Cummins X15 6 Cylinder Ultra Low Sulfur Diesel 450 hp Engine, 2018 US EPA Label, Requires Diesel Exhaust Fluid, 16575 Engine hrs, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Automatic Transmission, 12350 lb Front Axle, 40000 lb Rears, 52350 lb GVWR, Air Ride Cab, 56 in High Rise Sleeper Cab, Bunk Beds, Aluminum Outer Wheels, 275/80R22.5 Front Tires, 295/75R22.5 Rear Tires, Navistar Air Ride Suspension, 230 in Wheelbase, Air Sliding 5th Wheel, Dual Fuel Tanks