Genuine OEM Ford Fuel Tank System Grommet, part number 1235808. This grommet serves to seal an opening in the fuel tank system, preventing the escape of fuel vapors and the ingress of contaminants. It is typically made from a durable, fuel-resistant rubber or synthetic material to ensure longevity and integrity under various operating conditions. Proper sealing is crucial for emissions control and fuel system efficiency. Genuine OEM parts are engineered to the exact specifications required for a secure and leak-free seal, maintaining the safety and performance of the fuel system.