Navistar 6 Cylinder 12.4 L Ultra Low Sulfur Diesel 450 hp Engine, 2020 US EPA Label, Requires Diesel Exhaust Fluid, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Eaton Fuller EE0-17F112C Automatic Transmission, 12350 lb Front Axle, 20000 lb Rears, Air Ride Cab, Aluminum Wheels, 295/75R22.5 Front Tires, 295/75R22.5 Rear Tires, Air Ride Suspension, 156 in Wheelbase, Air Sliding 5th Wheel, Dual Fuel Tanks