About this part
What it does. Aisin Engine Coolant Thermostat & Housing Assembly Aisin 170-THT-023 is part of the cooling system that carries engine heat away and holds the engine at operating temperature.
Symptoms that point to this part
- Temperature gauge climbing
- Coolant puddles under the car
- Heater blowing cold
- Sweet coolant smell
Fitment. Catalogued as fitting 2022–2023 Lexus Nx250, 2023 Toyota Camry, 2022 Toyota Highlander, 2021–2022 Toyota Rav4 Prime, 2019–2021 Lexus Es300h, 2021 Toyota Sienna, 2021 Toyota Venza, 2019–2020 Toyota Rav4. Engine, sub-model and trim can narrow fitment further, so check those attributes on the listing before ordering.