Genuine OEM Volkswagen Fuel Filler Neck, part number 4M4201135T. This component is responsible for safely guiding fuel from the external filler cap into the fuel tank. It forms a critical sealed pathway to prevent fuel leaks and vapours. Weighing 1.579 kg and measuring 0.96 m in length, this genuine OEM filler neck ensures correct routing geometry and material resistance to various fuel types, crucial for safety and emissions compliance.