Fuel Pump Check Valve Kit Fits 12-150 HP Electric Fuel Pump HolleyReplacement fuel pump check valve kit for 12 150 HP electric fuel pump Features and Benefits: Check valve kit for 12 150 fuel pump Includes lower gasket, check valve, spring and inlet screen filter Associated Comments: Forgot to install a fuel filter between the tank and your fuel pump? Is your pump not holding steady pressure or it's making noise? Sounds like dirt may have gotten in the relief valve. This kit and or our gerotor kit p n 12 821 service