Genuine OEM Audi Lower Radiator Hose, part number 8K0121109AD. This hose is crucial for transporting coolant from the radiator, maintaining optimal engine temperature. It is positioned on the lower left side of the cooling system. Made from durable rubber and plastic, it measures approximately 0.17m in length. Genuine OEM hoses ensure precise fitment and resistance to temperature extremes and coolant chemicals, preventing leaks and premature failure.