Detroit DD13 6 Cylinder 12.8 L Diesel 500 hp Engine, Engine Brake, Eaton Fuller 18-Speed Manual Transmission, Triple Differential Locks, 20000 lb Front Axle, 54300 lb Rears, 74300 lb GVWR, Air Ride Cab, Aluminum Front Wheels, 445/65R22.5 Front Tires, 11R24.5 Rear Tires, Dual Steering Boxes, Double Frame, Airliner Air Ride Suspension, 285 in Wheelbase, PTO, Cab Guard, 2011 Loglift 251S 89 Boom, Rear Mounted, Articulated Boom, 74300 lb GVWR, Hour Meter Reads 14001