Genuine OEM Audi Rear Wiper Shaft Seal, part number 8D9955758A. This rubber seal is designed to create a watertight barrier around the rear windshield wiper shaft where it passes through the vehicle body, preventing water and debris from entering the interior. It is positioned at the rear of the vehicle. Weighing 0.0061 kg and measuring approximately 37mm in diameter, it ensures a precise fit. Genuine OEM seals are made from specific rubber compounds to resist environmental degradation and maintain flexibility, ensuring long-term protection against leaks.