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2017 Toyota Yaris Thermostat

2 items

Upgrade your vehicle's thermostat with A-Premium's high-quality options. Choose reliability and durability for a smoother ride.

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Engine Coolant Thermostat for Toyota Prius Tacoma 4Runner Yaris Mitsubishi 82℃Engine Coolant Thermostat for Toyota Prius Tacoma 4Runner Yaris Mitsubishi 82℃
A-Premium®Part # APTHE041
Engine Coolant Thermostat for Toyota Prius Tacoma 4Runner Yaris Mitsubishi 82℃
4.685 Reviews
$26.99
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2-year warranty
90 days free return
Fits 1993 - 2005 Lexus GS300, 2001 - 2005 Lexus IS300, 1992 - 2000 Lexus SC300, 2009 - 2010 Mitsubishi Lancer, 2011 - 2015 Mitsubishi Lancer, 2008 - 2010 Mitsubishi Outlander, 2004 - 2006 Scion xA, 2004 - 2006 Scion xB, 1996 - 2000 Toyota 4Runner, 2010 - 2010 Toyota 4Runner, 2000 - 2005 Toyota Echo, 1991 - 1997 Toyota Previa, 2001 - 2009 Toyota Prius, 1993 - 1998 Toyota Supra, 1994 - 1998 Toyota T100, 1995 - 2004 Toyota Tacoma, 1995 - 2015 Toyota Tacoma, 2006 - 2018 Toyota Yaris
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2017 Toyota Yaris
Item LocatedUnited States
Quantity1
ConditionNew
item #1013DWS9
Note
【Note-1】 Start to Open Temperature: 82℃.
【Note-2】 2011-2015 Mitsubishi Lancer L4 2.0L Turbocharged, NOT fits for L4 2.0L Naturally Aspirated.
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Vemo V20-99-1281 Engine Coolant Thermostat
VemoPart # V20-99-1281
Vemo V20-99-1281 Engine Coolant Thermostat
57 Reviews
$20.99
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3-year warranty
90 days free return
Fits 1995-2000 Lexus SC300, 1995-2005 Lexus GS300, 2001-2005 Lexus IS300, 1995-1997 Toyota Previa, 1995-1998 Toyota Supra, 1995-1998 Toyota T100, 1995-2004 Toyota Tacoma, 1995-2015 Toyota Tacoma, 1996-2000 Toyota 4Runner, 2010-2010 Toyota 4Runner, 2016-2016 Toyota 4Runner, 2016-2016 Toyota Yaris, 2016-2016 Toyota Yaris, 2017-2017 Toyota Yaris, 2017-2017 Toyota Yaris, 2017-2017 Toyota Yaris
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2017 Toyota Yaris
Item LocatedUnited States
Quantity1
Part interchange
V20-99-1281, 78222, 78222S, 5324382, 29682, 29882, TX18982D, 11537791072, 
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item #1001QNY1
Note
With seal
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What is an engine thermostat?

 While all engines can become too hot, if your thermostat isn't working correctly, your engine's well-being is at serious risk. The engine thermostat, often simply referred to as a thermostat, regulates the engine's operating temperature within an optimal range (typically around 195 to 220 degrees Fahrenheit).

How does a car thermostat work?

As a temperature-sensitive valve within the cooling system, a car thermostat responds to changes in coolant temperature. Understanding how it works by the following breakdown steps:

  • Closed position (cold start)

Initially closed to help the engine warm up quickly.

  • Heating up

The engine generates heat during operation.

  • Opening the thermostat

A temperature-sensitive element (usually wax) causes the thermostat to open gradually.

  • Coolant flow

When open, coolant flows from the engine to the radiator.

  • Maintaining optimal temperature

Adjusts coolant flow to maintain the ideal engine temperature.

  • Temperature regulation

Continuously adjusts to prevent overheating and ensure efficient operation.

Signs of a bad thermostat

  1. Overheating: The engine becomes excessively hot due to a stuck-closed thermostat.
  2. Low or fluctuating temperature: A thermostat stuck open results in a cooler engine, affecting fuel efficiency and heating.
  3. Temperature warning light: Illuminates to indicate engine overheating due to a faulty thermostat.
  4. Poor fuel efficiency: Stuck-open thermostat reduces fuel efficiency as the engine operates less efficiently at lower temperatures.
  5. Inadequate cabin heating: Insufficient cabin heating in cold weather with a thermostat that's stuck open.
  6. Coolant leaks: Gasket or sealing issues can lead to coolant leaks.
  7. Rapid temperature fluctuations: The gauge shows rapid swings between hot and cold.
  8. Engine running hot at idle: Higher engine temperature during idle or in traffic due to restricted coolant flow.
  9. Slow or inconsistent warm-up: Longer-than-normal warm-up times, even in moderate weather.
  10. Inconsistent heater operation: This affects the performance of the vehicle's heater, causing inconsistent or inadequate heating in cold weather.

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Jul 29, 2026