Genuine OEM Volkswagen Coolant Hose, part number 3QF122157M. This hose is a critical component of the engine cooling system, responsible for transporting coolant. It is positioned within the cooling circuit, connecting various components to facilitate fluid circulation. Made from high-quality, heat-resistant rubber, it ensures durability. Genuine OEM coolant hoses are manufactured to withstand extreme temperatures and pressures, preventing leaks and ensuring system integrity.