Genuine OEM Volkswagen Coolant Flow Return Hose, part number 2K0121156G. This hose is a crucial part of the engine cooling system, facilitating the circulation of coolant for efficient heat exchange. It is designed to handle the specific flow and return paths of engine coolant. Weighing 0.292 kg, this hose features a complex, branched design for precise routing. Choosing genuine OEM ensures the correct material properties for resistance to coolant and heat, along with exact dimensions for a secure and leak-free connection.