Genuine OEM Audi Engine Coolant Hose, part number 4M0265374AB. This hose is responsible for transporting coolant within the engine cooling system, playing a vital role in maintaining optimal engine operating temperature. It is a short, curved hose, weighing 0.046 kg and measuring 0.11 meters in length. Using a genuine OEM hose guarantees the correct material composition, precise dimensions, and resistance to thermal and chemical stresses for long-term durability and leak prevention.