Genuine OEM Audi Bypass Valve Pipe Seal, part number 057145625C. This O-ring seal is designed to prevent leaks in the bypass valve pipe assembly. It ensures a tight, secure connection within the engine's air management system. Weighing approximately 0.0016 kg and measuring 35mm in diameter, this small but critical component is made to factory specifications. Using a genuine OEM seal guarantees the correct material composition and precise dimensions for optimal sealing performance and long-term reliability, preventing costly air or fluid leaks.