Genuine OEM Volkswagen Exterior Mirror Housing, part number 5H2857508S9B9. This component forms the main body of the side mirror assembly, providing structural support for the mirror glass, motor, and other internal mechanisms. Finished in Satin Black (9B9), it ensures a cohesive exterior appearance. Genuine OEM mirror housings guarantee precise fitment, durability, and compatibility with other mirror components, which is vital for proper mirror function and safety.