Cummins ISX 6 Cylinder 15 L Ultra Low Sulfur Diesel 450 hp Engine, 2008 US EPA Label, 2928 Engine hrs, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Eaton Fuller 10-Speed Manual Transmission, 12350 lb Front Axle, 40000 lb Rears, 52350 lb GVWR, Air Ride Cab, 11R22.5, Air Ride Suspension, 176 in Wheelbase, Air Sliding 5th Wheel, Dual Fuel Tanks