Detroit DD15 6 Cylinder 14.8 L Ultra Low Sulfur Diesel Engine, 2017 US EPA Label, Requires Diesel Exhaust Fluid, Power Windows, Cruise Control, Air Conditioner, Engine Brake, Automated Transmission, 12000 lb Front Axle, 40000 lb Rears, 52000 lb GVWR, Air Ride Cab, 48 in High Rise Sleeper Cab, Auxiliary Power Unit, Aluminum Wheels, 295/75R22.5, Airliner Air Ride Suspension, 270 in Wheelbase, Dual Fuel Tanks