Genuine OEM Audi Coolant Flange, part number 1J0121087E. This Y-shaped plastic component serves as a connector and distributor for coolant hoses within the engine cooling system, ensuring proper flow and circulation. Made from durable, heat-resistant plastic, it weighs 0.022 kg. Using genuine OEM coolant flanges ensures precise hose connections and resistance to thermal cycling and chemical degradation, preventing leaks and maintaining cooling system integrity.