Genuine OEM Volkswagen Sealing Flange, part number 03L121131M. This component acts as a connection point within the engine's cooling system, facilitating the flow of coolant between the engine block and associated hoses. It is typically mounted to the engine block. Made from durable metal, this flange ensures a secure and leak-free connection, vital for maintaining optimal engine operating temperatures. Genuine OEM parts guarantee precise fitment and the correct material properties for reliable engine cooling.