This FAE thermostat, part number 5202482, is designed to regulate the engine's operating temperature. It plays a crucial role in the cooling system by controlling the flow of coolant to the radiator. Proper functioning of the thermostat is essential for maintaining the engine within its ideal temperature range, preventing overheating and ensuring efficient performance. This component is built to meet the demands of modern engines and provide reliable temperature control. When the engine is cold, the thermostat remains closed, allowing the coolant to circulate only within the engine block to reach operating temperature faster. Once the coolant reaches a specific temperature, the thermostat opens, allowing coolant to flow to the radiator for cooling.