Genuine Toyota Prius Thermostat

Engine Coolant Thermostat

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1 Thermostat found

  • Toyota Prius Thermostat - 90916-03093
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    Toyota Prius Thermostat

    Part Number: 90916-03093
    • Manufacturer Note: *WAX 82-95
    $21.99 MSRP: $30.74
    You Save: $8.75 (29%)
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    Fits the following Vehicles:
    • 2001-2009 Toyota Prius | 4 Cyl 1.5L | 1NZFXE; 1NZFXE; NHW11L-AEEEBA, NHW11L-AEEEBK, NHW20L-AHEEBA, NHW20L-AHEEBK
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Toyota Prius Thermostat Parts Questions & Answers

  • Q: How do I replace the thermostat in my Toyota Prius?
    A: Before assuming the thermostat is the cause of a cooling system problem, it is important to perform a thorough check. Verify the coolant level, drive belt tension, and the operation of the temperature gauge or light. If the engine takes a long time to warm up, indicating a stuck-open thermostat, it should be replaced with a new one. In case the engine runs hot and the right (passenger's side) radiator hose is not hot while the engine is, it suggests a closed thermostat preventing coolant flow to the radiator. In this situation, replacing the thermostat is necessary. Conversely, if the hose is hot, it signifies that the coolant is flowing and the thermostat is open. For the thermostat replacement, start by removing the radiator cover and plastic lower engine covers for 2004 through 2009 models. Drain the coolant from the radiator. On 2010 and later models, disconnect the coolant hose from the inlet air filter, detach the wiring harness clamp, and remove the inlet air filter assembly by removing three bolts and the dipstick tube for clearance. Detach the thermostat housing from the engine, being prepared for some coolant spillage as the gasket seal is broken. The radiator hose can remain attached unless the housing itself needs replacement. Remove the thermostat, noting its installation direction, and thoroughly clean the sealing surfaces. During installation, fit a new gasket evenly onto the thermostat, ensuring proper alignment. Install the thermostat and housing, positioning the jiggle pin at the highest point. Tighten the housing fasteners to the specified torque, and then reinstall the remaining components in the reverse order of removal. Refill the cooling system, start the engine, and check for any leaks or issues with the system's operation.

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About Toyota PRIUS Thermostat

Everything installed in your Toyota PRIUS vehicle needs to be kept in good working condition. The online catalog we provide will get you through the ordering process safely and securely. All genuine Toyota Thermostat from us are shipped directly from authorized Toyota Dealer. If you want search for PRIUS Thermostat fast and easily, we assure you that you get to opt for one in less the time.