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Mazda 3 Thermostat

6 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 Dodge Grand Caravan Charger Mazda CX-5 Chevy 71℃Engine Coolant Thermostat for Dodge Grand Caravan Charger Mazda CX-5 Chevy 71℃
A-Premium®Part # APTHE024
Engine Coolant Thermostat for Dodge Grand Caravan Charger Mazda CX-5 Chevy 71℃
52 Reviews
CA$40.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits 2023 - 2023 Mazda CX-50, 2022 - 2023 Mazda CX-30, 2022 - 2022 Mazda CX-5, 2020 - 2021 Mazda CX-5, 2019 - 2020 Mazda 6, 2019 - 2019 Mazda CX-5, 2018 - 2018 Mazda 6, 2017 - 2018 Mazda CX-5, 2016 - 2020 Mazda CX-9, 2016 - 2020 Mazda MX-5 Miata, 2016 - 2018 Mazda CX-3, 1993 - 1993 Chrysler LeBaron, 1992 - 1993 Chrysler Daytona, 1992 - 1993 Dodge Daytona, 1992 - 1992 Chrysler New Yorker, 1991 - 1992 Chrysler Dynasty, 1991 - 1992 Chrysler Imperial, 1991 - 1992 Chrysler New Yorker, 1991 - 1992 Dodge Spirit, 1991 - 1992 Plymouth Voyager
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Mazda 3
Item LocatedUnited States
Quantity1
ConditionNew
item #1013DYWH
Note
Start to Open Temperature: 71℃.
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Engine Coolant Thermostat Housing Assembly for Ford Explorer Escape Fusion Focus
A-Premium®Part # APTHA0270
Engine Coolant Thermostat Housing Assembly for Ford Explorer Escape Fusion Focus
52 Reviews
CA$51.99
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2-year warranty
90 days free return
Fits 2015 - 2016 Ford Fusion, 2015 - 2016 Lincoln MKC, 2014 - 2018 Ford Special Service Police Sedan, 2013 - 2017 Ford Taurus, 2013 - 2016 Ford Escape, 2013 - 2016 Lincoln MKT, 2013 - 2016 Lincoln MKZ, 2013 - 2015 Ford Explorer, 2013 - 2014 Ford Fusion, 2013 - 2013 Mazda 3 Sport, 2012 - 2013 Mazda 3, 2012 - 2012 Mazda 3 Sport, 2011 - 2018 Ford Focus, 2007 - 2015 Mazda MX-5 Miata, 2007 - 2009 Mazda 3, 2006 - 2010 Mazda 5, 2006 - 2006 Mazda MX-5 Miata, 2004 - 2011 Mazda 3, 2004 - 2006 Mazda 3
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Mazda 3
Item LocatedUnited States
Quantity1
ConditionNew
item #1013DTUG
Note
Temperature:71℃, Alternate Temperature Option.
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A-Premium APTHE023 Engine Coolant Thermostat
A-Premium®Part # APTHE023
A-Premium APTHE023 Engine Coolant Thermostat
52 Reviews
CA$31.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits 2019 - 2019 Mazda CX-5, 2018 - 2018 Mazda 3, 2018 - 2018 Mazda 3, 2018 - 2018 Mazda 3 Sport, 2018 - 2018 Mazda 3 Sport, 2018 - 2018 Mazda 6, 2017 - 2017 Mazda 3, 2017 - 2017 Mazda 3, 2014 - 2017 Mazda 6, 2014 - 2016 Mazda 3, 2014 - 2016 Mazda 3 Sport, 2014 - 2016 Mazda 3 Sport, 2014 - 2016 Mazda CX-5, 2013 - 2016 Mazda CX-5, 2012 - 2016 Mazda 3, 2011 - 2014 Mazda 2, 2011 - 2011 Mazda 3 Sport, 2004 - 2004 Chevrolet Tracker, 2002 - 2003 Mazda Protege5, 2002 - 2002 Mazda Protege
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Mazda 3
Item LocatedUnited States
Quantity1
MaterialMetal and Rubber
ConditionNew
item #1005V5HT
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Engine Coolant Thermostat Housing Assembly for Ford Focus Lincoln Mazda Mercury
