Genuine OEM Audi Automatic Transmission Oil Pump Seal, part number 0C8321243. This critical component is designed to prevent fluid leaks from the automatic transmission oil pump, ensuring proper lubrication and hydraulic pressure within the transmission system. It is a circular seal, approximately 0.066m in outer diameter, typically constructed from durable rubber with an internal spring for consistent sealing pressure. Choosing a genuine OEM seal guarantees the correct material composition, precise dimensions, and resistance to transmission fluid and operating temperatures, preventing costly leaks and transmission damage.