Genuine OEM Volkswagen Coolant Hose, part number 5Q0819350E. This hose assembly is a vital part of the engine cooling system, responsible for circulating coolant between the engine, radiator, and other components to regulate engine temperature. It is constructed from high-quality rubber to withstand high temperatures and pressures, as well as chemical exposure from coolant. Measuring 0.545 meters in length and weighing 0.419 kg, it is designed for specific routing within the engine bay. Using a genuine OEM coolant hose ensures precise fitment, proper sealing, and resistance to degradation, preventing leaks and maintaining optimal engine operating temperatures.