Paccar 12.9 L Ultra Low Sulfur Diesel 405 hp Engine, 2019 US EPA Label, Requires Diesel Exhaust Fluid, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Automatic Transmission, 12350 lb Front Axle, 40000 lb Rears, 52350 lb GVWR, Air Ride Cab, 295/75R22.5, Air Ride Suspension, 182 in Wheelbase, Air Sliding 5th Wheel, Dual Fuel Tanks