we supply spare parts for heavy equipment, which are mainly used on engine, hydraulic & electronic systerm, and undercarriage, covering almost the whole machine. excavator spare parts including bearings, gears, seal kits, engine parts, motors, pumps, solenoids, valves, etc. the cover and the ring gear is a conjointed type, and they are not able to be separated. the item fit to many models of excavators, even in different brand machines. you can contact us for more information if necesarry. the shipment can reach to most of the countries of the world, please contact us if there is no option for your destination..syi