Genuine OEM Hyundai Fuel Pump Module Seal, part number 311150W000. This critical component provides a secure, leak-proof seal for the fuel pump module where it mounts into the fuel tank. It prevents fuel and fuel vapor from escaping the tank and protects the fuel system from external contaminants. Located at the top opening of the fuel tank, it ensures proper sealing of the fuel pump assembly. Using a genuine OEM seal guarantees the correct material composition and precise dimensions for a perfect fit and long-lasting performance, crucial for fuel system safety and efficiency.