Genuine OEM Volkswagen Coolant Hose, part number 2HJ121086. This hose is designed to transport coolant within the engine's cooling system, connecting various components to ensure proper temperature regulation. It is part of the main coolant circuit. Constructed from high-quality rubber and reinforced materials to resist heat, pressure, and degradation. Genuine OEM hoses ensure exact fitment and durability, critical for preventing leaks and maintaining the integrity of the cooling system.