What is the primary function of a radiator in an engine cooling system?

The primary function of a radiator in an engine cooling system is to disperse heat from the engine coolant into the air. As the engine operates, it generates heat, and the coolant absorbs this heat to maintain an optimal operating temperature. The heated coolant then flows to the radiator, where it is cooled as air passes through the radiator fins. This process is crucial for preventing the engine from overheating and ensuring efficient performance.

The ability of the radiator to effectively transfer this heat to the surrounding air is essential for maintaining the balance of the engine’s thermal management system. Proper functioning of the radiator helps in ensuring that the engine operates within the designed temperature range, thereby enhancing vehicle reliability and performance.