Genuine OEM Audi Engine Coolant Pipe with Hose, part number 1EA121055D. This component is crucial for circulating coolant throughout the engine cooling system, maintaining optimal operating temperatures and preventing overheating. It is integrated within the complex network of cooling lines. Weighing 0.1309 kg and measuring 0.438 m in length, this pipe and hose assembly is designed for specific routing and fluid resistance. Using a genuine OEM coolant pipe with hose ensures correct routing geometry, material compatibility, and leak-free performance, which is vital for engine longevity.