Genuine OEM Volkswagen Coolant Hose, part number 2H0122157AK. This hose transports coolant within the engine cooling system, facilitating heat exchange and maintaining optimal engine operating temperature. It is positioned as a key fluid conduit within the cooling circuit. Weighing 0.237 kg and measuring 0.43 m in length, this hose is constructed from durable materials designed for high-temperature and pressure resistance. Choosing a genuine OEM hose ensures precise fitment, correct routing geometry, and resistance to coolant chemicals for long-term reliability.