Genuine PC2Z-2L181-A Power Brake Booster Check Valve Seal Grommet

The Genuine PC2Z-2L181-A is an OEM Power Brake Booster Check Valve Seal, also commonly referred to as a brake booster check valve grommet. This small but critical sealing component mounts where the vacuum hose connects to the power brake booster, forming an airtight seal that maintains the vacuum pressure required for proper brake assist operation.

A failed or deteriorated check valve seal can allow air to enter the brake booster vacuum circuit, resulting in a stiff or hard brake pedal, reduced braking power, or a whistling noise when the brakes are applied. Replacing this seal with a genuine OEM part restores the proper vacuum seal and ensures consistent brake pedal feel and performance.

Key Features:

• Genuine OEM part — manufactured to original factory specifications
• Seals the vacuum hose connection at the power brake booster to prevent air leaks
• Restores proper vacuum-assisted braking performance
• Direct OEM replacement — no modification required
• Also known as: Power Brake Booster Grommet, Vacuum Hose Grommet, Booster Check Valve Grommet

Part Number Cross-Reference:

• OEM Part Number: PC2Z-2L181-A / PC2Z2L181A
• Superseded By: CK4Z-2L181-A / CK4Z2L181A

This is a genuine OEM replacement seal designed to meet original equipment standards for fit, form, and function.