Genuine OEM Volkswagen Coolant Hose, part number 5Q0122063G. This hose is part of the engine's cooling system, designed to circulate coolant between various components like the engine block, radiator, and heater core. It is located in the engine bay, connecting to other cooling system parts. Constructed from reinforced, heat-resistant rubber to withstand high temperatures and pressures. Genuine OEM hoses ensure precise fitment and durability, preventing leaks and maintaining optimal engine operating temperature.