Genuine OEM Volkswagen Engine Coolant Hose, part number 3Q0122109B. This hose is a vital component of the engine cooling system, responsible for transporting coolant to maintain optimal engine operating temperatures. Its specific routing and durable material construction ensure efficient heat exchange and leak-free operation. Weighing 0.547 kg, this genuine OEM hose guarantees precise fitment and resistance to temperature extremes and pressure, crucial for preventing engine overheating and maintaining system integrity.