Genuine OEM Volkswagen Grommet, part number 4M0809940. This grommet is a ring or seal used to close an opening, often to prevent leakage or protect passing wires or cables. It is located in the underbody area of the vehicle. Made from rubber, this part has a diameter of 0.021 meters and a height of 0.017 meters. Genuine OEM grommets provide a precise fit to seal openings effectively and protect wiring harnesses from abrasion and environmental factors.