Genuine OEM Volkswagen Gewindeeinsatz (threaded insert), part number 070103136. This component provides a durable and precise threaded hole within engine block or other metal components, allowing for secure attachment of bolts or studs. It is essential for maintaining the integrity of engine assemblies, marked as item 3 in the diagram. Made from high-strength metal, it resists stripping and wear. Genuine OEM threaded inserts are manufactured to exact specifications for reliable and secure fastening.