Genuine OEM Volkswagen Left Radiator Hose, part number 2Q0122101CB. This vital hose is responsible for circulating engine coolant between the engine and the radiator, playing a critical role in maintaining optimal engine operating temperatures. Positioned on the left side, it is designed to withstand high temperatures and pressures. Weighing 0.656 kg, this genuine OEM hose ensures correct routing geometry, material resistance to coolant chemicals, and proper sealing, preventing leaks and maintaining efficient engine cooling.