Genuine OEM Audi Bracket for Alternator, part number 03L903139R. This bracket serves as the primary mounting point for the alternator and may also support the refrigerant compressor within the engine bay. It is positioned on the engine block. Constructed from heavy-duty metal, it ensures a secure and stable mounting for these critical components. Genuine OEM brackets are essential for maintaining the correct alignment and vibration damping required for the alternator and compressor to function correctly and reliably.