Detroit DD15 6 Cylinder 14.8 L Ultra Low Sulfur Diesel 505 hp Engine, 2019 US EPA Label, Requires Diesel Exhaust Fluid, Air Conditioner, Cruise Control, Power Windows, Detroit Automated Transmission, 12350 lb Front Axle, 40000 lb Rears, 52350 lb GVWR, Air Ride Cab, 58 in High Rise Sleeper Cab, Bunk Beds, Bunk Heater, Sleeper Air Conditioner, Aluminum Outer Wheels, 295/75R22.5 Front Tires, 295/75R22.5 Rear Tires, Airliner Air Ride Suspension, 238 in Wheelbase, Dual Fuel Tanks