Genuine OEM Audi Engine Coolant Pipe, part number 4L0121400. This pipe directs coolant flow through the engine, playing a vital role in the vehicle's thermal management system. It is located on the right side of the engine assembly. Weighing 0.2063 kg and measuring 0.21 m in length, this metal pipe ensures precise coolant routing. Genuine OEM coolant pipes provide exact fitment, durable materials, and resistance to corrosion and pressure, ensuring leak-free and reliable coolant circulation.