Genuine OEM Audi Coolant Hose With Coupling, part number 7M3122073AR. This hose is designed to circulate coolant efficiently within the engine cooling system, playing a vital role in maintaining the engine's operating temperature. It connects specific components within the engine bay, ensuring proper coolant flow through the system. Made from vulcanised rubber, this hose measures approximately 0.38 meters in length. Opting for a genuine OEM coolant hose guarantees the correct material properties, resistance to thermal stress, and precise coupling for a secure, leak-free connection, essential for long-term engine health.