Volvo D13J425 6 Cylinder 12.8 L Ultra Low Sulfur Diesel 425 hp Engine, 2014 US EPA Label, Requires Diesel Exhaust Fluid, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Volvo ATO2612D 12-Speed Automated 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 Ride Suspension, 220 in Wheelbase, Air Sliding 5th Wheel, Auto Lube, Dual Fuel Tanks