Cummins 6 Cylinder Upper Engine, Out and Down Outriggers, Rear Outriggers, Detroit Series 60 6 Cylinder 14.0 L Diesel 515 hp Engine, 2004 US EPA Label, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Eaton Fuller 18-Speed Manual Transmission, Differential Lock, 20000 lb Front Axle, 46000 lb Rears, 66000 lb GVWR, Air Ride Cab, Aluminum Wheels, 425/65R22.5 Front Tires, 11R24.5 Rear Tires, Dual Steering Boxes, Air Ride Suspension, 280 in Wheelbase, PTO, Wet Kit