Genuine OEM Volkswagen Coolant Hose, part number 7P0121101H. This hose is a vital component of the engine cooling system, responsible for carrying coolant between various engine components to regulate temperature. It is positioned within the engine cooling circuit. Weighing 0.045 kg and measuring 0.14m in length, this hose is designed for specific routing and pressure resistance. Using a genuine OEM coolant hose ensures the correct material composition, heat resistance, and precise fitment, preventing leaks and maintaining the integrity of the cooling system.