Cummins ISM 6 Cylinder 10.8 L Diesel 400 hp Engine, 2000 US EPA Label, 29246 Engine hrs, Air Conditioner, Cruise Control, Eaton Fuller FS-6406A 10-Speed Manual Transmission, 18000 lb Front Axle, 40000 lb Rears, Meritor RS-21-145 Drive Axles, 4.33:1 Axle Ratio, 52000 lb GVWR, Aluminum Wheels, 315/80R22.5 Front Tires, 11R22.5 Rear Tires, Rubber over Walking Beam Suspension, 204 in Wheelbase, Double Frame, 2002 Kersten Trailer 4750 gal Steel Tank, 4 Compartments, 2 Reels w/ Mechanical Register