Genuine OEM Volkswagen Rear Seal Channel Reinforcement, part number 3G9813331A. This structural component is designed to strengthen the seal channel located in the rear of the vehicle, specifically on the left side. It plays a vital role in maintaining the structural integrity of the body and ensuring effective sealing against water and dust ingress around the tailgate opening. Weighing 2.838 kg, this genuine OEM reinforcement ensures the precise fit and robust construction necessary to restore the vehicle's original crash safety performance and body rigidity.