Cummins X15 6 Cylinder 15.0 L Diesel 500 hp Engine, 2018 US EPA Label, Requires Diesel Exhaust Fluid, Positive Air Shutoff, 9457.5 Engine hrs, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Eaton Fuller Automatic Transmission, Differential Lock, 12500 lb Front Axle, 34000 lb Rears, 50500 lb GVWR, Air Ride Cab, 63 in Mid Roof Sleeper Cab, Auxiliary Power Unit, Aluminum Wheels, 11R22.5 Front Tires, 11R22.5 Rear Tires, Air Assist Front Suspension, Air Ride Suspension, 246 in Wheelbase, Air Sliding 5th Wheel, Lowboy Ramps, Dual Fuel Tanks, On-Board Scale