Detroit DD13 6 Cylinder 12.8 L Ultra Low Sulfur Diesel 410 hp Engine, Requires Diesel Exhaust Fluid, 20423 Engine hrs, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Eaton Fuller FRO-14210C 10-Speed Manual Transmission, 12000 lb Front Axle, 40000 lb Rears, Detroit DA-RT-40.0-4 Drive Axles, 3.73:1 Axle Ratio, 52000 lb GVWR, Air Ride Cab, 295/75R22.5 Front Tires, 12R22.5 Rear Tires, Airliner Spring Suspension, 166 in Wheelbase, Air Sliding 5th Wheel