Genuine OEM Audi Exterior Mirror Housing, part number 1S1857507BG9B9. This housing, finished in Satin Black (colour code 9B9), is designed to enclose and protect the internal components of the vehicle's exterior side mirror. It provides structural integrity and contributes to the vehicle's aesthetic appeal. Weighing approximately 1.52 kg, it is a robust component. Using a genuine OEM mirror housing ensures precise fitment, factory-matched finish, and durable material quality, crucial for maintaining the mirror's functionality and the vehicle's exterior appearance.