The 'WATER HOSE RADIATOR L UPPER Citroen HY -9/63' is an essential component for the cooling of vintage Citroën HY models produced up to September 1963. This hose connects the top of the radiator to the engine, ensuring efficient coolant circulation. Made from high-quality, heat-resistant materials, it ensures durability and longevity. Replacing worn hoses is crucial to prevent overheating and to keep the engine in optimal condition. Ideal for restoration projects or routine maintenance of your classic Citroën van.