Genuine OEM Volkswagen Breather Line, part number 3Q0201931G. This line is crucial for ventilating the fuel system, allowing for proper pressure equalization and managing evaporative emissions. It connects components within the fuel tank and evaporative emissions assembly. Weighing approximately 0.047 kg, this lightweight component is designed for precise fitment. Using a genuine OEM breather line ensures correct material composition and routing, preventing leaks and maintaining the integrity of the vehicle's emissions system.