Genuine OEM Audi Crankcase Breather Pipe Gasket, part number 06F145757F. This gasket provides a crucial seal for the crankcase breather pipe, preventing vacuum leaks and ensuring proper crankcase ventilation. It is positioned within the engine's crankcase ventilation system. Measuring approximately 55mm x 21mm, this gasket is made from a material designed to withstand engine temperatures and pressures. Using a genuine OEM gasket ensures a precise fit and reliable seal, which is essential for maintaining engine performance, emissions control, and preventing oil consumption.