This is a genuine TOYOTA thermostat, part number 90916-02598, manufactured in Japan. It is a critical component of your vehicle's cooling system, responsible for controlling the flow of coolant to the radiator. By opening and closing at specific temperatures, the thermostat maintains your engine's optimal operating temperature, which is essential for fuel efficiency, emissions control, and overall engine longevity. Proper functioning of the thermostat prevents your engine from overheating or running too cold. Overheating can lead to severe engine damage, while an engine that runs too cold can result in poor performance and increased wear. Replacing a faulty thermostat with a genuine TOYOTA part ensures compatibility and reliability, maintaining the integrity of your vehicle's cooling system. This thermostat is engineered to meet TOYOTA's stringent quality standards, providing a direct fit and reliable operation. It is designed for specific TOYOTA models, ensuring that it will integrate seamlessly with your existing cooling system components.
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