Detroit DD15 6 Cylinder Diesel Engine, 27357 Engine hrs, Engine Brake, Eaton Fuller 18-Speed Manual Transmission, Differential Lock, Air Ride Cab, 60 in Sleeper Cab, Aluminum Outer Wheels, 12R22.5 Front Tires, 11R22.5 Rear Tires, Airliner Air Ride Suspension, 230 in Wheelbase, Wet Kit, Air Sliding 5th Wheel, Dual Fuel Tanks