Genuine OEM Audi Engine Coolant Hose, part number 4G0121056L. This critical component is responsible for transporting coolant throughout the engine cooling system, ensuring efficient heat dissipation and maintaining optimal engine operating temperatures. Weighing 0.0902 kg and measuring 0.223 m in length, it features a specific routing geometry. Choosing genuine OEM ensures the correct material composition, pressure resistance, and routing geometry for reliable and leak-free coolant circulation.