Genuine OEM Volkswagen Engine Coolant Hose, part number 5WA121049R. This complex hose assembly is located on the left side of the engine bay and is responsible for transporting engine coolant, crucial for regulating engine temperature. It connects various components within the cooling system, ensuring efficient heat transfer. Weighing 1.267 kg and measuring 0.65 m in length, this genuine OEM hose guarantees the correct routing geometry, material resistance to heat and pressure, and leak-free performance.