Continuous combustion could cause your engine to give up if not for your cooling system – which eliminates about one-third of the heat produced by the engine. Some of the heat is used for other auto processes, but too much of it could lead the engine to break down if the heat is not dissipated.

One of the principal components of the engine's cooling system is the radiator fan, sometimes also called condenser fan or automotive fan. It is a rotating device whose primary function is to dissipate heat. It has a fan motor, a fan blade, and a fan shroud.

The fan motor powers the radiator fan and keeps it running, while the fan blades are the curved propellers that project from the central hub and runs around it to create air. Most fans have four blades but some have as much as eleven. The fan shroud, on the other hand, is a plastic hood that protects the blades. It encloses the fan, and because of that, it can direct air through the core and prevent it from coming back and through the fan again. Thus, cool air is concentrated. The fan shroud must be mounted properly, though, to ensure that it works well. Its durability may be determined by how it responds to vibration while you are on the road.

These parts of the radiator fan are most often made of tough plastic. Considering that the radiator fan plays a central role in the engine's cooling system, it must not be neglected and must be replaced immediately if even a tiny crack appears on one of its blades. Otherwise, heat would accumulate in the engine and cause it to break down.