Cat C15 Diesel 475 hp Engine, 12498 Engine hrs, Engine Brake, Eaton Fuller 18-Speed Manual Transmission, Triple Differential Locks, 35996 lb Front Axle, 54993 lb Rears, 91000.0 lb GVWR, Aluminum Wheels, 445/65R22.5 Front Tires, 11R24.5 Rear Tires, Dual Steering Boxes, Air Assist Front Suspension, Air Ride Suspension, 352 in Wheelbase, 52000 lb Capacity, Center Mounted, 27 ft - 70 ft 2 Section Boom, Out and Down Outriggers, Rear Outriggers, Ringfeder