Genuine OEM Audi Rear Differential Cover Plate, part number 0A2409131A. This robust cast metal plate serves as a protective cover for the internal components of the rear differential assembly. It is essential for sealing the differential, retaining lubricating fluid, and shielding gears from external damage and contaminants. Positioned at the rear of the vehicle's drivetrain, it is a key structural element. Weighing 1.754 kg and measuring 0.22m in diameter, this plate is engineered for strength and precise fitment. Using a genuine OEM cover plate ensures correct material composition, structural integrity, and exact bolt pattern alignment, critical for maintaining the differential's sealed environment and reliable operation.