Genuine OEM Volkswagen O-ring, part number 09A927322A. This O-ring functions as a seal to prevent fluid leaks within the transmission valve body assembly. It is specifically designed to fit precisely in its designated groove. Made from high-quality rubber, it maintains its sealing properties under pressure and temperature variations. Genuine OEM O-rings are critical for transmission reliability, ensuring correct fluid pressure and preventing leaks that could lead to component damage.