Engine cooling systems are essential components in vehicles that help maintain optimal operating temperatures for the engine. They prevent overheating by circulating a coolant, usually a mixture of water and antifreeze, through the engine and radiator. As the engine generates heat during operation, the coolant absorbs this heat and carries it away, ensuring the engine runs efficiently and prolonging its lifespan. The main parts of an engine cooling system include the radiator, water pump, thermostat, and coolant. The radiator dissipates heat from the coolant into the air, while the water pump circulates the coolant throughout the system. The thermostat regulates the flow of coolant based on the engine's temperature, ensuring it operates within a safe range.