Genuine OEM Volkswagen backrest pivot pin, part number N91091601. This pin serves as the central pivot point for the seat backrest, allowing for smooth folding and adjustment. It is engineered to withstand the mechanical stresses of daily seat operation while maintaining precise alignment. Genuine OEM pins are manufactured to exact tolerances to prevent play or rattling in the seat mechanism, ensuring long-term structural integrity and smooth, quiet operation of the folding seat system.