Detroit DD15 14.8 L Diesel 505 hp Engine, 2015 US EPA Label, Requires Diesel Exhaust Fluid, 17360.5 Engine hrs, Air Conditioner, Cruise Control, Power Windows, Detroit DT12-DA-1750 12-Speed Automated Transmission, Differential Lock, 12350 lb Front Axle, 40000 lb Rears, Meritor MT-40-14X Drive Axles, 2.47:1 Axle Ratio, 52350.0 lb GVWR, Air Ride Cab, Aluminum Wheels, 11R22.5 Front Tires, 275/70R22.5 Rear Tires, Airliner Air Ride Suspension, 178 in Wheelbase, Air Sliding 5th Wheel, Dual Fuel Tanks