Genuine OEM Audi Joint Shaft Cap, part number 701521391. This component is designed to protect and cover a joint shaft, preventing the ingress of dirt, moisture, and other contaminants while retaining lubricants. It is typically located at the rear of the vehicle. Constructed from durable metal with an integrated rubber seal, it measures approximately 105mm in length, 105mm in width, and 43mm in height, weighing 0.131 kg. Choosing a genuine OEM cap ensures a precise fit and effective sealing, crucial for the longevity and smooth operation of drivetrain components.