Cummins N14 6 Cylinder 14.0 L Diesel 350 hp Engine, Engine Brake, Eaton Fuller RTLO-15610B 10-Speed Manual Transmission, Differential Lock, 12000 lb Front Axle, 40000 lb Rears, Meritor RT-40-145 Drive Axles, 3.73:1 Axle Ratio, 52000 lb GVWR, Steel, 11R22.5, Spring Suspension, 215 in Wheelbase, Central Machine Works 3500 gal Steel Tank, Rear Spray