Genuine OEM Audi Transmission Wave Oil Seal, part number 0CK331261C. This critical component is designed to effectively seal fluid within the automatic transmission, preventing leaks and maintaining proper fluid levels and pressure. Made from high-quality rubber and metal, it ensures a durable and reliable seal. Using a genuine OEM seal guarantees the precise dimensions, material composition, and sealing characteristics required for the demanding environment of an automatic transmission, preventing costly fluid loss and component damage.