Genuine OEM Audi Engine Coolant Hose, part number 7L0121073F. This flexible hose is a vital component of the engine cooling system, responsible for transporting coolant to and from the engine and other cooling components. It is positioned in the upper right section of the cooling system assembly. Weighing approximately 0.07 kg and measuring 0.192 m in length, this hose is engineered for precise routing and secure connections. Choosing a genuine OEM coolant hose ensures the correct material composition, flexibility, and pressure resistance, which are crucial for preventing leaks and maintaining the cooling system's efficiency.