Power booster grommet. A component which prevents a leak at the Brake Power Booster Unit Sensor. A Grommet for a Power Brake Booster Vacuum switch. A rubber ring with a hole in the center which provides protection through which the Brake Power Booster Unit Sensor or a part of said component passes through. Grommet used to mount the Brake master cylinder reservoir to the Brake master cylinder. Power Brake Booster Check Valve Seal. Power Brake Booster Grommet. Power Brake Booster Vacuum Hose Grommet. Hose. Master Cylinder Reservoir. Switch. Check Valve. Connector tube. Elbow. Pin. Sensor Seal. Included with: Booster, Booster assembly, Power Booster, Sensor.