- Tested to OE specifications and standards.
- Adjusts flow to the radiator to maintain a stable temperature.
- Responsible for moderating the temperature of a vehicle’s engine.
- Allows coolant to circulate and keeps the engine cool.
The thermostat is like a valve that opens and closes as a function of its temperature.
The thermostat isolates the engine from the radiator until it has reached a certain minimum temperature.
Without a thermostat, the engine would always lose heat to the radiator and take longer to warm up.
The thermostat flow restriction helps to increase the pressure in the cooling system, which makes it harder for the coolant to boil in the water pump.
It is the job of the thermostat to regulate the temperature between these extremes, creating a happy medium that promotes optimum driving by controlling the flow of coolant that can circulate the engine.
| Specifications | |
| Brand | Genuine Toyota |
| Part Number | 90916-03089 |
| Fitment Type | Direct Replacement |
| Item Dimensions | 3.2 x 2.9 x 2.5 inches |
Working Hours
Monday to Thursday - 8 am to 4 pm
Friday - 8:30 am till 12:30 pm
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