Genuine OEM Volkswagen Coolant Hose, part number 7P0121101C. This hose is an integral part of the engine cooling system, responsible for circulating coolant to maintain optimal engine operating temperatures. Weighing 0.041 kg, it is engineered to withstand high temperatures and pressures. Choosing a genuine OEM coolant hose ensures the correct material composition for resistance to coolant chemicals, precise dimensions for leak-free connections, and durability under thermal cycling, preventing overheating and system failures.