Genuine OEM Audi Fuel Vacuum Tandem Pump Seal, part number 03G145215B. This precisely engineered seal is designed to create a leak-proof barrier for the fuel vacuum tandem pump, preventing fluid or air loss and maintaining optimal system operation. It is an integral component within the pump assembly. Weighing 0.018 kg and measuring 0.145 meters in length, its irregular shape ensures a perfect fit. Using a genuine OEM seal guarantees the correct material composition and dimensional accuracy, which are vital for long-term sealing performance and preventing costly leaks in critical fuel and vacuum systems.