Genuine OEM Volkswagen Coolant Hose, part number 5QF121049M. This hose is a vital component of the engine cooling system, responsible for circulating coolant between various engine components and the radiator. It ensures efficient heat transfer to maintain optimal engine operating temperatures. Weighing 1.067 kg, this hose is designed for durability and resistance to high temperatures and pressures. Using a genuine OEM coolant hose guarantees correct routing geometry, material composition, and resistance to coolant chemicals, preventing leaks and system failures.