Genuine OEM Volkswagen Coolant Hose, part number 4M0121036M. This branched hose assembly is vital for circulating engine coolant throughout the cooling system, ensuring proper thermal management. It includes an integrated port designed to accommodate a temperature sender, allowing for accurate monitoring of coolant temperature. Measuring 0.58m in length and weighing 0.516 kg, this hose is engineered for specific routing and connections within the engine bay. Choosing a genuine OEM coolant hose guarantees the correct material resistance to heat and pressure, precise routing geometry, and a perfectly sealed connection for the temperature sender, preventing leaks and ensuring accurate sensor readings.