24/7 Customer service
USD
To make aftermarket auto parts an afterthought.
Add your vehicle
Address
Login
Cart
Item
$0.00
Add your vehicle to ensure fitment/Choose a yearRequired Fields
Select a different vehicle
Make/Model
VIN
Save

Buick Regal Thermostat

6 items

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

  • All filters
  • Sort By
  • Year
  • Price
  • Brand
  • Material
  • Color
  • Warranty
Engine Coolant Thermostat Housing Assembly for Buick Regal 2014-2017 Chevy GMCEngine Coolant Thermostat Housing Assembly for Buick Regal 2014-2017 Chevy GMC
A-Premium®Part # APTHA0036
Engine Coolant Thermostat Housing Assembly for Buick Regal 2014-2017 Chevy GMC
4.692 Reviews
$40.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits 2019 - 2022 Chevrolet Blazer, 2018 - 2021 GMC Terrain, 2018 - 2020 Buick Regal Sportback, 2018 - 2020 Buick Regal TourX, 2018 - 2020 Chevrolet Equinox, 2018 - 2019 Chevrolet Traverse, 2017 - 2021 GMC Acadia, 2017 - 2020 Buick Envision, 2016 - 2022 Chevrolet Camaro, 2016 - 2020 Buick Envision, 2016 - 2018 Cadillac CT6, 2016 - 2016 Chevrolet Malibu Limited, 2015 - 2015 Chevrolet Malibu, 2014 - 2019 Cadillac CTS, 2014 - 2019 Chevrolet Impala, 2014 - 2017 Buick Regal, 2013 - 2022 Chevrolet Malibu, 2013 - 2019 Cadillac ATS
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Buick Regal
Item LocatedUnited States
Quantity1
Part interchange
902-2089, 12651603, 12679095, 25201447
ConditionNew
item #1004T5N0
Show less
Engine Coolant Thermostat Assembly for Chevy Equinox GMC Terrain 2.4L 2010-2017
A-Premium®Part # APTHA0005
Engine Coolant Thermostat Assembly for Chevy Equinox GMC Terrain 2.4L 2010-2017
4.692 Reviews
$45.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits 2014 - 2014 Chevrolet Impala, 2012 - 2017 Buick Verano, 2012 - 2015 Chevrolet Captiva Sport, 2012 - 2014 Chevrolet Orlando, 2011 - 2017 Buick Regal, 2010 - 2017 Chevrolet Equinox, 2010 - 2017 GMC Terrain, 2010 - 2016 Buick LaCrosse, 2010 - 2010 Buick Allure, 2008 - 2014 Chevrolet Malibu, 2008 - 2011 Chevrolet HHR, 2008 - 2011 Chevrolet HHR, 2008 - 2010 Chevrolet Cobalt, 2008 - 2010 Pontiac G5, 2008 - 2010 Pontiac G6, 2008 - 2010 Saturn Sky, 2008 - 2009 Pontiac Solstice, 2008 - 2009 Saturn Aura, 2008 - 2008 Chevrolet Cobalt, 2008 - 2008 Chevrolet Malibu
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Buick Regal
Item LocatedUnited States
Quantity1
ColorNatural
ConditionNew
item #1003CXVV
Show less
Engine Coolant Thermostat for Chevrolet C2500 GMC C3500HD Buick Century Pontiac
A-Premium®Part # APTHE082
Engine Coolant Thermostat for Chevrolet C2500 GMC C3500HD Buick Century Pontiac
4.692 Reviews
$20.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits 2011 - 2011 Workhorse Custom Chassis W24, 2010 - 2010 Blue Bird Vision School Bus, 2007 - 2010 Workhorse Custom Chassis W62, 2007 - 2009 Workhorse R26, 2007 - 2009 Workhorse W21, 2007 - 2009 Workhorse Custom Chassis W24, 2007 - 2008 Workhorse Custom Chassis R26, 2007 - 2007 Chevrolet Silverado 2500 HD Classic, 2007 - 2007 Chevrolet Silverado 3500 Classic, 2007 - 2007 GMC Sierra 2500 HD Classic, 2007 - 2007 GMC Sierra 3500 Classic, 2006 - 2010 Workhorse Custom Chassis W18, 2006 - 2009 Pontiac Torrent, 2006 - 2009 Workhorse W16, 2006 - 2009 Workhorse W18, 2006 - 2006 Workhorse Custom Chassis W72, 2005 - 2009 Chevrolet Equinox, 2005 - 2009 Workhorse W25, 2005 - 2006 Buick Terraza, 2005 - 2006 Chevrolet Uplander
