Genuine OEM Audi Engine Coolant Hose, part number 8J0121156B. This hose is a vital component of the engine cooling system, responsible for transporting coolant between various engine components and the radiator. It ensures efficient heat exchange to maintain optimal engine operating temperatures. Made from durable, reinforced rubber, it weighs 0.0441 kg and measures 0.23 meters in length. Genuine OEM hoses guarantee correct routing geometry, material composition, and resistance to high temperatures and pressures for reliable, leak-free performance.