Genuine OEM Volkswagen Engine Coolant Hose, part number 5QA819307C. This hose is a vital component of the engine cooling system, responsible for circulating coolant to maintain optimal engine operating temperatures. It is part of a complex network of hoses and pipes. Weighing 0.0367 kg, this hose is engineered for specific pressure and temperature resistance. Using a genuine OEM coolant hose ensures the correct material composition, routing geometry, and durability to prevent leaks and maintain cooling system integrity.