Detroit DD13 6 Cylinder 12.8 L Ultra Low Sulfur Diesel 450 hp Engine, 2012 US EPA Label, Requires Diesel Exhaust Fluid, 8256.0 Engine hrs, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Eaton Fuller FRO-15210C 10-Speed Manual Transmission, 12000 lb Front Axle, 40000 lb Rears, Meritor MT-40-14X4 Drive Axles, 3.55:1 Axle Ratio, 52000 lb GVWR, Air Ride Cab, 295/75R22.5, Airliner Air Ride Suspension, 179 in Wheelbase, PTO, Wet Kit, Air Sliding 5th Wheel