Genuine OEM Volkswagen Split Cotter, part number 113109651A. This part is a split pin or cotter pin used to secure other components, often in mechanical assemblies. It is marked as number 9 in the diagram, appearing to be part of the valve train or related assembly. The precise material and dimensions are crucial for its locking function. Genuine OEM split cotters provide the correct tensile strength and corrosion resistance for secure, long-lasting fastening.