6 Cylinder 14.8 L Ultra Low Sulfur Diesel 505 hp Engine, 2018 US EPA Label, Requires Diesel Exhaust Fluid, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Detroit DT121750DH1HD 12-Speed Automated Transmission, Differential Lock, 12350 lb Front Axle, 40000 lb Rears, 2.28:1 Axle Ratio, 52350.0 lb GVWR, Air Ride Cab, High Rise Sleeper Cab, Bunk Beds, Bunk Heater, Aluminum Wheels, 295/75R22.5, Airliner Air Ride Suspension, 229 in Wheelbase, Air Sliding 5th Wheel, Dual Fuel Tanks