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Buick Regal
Item LocatedUnited States
Quantity1
ConditionNew
item #1013DTY2
Note
【Note-1】 Start to Open Temperature: 91℃.
【Note-2】 This item comes with seal.
Show less
ÜRO Parts GM0720261 Engine Coolant Thermostat Housing Assembly, Water Pump
ÜRO PartsPart # GM0720261
ÜRO Parts GM0720261 Engine Coolant Thermostat Housing Assembly, Water Pump
52 Reviews
$45.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2019-2022 Chevrolet Blazer, 2018-2021 GMC Terrain, 2018-2020 Buick Regal Sportback, 2018-2020 Buick Regal TourX, 2018-2020 Chevrolet Equinox, 2018-2019 Chevrolet Traverse, 2017-2021 GMC Acadia, 2016-2022 Chevrolet Camaro, 2016-2020 Buick Envision, 2016-2018 Cadillac CT6, 2016-2016 Chevrolet Malibu Limited, 2014-2019 Cadillac CTS, 2014-2019 Chevrolet Impala, 2014-2017 Buick Regal, 2013-2022 Chevrolet Malibu, 2013-2019 Cadillac ATS
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Buick Regal
Item LocatedUnited States
Quantity1
MaterialAluminum
ColorSilver
item #1000ZSQ5
Show less
Vemo V40-99-1103 Engine Coolant Thermostat Housing
VemoPart # V40-99-1103
Vemo V40-99-1103 Engine Coolant Thermostat Housing
57 Reviews
$80.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2018-2018 Buick Envision, 2018-2018 Cadillac ATS, 2018-2018 Cadillac CT6, 2018-2018 Cadillac CTS, 2018-2018 Chevrolet Camaro, 2018-2018 Chevrolet Equinox, 2018-2018 Chevrolet Impala, 2018-2018 Chevrolet Malibu, 2018-2018 Chevrolet Traverse, 2018-2018 GMC Acadia, 2018-2018 GMC Terrain, 2017-2017 Cadillac CT6, 2017-2017 Chevrolet Malibu, 2017-2017 GMC Acadia, 2016-2017 Buick Envision, 2016-2017 Chevrolet Camaro, 2016-2017 Chevrolet Impala, 2016-2016 Cadillac CT6, 2016-2016 Chevrolet Malibu Limited, 2015-2017 Cadillac CTS
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Buick Regal
Item LocatedUnited States
Quantity1
Part interchange
V40-99-1103, 12651603, 1338392, 25201447
item #1001QQUE
Note
With seal
Show less
Engine Coolant Thermostat - Mahle TX 122 82
MahlePart # TX 122 82
Engine Coolant Thermostat - Mahle TX 122 82
51 Reviews
$27.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2014-2017 Buick Regal, 2014-2014 Chevrolet Impala, 2012-2017 Buick Verano, 2012-2015 Chevrolet Captiva Sport, 2011-2013 Buick Regal, 2011-2011 Saab 9-3, 2011-2011 Saab 9-5, 2010-2017 Chevrolet Equinox, 2010-2017 GMC Terrain, 2010-2016 Buick LaCrosse, 2008-2014 Chevrolet Malibu, 2007-2010 Chevrolet Cobalt, 2007-2010 Pontiac G5, 2007-2010 Saturn Sky, 2007-2010 Saturn Vue, 2007-2009 Saturn Aura, 2007-2007 Saturn Ion, 2006-2011 Chevrolet HHR, 2006-2010 Pontiac G6, 2006-2009 Pontiac Solstice
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Buick Regal
Item LocatedUnited States
Quantity1
Part interchange
TX 122 82, 34025, 48628, TX12282, 4461-180, 12622410, 90537453
item #1000XS0H
Show less

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

Why Does Coolant Boil After You Turn the Engine Off?

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