Cummins ISM 6 Cylinder Diesel Engine, 4069.0 Engine hrs, Air Conditioner, Cruise Control, Eaton Fuller Manual Transmission, 20000 lb Front Axle, 46000 lb Rears, Meritor RT-46-160 Drive Axles, 4.89:1 Axle Ratio, 80000 lb GVWR, Air Ride Cab, 425/65R22.5 Front Tires, 11R22.5 Rear Tires, 2 Steerable Air Lift Pusher Axle, Dual Steering Boxes, Rubber over Walking Beam Suspension, 247 in Wheelbase, McNeilus 12 cyd Mixer Unit, 3 Removable Chutes