Genuine OEM Volkswagen Coolant Flange, part number 038121132C. This essential component serves as a junction point, connecting various hoses and sensors within the engine's cooling circuit to manage coolant flow. It is typically mounted to the engine block or cylinder head, directing coolant to and from other cooling system components. Manufactured from high-quality, heat-resistant plastic, it weighs approximately 0.176 kg. Choosing a genuine OEM coolant flange ensures precise dimensions, proper sealing surfaces, and resistance to thermal cycling for a leak-free and reliable cooling system.