Detroit DD13 12.8 L Ultra Low Sulfur Diesel 450 hp Engine, 2012 US EPA Label, Requires Diesel Exhaust Fluid, 13818.7 Engine hrs, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Eaton Fuller FRW-15210B 10-Speed Manual Transmission, Differential Lock, 12000 lb Front Axle, 40000 lb Rears, Meritor MT-40-14X Drive Axles, 3.55:1 Axle Ratio, 52000 lb GVWR, Air Ride Cab, 295/75R22.5 Front Tires, 11R22.5 Rear Tires, Airliner Air Ride Suspension, 174 in Wheelbase, Air Sliding 5th Wheel, Dual Fuel Tanks