Genuine OEM Citroen Turbo Lubrication Pipe Flange Seal, part number 9833149980. This seal is specifically designed to create a leak-proof connection at the flange where the lubrication pipe attaches to the turbocharger assembly. Its function is to prevent oil leaks, which are crucial for maintaining proper turbocharger operation and engine health. Choosing a genuine OEM seal ensures the correct material composition, precise dimensions, and heat resistance required for the demanding environment of the turbocharger system, preventing premature failures and costly repairs.