Genuine OEM Volkswagen Exterior Mirror Housing, part number 5NN857507R9B9. This housing forms the main structural body of the vehicle's exterior side mirror, protecting internal mechanisms and providing a mounting point for the mirror glass and painted cap. It is positioned on the exterior of the vehicle, as part of the side mirror assembly. The housing features a durable Satin Black 9B9 finish. Choosing genuine OEM ensures proper fitment and compatibility with other mirror components, crucial for safety and functionality.