Genuine OEM Volkswagen Coolant Hose, part number 5QN122157C. This hose is a vital component of the engine cooling system, responsible for carrying coolant to maintain optimal engine temperature. Weighing 0.205 kg, it features a specific routing and connection points within the cooling system. Choosing a genuine OEM coolant hose ensures resistance to temperature extremes, proper routing geometry, and a leak-free connection for reliable engine cooling.