Cummins X15 6 Cylinder 15 L Ultra Low Sulfur Diesel 450 hp Engine, 2019 US EPA Label, Requires Diesel Exhaust Fluid, 14214 Engine hrs, Engine Brake, Automated Transmission, 12350 lb Front Axle, 40000 lb Rears, 52350 lb GVWR, Air Ride Cab, 72 in High Rise Sleeper Cab, Bunk Beds, Aluminum Wheels, 295/75R22.5, Air Ride Suspension, 228 in Wheelbase, Air Sliding 5th Wheel, Dual Fuel Tanks