Genuine OEM Audi Engine Coolant Pipe, part number 04L121157AS. This rigid pipe is located on the right side of the engine and is crucial for transporting coolant throughout the engine cooling system, maintaining optimal operating temperatures. Its precise routing and durable construction ensure efficient coolant flow and resistance to thermal stress. Using a genuine OEM coolant pipe guarantees correct fitment, leak-free operation, and long-term reliability within the demanding engine environment.