Detroit DD15 6 Cylinder 14.8 L Diesel 455 hp Engine, 2022 US EPA Label, Requires Diesel Exhaust Fluid, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Automatic Transmission, 13300 lb Front Axle, 40000 lb Rears, 53300 lb GVWR, Air Ride Cab, 72 in High Rise Sleeper Cab, Aluminum Wheels, 275/80R22.5, Airliner Air Ride Suspension, 236 in Wheelbase, Air Sliding 5th Wheel, Dual Fuel Tanks