Genuine OEM Audi Fuel Filler Neck Insert, part number 4M8809906. This component is crucial for guiding fuel into the tank and providing a secure interface for the fuel nozzle. It fits precisely inside the fuel filler housing assembly. Weighing approximately 0.461 kg, this insert measures 0.305m in length. Using a genuine OEM part ensures correct fitment and material compatibility for safe and efficient fuel delivery.