Genuine OEM Volkswagen Engine Coolant Hose, part number 2H0121073BA. This hose is designed to transport engine coolant, playing a critical role in maintaining optimal engine operating temperature. It is an integral component of the engine cooling system. Weighing 0.2 kg and measuring 0.3 m in length, this hose is manufactured to exact factory specifications. Choosing a genuine OEM hose ensures correct routing geometry, material composition, and resistance to temperature and pressure fluctuations, preventing leaks and premature failure.