2011–2015 VW Jetta Brake Booster Vacuum Check Valve Used OEM 1J0612181D
Genuine Volkswagen OEM brake booster vacuum check valve (part number 1J0612181D). This valve is installed in the vacuum line between the engine and the brake booster. It allows vacuum to flow in one direction only--toward the booster--while preventing reverse air flow that could cause loss of brake assist. A faulty check valve can result in a hard brake pedal, hissing noise, or reduced braking power. Replacing it ensures consistent vacuum retention and reliable brake performance.
Details:
VIN: WVWSV1164CM133375
Part Number: 1J0612181D (OE 1J0-612-181-D)
Compatibility: Fits VW Jetta 2011–2015 and other VW/Audi models using similar vacuum booster setup
Function: Maintains one-way vacuum flow to the brake booster, preventing pressure loss during engine shutdown or backflow
Condition: Used OEM -- inspect for cracks, loose fittings, or sticking valve operation before reuse
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