Description: The radiator fan is a type of fan used in automobiles to cool the radiator. By doing so, it helps with regulating engine temperature. It’s, therefore, also known as the engine cooling fan and usually mounted between the radiator and engine. In some vehicles, the fan sits between the grille and the radiator. Radiator fans are usually a set of blades attached to a hub. The assembly can be all metal or plastic, and often made into different designs. The blades are curved or straight, long or short, and so on. A car radiator fan can also be electric and spun by an electric motor or mechanical and powered by the engine. .