The high-pressure oil pump in your 7.3L Ford Powerstroke is in charge of providing high pressure oil to your injection system for proper operation of the fuel system. In some cases, the high-pressure oil pump can develop a leak at the sealing surface due to a bad gasket. Replace this gasket with the Cometic High Pressure Oil Pump Gasket. This gasket is designed to meet or exceed factory specifications and will provide a leak free seal.