Cummins ISM 6 Cylinder 10.8 L Diesel 425 hp Engine, 2007 US EPA Label, 18888 Engine hrs, Air Conditioner, Cruise Control, Engine Brake, Eaton Fuller 18-Speed Manual Transmission, Differential Lock, 20000 lb Front Axle, 46000 lb Rears, 66000 lb GVWR, Air Ride Cab, 425/65R22.5 Front Tires, 11R22.5 Rear Tires, Dual Steering Boxes, Double Frame, Rubber over Walking Beam Suspension, 201 in Wheelbase, PTO, daff 10 cyd Mixer Unit, Composite Water Tank