Genuine OEM Audi Engine Coolant Hose, part number 4KE819460C. This hose is designed to circulate coolant within the engine's thermal management system, crucial for regulating engine temperature and preventing overheating. It is positioned as a key component in the engine cooling circuit. Weighing 0.073 kg and measuring approximately 21 cm in length, it is engineered for specific routing and pressure. Choosing a genuine OEM hose ensures the correct material composition and precise routing geometry, preventing leaks and maintaining system integrity under thermal stress.