Genuine OEM Audi Engine Coolant Hose, part number 06D121057L. This essential hose is responsible for transferring coolant throughout the engine cooling system, ensuring efficient heat dissipation and maintaining the engine's optimal operating temperature. Its specific molded shape allows for precise routing and connection. Constructed from high-quality, heat-resistant black rubber, it weighs 0.048 kg and measures approximately 0.142 meters in length. Using a genuine OEM coolant hose guarantees the correct material properties, pressure resistance, and exact fitment, which are crucial for preventing leaks and ensuring the longevity of the cooling system.