Genuine OEM Audi Engine Coolant Hose, part number 8R0121448J. This hose is designed to transport coolant throughout the engine's cooling system, playing a critical role in maintaining optimal operating temperatures. It is a vital component for heat exchange and engine longevity. Weighing 0.069 kg, this hose measures 0.15 m in length. Choosing a genuine OEM hose ensures the correct routing geometry, material composition, and resistance to temperature and pressure fluctuations, preventing leaks and premature failure.