Genuine OEM Citroen Differential Shaft Seal, part number 9806740980. This critical sealing component is designed to prevent fluid leakage from the differential shaft, maintaining proper lubrication within the differential assembly. It is typically installed where the drive shaft exits the differential housing. The seal measures 35mm inner diameter, 54mm outer diameter, and 8.5mm thickness. Choosing a genuine OEM shaft seal ensures the correct material composition, lip design, and precise dimensions for effective sealing and long-term durability under varying operating conditions.