Mercedes Benz OM 460LA 6 Cylinder 12.8 L Diesel 450 hp Engine, 2006 US EPA Label, CARB Compliant, 30644 Engine hrs, Engine Brake, Eaton Fuller FRO-14210C 10-Speed Manual Transmission, Differential Lock, 12000 lb Front Axle, 40000 lb Rears, 3.58:1 Axle Ratio, 52000 lb GVWR, Air Ride Cab, 11R22.5 Front Tires, 295/75R22.5 Rear Tires, Airliner Air Ride Suspension, 168 in Wheelbase, Air Sliding 5th Wheel, Dual Fuel Tanks