Volvo D13H500 12.8 L Ultra Low Sulfur Diesel 500 hp Engine, 2012 US EPA Label, Requires Diesel Exhaust Fluid, Air Conditioner, Power Windows, Volvo ATO2612D 12-Speed Automatic Transmission, 12350 lb Front Axle, 38000 lb Rears, 50350 lb GVWR, Air Ride Cab, 61 in High Rise Sleeper Cab, Bunk Beds, Aluminum Wheels, 295/75R22.5, Air Assist Front Suspension, Air Ride Suspension, 221 in Wheelbase, Air Sliding 5th Wheel, Dual Fuel Tanks