Genuine OEM Volkswagen Fuel Tank Cap, part number 7L6201550J. This essential component is designed to securely seal the fuel tank opening, preventing fuel evaporation and maintaining the correct pressure within the fuel system. It is located at the fuel filler neck, providing a tight seal. Weighing 0.067 kg, this cap is constructed from durable plastic with an integrated tether. Choosing a genuine OEM fuel tank cap ensures a precise fit and proper sealing, which is critical for preventing fuel loss, maintaining fuel system integrity, and complying with emissions regulations by preventing evaporative emissions.