International 6 Cylinder Ultra Low Sulfur Diesel Engine, Requires Diesel Exhaust Fluid, 19933 Engine hrs, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Eaton Fuller Manual Transmission, 13200 lb Front Axle, 40000 lb Rears, 53200 lb GVWR, Air Ride Cab, Mid Roof Sleeper Cab, Aluminum Wheels, 275/80R22.5 Front Tires, 275/80R22.5 Rear Tires, Air Ride Suspension, 240 in Wheelbase, Air Sliding 5th Wheel, Headache Rack, Dual Fuel Tanks