Genuine OEM Volkswagen Engine Coolant Hose, part number 7T0122157AQ. This vital hose is part of the engine's cooling system, responsible for circulating coolant between various engine components and the radiator to dissipate heat and maintain optimal operating temperatures. It is a pre-formed, multi-branched hose, weighing 0.496 kg. Choosing genuine OEM ensures the correct material composition for heat and pressure resistance, precise routing geometry, and durable connections, preventing leaks and ensuring efficient cooling.