In the internal combustion engine, the oil pump is designed to deliver oil to the rotating bearings, the sliding pistons and the camshaft of the engine by circulating the engine oil. There is a cover on the oil pump named oil pump gasket. The function of the gasket is to seal the oil inside. However, owing to a longtime usage and heating, your oil pump gasket will start to wear and tear one day. A failing oil pump gasket does a great damage to your engine. You are supposed to check the oil pump, including the gasket, regularly. Once you decide to do replacement, you need to order a brand new oil pump gasket online and replace it by yourself. We are glad to be your first choice for you Subaru, and we deserve your trusting since we offer you all Subaru genuine OEM oil pump gasket with an attractive price.