Maintain proper braking with one of these brake booster check valves which is often located on the brake booster assembly. This is a one-way check valve that allows the vacuum to build up in the brake booster and prevent vacuum from leaving the brake booster assembly. This gives the brake booster a consistent supply of vacuum needed to assist the driver when braking. Made from ABS plastic and supplied with a rubber grommet.
Suits 18.75mm (0.738") hole, Check Valve push in bar is 15.50mm (0.610") and the Barb is 9.52mm (3/8")
