Detroit Series 60 6 Cylinder Diesel Engine, 2006 US EPA Label, 39949 Engine hrs, Engine Brake, Eaton Fuller 9-Speed Manual Transmission, 60 in High Rise Sleeper Cab, Aluminum Front Wheels, 295/75R22.5, Airliner Air Ride Suspension, 232 in Wheelbase, Air Sliding 5th Wheel, Dual Fuel Tanks