Detroit Series 60 6 Cylinder 12.7 L Ultra Low Sulfur Diesel 455 hp Engine, 2005 US EPA Label, 10441.5 Engine hrs, Air Conditioner, Cruise Control, Eaton Fuller 10-Speed Manual Transmission, 12000 lb Front Axle, 20000 lb Rears, 32000 lb GVWR, 295/75R22.5 Front Tires, 295/75R22.5 Rear Tires, Air Ride Suspension, 164 in Wheelbase