Cummins ISX 6 Cylinder 15 L Ultra Low Sulfur Diesel 450 hp Engine, 2011 US EPA Label, 23090.2 Engine hrs, Air Conditioner, Cruise Control, Power Windows, Engine Brake, 10-Speed Manual Transmission, 12000 lb Front Axle, 40000 lb Rears, 52000 lb GVWR, Air Ride Cab, 11R22.5 Front Tires, 11R22.5 Rear Tires, Paccar Air Ride Suspension, 206 in Wheelbase, Air Sliding 5th Wheel, Headache Rack, Dual Fuel Tanks