Detroit DD15 14.8 L Ultra Low Sulfur Diesel 475 hp Engine, 2021 US EPA Label, Requires Diesel Exhaust Fluid, Air Conditioner, Power Windows, Engine Brake, Automated Transmission, 13220 lb Front Axle, 40000 lb Rears, 53220 lb GVWR, Air Ride Cab, 72 in High Rise Sleeper Cab, 11R22.5, Airliner Air Ride Suspension, 226 in Wheelbase, Air Sliding 5th Wheel, Dual Fuel Tanks