Genuine OEM Audi Fuel Line, part number 0P2133986. This line is responsible for the secure transport of fuel within the engine bay, ensuring consistent pressure and delivery to the fuel system components. It is positioned within the engine fuel supply assembly as shown in the diagram. Genuine OEM fuel lines are built to strict safety standards, featuring the correct material composition and coupling geometry to prevent leaks and ensure long-term durability under high-pressure conditions.