A-Premium®Part # APTHA0082
Engine Coolant Thermostat Housing Assembly for Ford Focus Lincoln Mazda Mercury
52 Reviews
CA$27.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits 2014 - 2022 Ford Transit Connect, 2012 - 2017 Mazda 5, 2011 - 2012 Lincoln MKZ, 2010 - 2020 Ford Fusion, 2010 - 2013 Mazda 3, 2010 - 2013 Mazda 3 Sport, 2010 - 2012 Mazda CX-7, 2010 - 2011 Mercury Milan, 2009 - 2019 Ford Escape, 2009 - 2013 Mazda 6, 2009 - 2011 Mazda Tribute, 2009 - 2011 Mercury Mariner, 2008 - 2008 Mazda Tribute, 2007 - 2013 Mazda 3, 2007 - 2012 Mazda CX-7, 2007 - 2011 Ford Ranger, 2006 - 2010 Ford Fusion, 2006 - 2009 Mercury Milan, 2006 - 2008 Mercury Mariner, 2006 - 2006 Mazda MX-5 Miata
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Mazda 3
Item LocatedCanada
ColorBlack
ConditionNew
item #1005DVVG
Note
Engine Coolant Thermostat Housing Assembly -- Cover, Includes Thermostat.
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A-Premium APTHE043 Engine Coolant Thermostat
A-Premium®Part # APTHE043
A-Premium APTHE043 Engine Coolant Thermostat
52 Reviews
CA$25.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits 2019 - 2019 Mazda CX-5, 2018 - 2018 Mazda 3, 2018 - 2018 Mazda 3, 2018 - 2018 Mazda 3 Sport, 2018 - 2018 Mazda 3 Sport, 2018 - 2018 Mazda 6, 2017 - 2017 Mazda 3, 2017 - 2017 Mazda 3, 2014 - 2017 Mazda 6, 2014 - 2016 Mazda 3, 2014 - 2016 Mazda 3, 2014 - 2016 Mazda 3 Sport, 2014 - 2016 Mazda 3 Sport, 2014 - 2016 Mazda CX-5, 2013 - 2016 Mazda CX-5, 2012 - 2013 Mazda 3, 2011 - 2014 Mazda 2, 2011 - 2011 Mazda 3 Sport, 2004 - 2004 Chevrolet Tracker, 2002 - 2003 Mazda Protege5
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Mazda 3
Item LocatedUnited States
Quantity1
MaterialMetal and Rubber
ConditionNew
item #1005V2S4
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Thermostat Housing Assembly for Ford Explorer 2013-2015 Focus Mazda 3 Lincoln
A-Premium®Part # APTHA0115
Thermostat Housing Assembly for Ford Explorer 2013-2015 Focus Mazda 3 Lincoln
52 Reviews
CA$30.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits 2015 - 2016 Lincoln MKC, 2014 - 2018 Ford Special Service Police Sedan, 2013 - 2018 Ford Focus, 2013 - 2017 Ford Taurus, 2013 - 2016 Ford Escape, 2013 - 2016 Ford Fusion, 2013 - 2016 Lincoln MKT, 2013 - 2016 Lincoln MKZ, 2013 - 2015 Ford Explorer, 2012 - 2013 Mazda 3, 2009 - 2011 Mazda 3 Sport, 2007 - 2015 Mazda MX-5 Miata, 2007 - 2009 Mazda 3, 2006 - 2010 Mazda 5, 2006 - 2006 Mazda MX-5 Miata, 2004 - 2011 Mazda 3, 2004 - 2006 Mazda 3
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Mazda 3
Item LocatedCanada
Quantity1
MaterialPlastic
ConditionNew
item #10021VGP
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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.

Related Blogs

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Learn why coolant boils or bubbles after you turn the engine off, how heat soak affects the cooling system, and how to diagnose leaks, trapped air, cap, thermostat, fan, water pump, or head gasket problems.

Jul 29, 2026