Product Description The Thermostat with part number 90916-03089 is a critical component in Toyota vehicles that helps regulate the engine's temperature. The thermostat is a temperature-sensitive valve located in the engine cooling system, which opens and closes to control the flow of coolant through the engine. Key Functions: Regulating Engine Temperature: The thermostat ensures that the engine reaches and maintains an optimal operating temperature. When the engine is cold, the thermostat stays closed to allow the engine to warm up quickly. Once the engine reaches the correct temperature, the thermostat opens to allow coolant to flow and prevent overheating. Preventing Overheating: By controlling the coolant flow, the thermostat helps prevent the engine from becoming too hot, which could cause damage to engine components such as the cylinder head, pistons, and gaskets. Improving Fuel Efficiency: Maintaining the proper engine temperature improves fuel efficiency, as the engine operates more effectively when it reaches its ideal operating temperature. Protecting the Engine: The thermostat helps prevent excessive wear on the engine by ensuring that it does not operate at too high or too low of a temperature. If the thermostat becomes stuck in either the open or closed position, it can lead to engine overheating or poor engine performance. Therefore, it’s important to replace a faulty thermostat, such as 90916-03089, to maintain proper engine function and avoid engine damage. Show more.. Additional Information Product Condition New Product SKU 90916-03089 Country of Manufactured Japan Packing Height (in inches) 12.00 Packing Width (in inches) 12.00 Packing Weight (in pounds) 0.11 Show less..
