Aluminum One Way Check Valve with -6an Male Fittings TThese Speedmaster aluminum pulleys are

TThese Speedmaster aluminum pulleys are made from a 356 aluminum alloy that is heat-treated to T-6 specs

20% lighter than a stock pump (11

you must use one that is also approved as street legal for your application

including most aftermarket and OEM gauges

If your vehicle is using aftermarket components

Aluminum One Way Check Valve with -6an Male Fittings TThese Speedmaster aluminum pulleys areSpeedmaster one way check valves are designed to prevent the back flow of any fuel, coolant, or oils. Their design provides minimal flow restriction, and the high quality construction of the Speedmaster one way check valves ensures long lasting performance.