This NRF thermostat is designed to regulate the flow of coolant within your vehicle's engine. By opening and closing at specific temperatures, it helps maintain the optimal operating temperature, preventing overheating and ensuring efficient performance. Proper functioning of the thermostat is crucial for engine longevity and fuel economy. A faulty thermostat can lead to either an engine running too cold or too hot, both of which can cause significant damage and reduce efficiency. NRF is a trusted brand known for its quality cooling system components. This thermostat is built to meet or exceed OE specifications, providing a reliable solution for your vehicle's needs.