs, Engine Brake, Eaton Fuller Transmission, 315/80R22.5 Front Tires, 11R22.5 Rear Tires, Airliner Air Ride Suspension, 282 in Wheelbase, 218 in Cab to Axle, 276 in Cab to End of Frame