Genuine OEM Volkswagen Engine Coolant Hose, part number 5Q0122051AR. This critical hose is responsible for transporting coolant within the engine cooling system, playing a vital role in regulating engine temperature. It connects directly to the radiator, ensuring proper circulation. Weighing 0.646 kg, this hose is designed for durability. Choosing a genuine OEM coolant hose guarantees the correct material composition, heat resistance, and precise routing geometry, which are essential for preventing leaks and maintaining optimal engine cooling performance.