Genuine OEM Audi Engine Coolant Hose, part number 8W0121049A. This flexible hose is vital for transporting coolant throughout the engine cooling system, helping to regulate engine temperature. It connects various components within the cooling circuit, ensuring proper fluid circulation. Weighing 0.168 kg and measuring 0.25m in length, this hose is designed for specific routing and performance. Choosing genuine OEM ensures the correct routing geometry, flexibility, and resistance to coolant chemicals and high temperatures.