International 6 Cylinder Ultra Low Sulfur Diesel Engine, 2011 US EPA Label, Requires Diesel Exhaust Fluid, 15620 Engine hrs, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Eaton Fuller 10-Speed Manual Transmission, Differential Lock, 12000 lb Front Axle, 40000 lb Rears, 52000 lb GVWR, Air Ride Cab, Aluminum Front Wheels, 11R22.5 Front Tires, 11R22.5 Rear Tires, Air Ride Suspension, 162 in Wheelbase, PTO, Air Sliding 5th Wheel