Genuine OEM Volkswagen Bung, part number N91150301. This plug or stopper is designed to effectively seal openings or cover access holes in various automotive assemblies. It is positioned as shown in the diagram at reference 12. Manufactured from durable materials, this bung provides a precise fit to maintain the integrity of the sealed area. Genuine OEM components ensure the correct material composition and dimensions for a reliable, long-term seal against environmental contaminants.