Genuine OEM Audi Coolant Hose with Coupling, part number 7L8122051C. This essential hose carries coolant within the engine cooling system, facilitating heat transfer and maintaining optimal engine temperature. It is positioned to connect to the radiator, ensuring proper circulation. Weighing 0.516 kg and measuring 0.457 m in length, it is constructed from durable materials. Choosing a genuine OEM coolant hose ensures precise routing geometry, correct fluid resistance, and robust connections to prevent leaks and maintain the integrity of the cooling system.