Genuine OEM Audi Engine Coolant Hose, part number 8V0121073. This hose is designed to carry engine coolant between various components, playing a critical role in maintaining optimal engine operating temperature. Weighing approximately 0.18 kg and measuring 0.37 meters in length, it is engineered for precise fitment. Choosing a genuine OEM coolant hose ensures the correct material composition, routing geometry, and resistance to temperature and pressure fluctuations, preventing leaks and premature failure.