Genuine OEM Volkswagen Seal Bolt With Sealing Ring, part number 01V409057. This part functions as a threaded fastener designed to seal openings within the transmission assembly, preventing the loss of transmission fluid and the ingress of contaminants. It is located in the transmission system. Made from high-strength steel with a precisely fitted sealing ring for maximum effectiveness. Genuine OEM parts are critical for maintaining the sealed integrity of the transmission and preventing costly repairs.