Genuine OEM Kia Fuel Filter O-Ring, part number 319293A800. This vital O-ring is designed to create a leak-proof seal within the fuel filter or water separator assembly. Its function is to prevent fuel leakage and maintain proper system pressure, ensuring efficient fuel delivery and filtration. Genuine OEM O-rings are made from specific fuel-resistant materials and precise dimensions, guaranteeing a reliable seal and long-term durability in harsh fuel environments.