Genuine OEM Audi Exterior Mirror Housing, part number 1K2857507BD9B9. This critical component encloses and protects the internal mechanisms and wiring of the side mirror assembly. It forms the main structural body of the exterior mirror. The housing is finished in Satin Black (9B9) and weighs approximately 1.1 kg. Choosing a genuine OEM mirror housing ensures exact mounting points, proper sealing against elements, and a perfect match to the vehicle's original aesthetic and structural integrity.