Genuine OEM Volkswagen Coolant Hose With Valve, part number 7P0122073B. This assembly regulates coolant flow within the engine cooling system, maintaining optimal operating temperatures. It is typically found within the engine bay, connecting various cooling system components. Constructed from durable rubber and plastic, it is designed for long-term reliability. Choosing a genuine OEM coolant hose ensures precise fitment, correct flow characteristics, and resistance to engine fluids and temperatures, preventing leaks and system malfunctions.