Genuine OEM Volkswagen Rear Light Housing, part number 3G9813319. This part functions as the structural housing that secures the rear light assembly to the vehicle's body. It is positioned on the rear of the vehicle, typically on the left or right side. Constructed from durable plastic, it ensures a precise fit and secure mounting for the light unit. Genuine OEM parts are crucial for lighting components to guarantee correct alignment, weather sealing, and adherence to factory specifications.