Genuine OEM Audi Engine Oil Cooler Line Set, part number 4E0317817N. This set of lines is crucial for the engine's lubrication and cooling system, transporting engine oil to and from the oil cooler. By maintaining optimal engine oil temperatures, these lines ensure efficient lubrication and prevent overheating, which is vital for engine longevity and performance. The lines connect directly to the engine oil cooler assembly. Constructed from durable metal tubing with precision-engineered fittings, the set weighs approximately 0.272 kg. Choosing genuine OEM lines guarantees correct routing, pressure integrity, and material resistance to engine fluids and temperatures.