6 Cylinder Ultra Low Sulfur Diesel Engine, Requires Diesel Exhaust Fluid, Air Conditioner, Cruise Control, Power Windows, Automatic Transmission, 12000 lb Front Axle, 22700 lb Rears, 34700 lb GVWR, Air Ride Cab, 295/75R22.5 Front Tires, 295/75R22.5 Rear Tires, Airliner Air Ride Suspension, 166 in Wheelbase, Dual Fuel Tanks