Genuine OEM Volkswagen Engine Coolant Flange Pipe Union, part number 07Z121131E. This component serves as a critical connection point within the engine cooling system, facilitating the flow of coolant between various parts. It is specifically designed for the left side of the engine assembly. Constructed from durable metal, it weighs 0.205 kg. Using a genuine OEM flange pipe union ensures precise fitment, leak-free connections, and resistance to corrosion and temperature extremes, which are essential for the reliable operation of the engine's cooling system.