Genuine OEM Citroen Fuel Injector Seal, part number 198176. This small but critical component is designed to create a tight, leak-proof seal for the fuel injector, typically where it seats into the engine or fuel rail. Its primary function is to prevent fuel leaks and ensure that the fuel system maintains correct pressure for efficient fuel delivery and combustion. Made from durable, fuel-resistant rubber or plastic, this circular seal weighs approximately 0.01 kg. Using a genuine OEM injector seal guarantees the correct material composition and precise dimensions, which are vital for preventing fuel leaks, maintaining engine performance, and ensuring long-term reliability of the fuel system.