Genuine OEM Audi Coolant Hose, part number 05A121104B. This flexible hose is designed to connect various components within the engine cooling system, ensuring the efficient transfer of coolant. It plays a vital role in maintaining optimal engine operating temperatures. Made from high-quality rubber, it measures approximately 0.17m in length. Opting for a genuine OEM coolant hose guarantees the correct routing geometry, material resistance to heat and pressure, and long-term durability, preventing leaks and system failures.