Genuine OEM Audi Engine Coolant Pipe, part number 4M0121485CB. This pipe is essential for transporting engine coolant, playing a vital role in regulating the engine's operating temperature. It is positioned on the right side of the engine cooling system. Weighing approximately 0.085 kg and measuring 0.255 meters in length, this pipe is designed with specific bends and connections. Choosing a genuine OEM coolant pipe ensures the correct routing geometry, material resistance to heat and pressure, and a perfect seal, preventing leaks and maintaining cooling system integrity.