Genuine OEM Audi Coolant Hose, part number 4S0121101C. This flexible hose is designed to transfer coolant efficiently between various engine components. It is a key part of the engine's thermal management system, ensuring proper fluid circulation. Weighing 0.571 kg, it measures approximately 0.475 m in length. Opting for a genuine OEM coolant hose guarantees the correct material composition, flexibility, and resistance to high temperatures and pressures for long-lasting performance.