Genuine OEM Audi Coolant Hose, part number 4G0819342B. This hose is designed to carry coolant, playing a critical role in regulating engine temperature and preventing overheating. It is an integral component within the engine cooling system. Weighing 0.178 kg and measuring 0.21 m in length, this hose is manufactured to precise factory specifications. Choosing a genuine OEM coolant hose ensures correct routing geometry, material resistance to heat and pressure, and a leak-free connection for reliable long-term performance.