Genuine OEM Audi Engine Coolant Tube, part number 1EA121055G. This rigid tube is an integral part of the engine cooling system, responsible for circulating coolant to maintain optimal engine operating temperatures. It connects various hoses and components within the cooling circuit. Weighing 0.1387 kg and measuring 0.435 m in length, this tube is engineered for precise routing and durable performance. Choosing a genuine OEM coolant tube ensures correct dimensions, material integrity, and resistance to thermal stress, crucial for preventing leaks and ensuring efficient engine cooling.