Genuine OEM Audi Engine Coolant Pipe, part number 4M0819377N. This rigid pipe is a vital component in the engine cooling system, responsible for circulating coolant to maintain optimal engine operating temperature. It serves as a distribution point, connecting various hoses within the cooling circuit. Weighing approximately 0.11 kg and measuring 0.23 m in length, it is engineered for exact fitment. Choosing a genuine OEM coolant pipe ensures the correct material integrity, resistance to temperature fluctuations, and precise routing for effective thermal management and long-term engine health.