Genuine OEM Volkswagen Fuel Filler Neck Drain Hose, part number 4M0809937A. This essential component of the fuel system is specifically designed to drain any excess fuel or water that may accumulate around the fuel filler neck. It prevents fluid buildup and potential corrosion or damage to surrounding components. Weighing just 0.05 kg, this hose ensures proper fitment and fluid routing. Using genuine OEM parts guarantees the correct material resistance to fuel and environmental elements, ensuring long-term reliability.