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Mitsubishi Thermostat

28 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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Beck/Arnley 143-0713 Engine Coolant ThermostatBeck/Arnley 143-0713 Engine Coolant Thermostat
Beck/ArnleyPart # 143-0713
Beck/Arnley 143-0713 Engine Coolant Thermostat
52 Reviews
$34.99
Low stock: Only 1 left
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2009-2009 Mitsubishi Galant, 2008-2011 Mitsubishi Outlander, 2008-2008 Mitsubishi Galant, 2007-2007 Mitsubishi Galant, 2007-2007 Mitsubishi Outlander, 2006-2011 Mitsubishi Eclipse, 2003-2006 Mitsubishi Montero, 2003-2005 Mitsubishi Eclipse, 2003-2005 Mitsubishi Eclipse, 2000-2000 Dodge Avenger, 1997-1998 Mitsubishi Montero Sport, 1997-1997 Mitsubishi Diamante, 1995-1999 Chrysler Cirrus, 1995-1999 Chrysler Sebring, 1995-1999 Dodge Avenger, 1995-1997 Mitsubishi Montero, 1994-1994 Mitsubishi Montero, 1992-1995 Mitsubishi Diamante, 1991-1991 Mitsubishi 3000GT
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Mitsubishi
Item LocatedUnited States
Quantity1
Part interchange
143-0713
item #1000XH7N
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Beck/Arnley 143-0799 Engine Coolant Thermostat
Beck/ArnleyPart # 143-0799
Beck/Arnley 143-0799 Engine Coolant Thermostat
52 Reviews
$24.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2003-2003 Mitsubishi Outlander, 2000-2005 Mitsubishi Eclipse, 1999-2003 Mitsubishi Galant
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Mitsubishi
Item LocatedUnited States
QuantityOne Set
Part interchange
143-0799
item #1000XH5P
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Beck/Arnley 143-0779 Engine Coolant Thermostat
Beck/ArnleyPart # 143-0779
Beck/Arnley 143-0779 Engine Coolant Thermostat
52 Reviews
$30.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2007-2007 Mitsubishi Lancer, 2006-2006 Mitsubishi Lancer, 2003-2006 Mitsubishi Lancer, 2003-2006 Mitsubishi Lancer, 2003-2004 Mitsubishi Lancer, 2002-2002 Mitsubishi Lancer, 1997-2002 Mitsubishi Mirage, 1997-1999 Mitsubishi Montero Sport, 1994-1994 Mitsubishi Expo LRV, 1993-1996 Mitsubishi Mirage, 1993-1994 Dodge Colt, 1993-1993 Mitsubishi Expo LRV, 1992-1992 Mitsubishi Expo LRV
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Mitsubishi
Item LocatedUnited States
Quantity1
Part interchange
143-0779
item #1000XLRY
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Engine Coolant Air Bleeder for Chrysler Dodge Mitsubishi Eclipse Galant V6 2.7L
A-Premium®Part # APTHA0010
Engine Coolant Air Bleeder for Chrysler Dodge Mitsubishi Eclipse Galant V6 2.7L
4.694 Reviews
$25.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits 2010 - 2010 Mitsubishi Endeavor, 2006 - 2010 Mitsubishi Eclipse, 2004 - 2009 Mitsubishi Galant, 2004 - 2008 Mitsubishi Endeavor, 2001 - 2006 Chrysler Sebring, 2001 - 2006 Chrysler Sebring, 2001 - 2006 Dodge Stratus, 2000 - 2005 Mitsubishi Eclipse, 1999 - 2003 Mitsubishi Galant
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Mitsubishi
Item LocatedUnited States
Quantity1
ColorBlack
ConditionNew
item #1003CX7P
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Engine Coolant Thermostat - Mahle TX 352 88
MahlePart # TX 352 88
Engine Coolant Thermostat - Mahle TX 352 88
51 Reviews
$23.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2004-2005 Chrysler Sebring, 2004-2005 Chrysler Sebring, 2004-2005 Chrysler Sebring, 2004-2005 Dodge Stratus, 2003-2005 Dodge Stratus, 2003-2003 Mitsubishi Outlander, 2001-2004 Chrysler Sebring, 2001-2004 Chrysler Sebring, 2001-2003 Chrysler Sebring, 2001-2003 Dodge Stratus, 2001-2003 Dodge Stratus, 2000-2005 Mitsubishi Eclipse, 1999-2003 Mitsubishi Galant
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Mitsubishi
Item LocatedUnited States
Quantity1
Part interchange
TX 352 88, 33921, 143-0799, 14389, 422-190, MD328070, TX 352 88
item #1000XNWC
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Engine Coolant Thermostat - Mahle TX 70 82
MahlePart # TX 70 82
Engine Coolant Thermostat - Mahle TX 70 82
51 Reviews
$25.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2010-2010 Mitsubishi Galant, 2007-2007 Mitsubishi Lancer, 2006-2010 Mitsubishi Eclipse, 2005-2009 Mitsubishi Galant, 2004-2006 Mitsubishi Lancer, 2004-2006 Mitsubishi Outlander, 2004-2004 Mitsubishi Galant, 2004-2004 Mitsubishi Galant, 2000-2002 Mitsubishi Mirage
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Mitsubishi
Item LocatedUnited States
Quantity1
Part interchange
TX 70 82, 4480.82D, 4637.82D, 33982, 48118, TX7082, 281-180, 90916-03075, 
...View more
item #1000XSKX
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Engine Coolant Thermostat - Lower - Mahle TX 147 82D
MahlePart # TX 147 82D
Engine Coolant Thermostat - Lower - Mahle TX 147 82D
51 Reviews
$28.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2015-2015 INFINITI Q70L, 2014-2015 INFINITI Q70, 2014-2015 INFINITI QX80, 2014-2014 INFINITI QX70, 2012-2015 Nissan NV2500, 2012-2015 Nissan NV3500, 2011-2013 INFINITI M56, 2009-2013 INFINITI FX50, 2008-2012 Nissan Pathfinder, 2008-2011 Mitsubishi Outlander, 2007-2009 Mitsubishi Galant, 2007-2007 Mitsubishi Outlander, 2006-2011 Mitsubishi Eclipse, 2006-2010 INFINITI M45, 2006-2006 INFINITI Q45, 2005-2015 Nissan Armada, 2005-2005 Chrysler Sebring, 2005-2005 Dodge Stratus, 2004-2015 Nissan TITAN, 2004-2013 INFINITI QX56
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Mitsubishi
Item LocatedUnited States
Quantity1
Installation PositionLower
Part interchange
TX 147 82D, 21200-AD200, 21200-AD201, 21200-1LA0A, 33878, 14128, TX14782D, 297-180, 
...View more
item #1000XPVK
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Engine Coolant Thermostat - Mahle TX 171 82
MahlePart # TX 171 82
Engine Coolant Thermostat - Mahle TX 171 82
51 Reviews
$25.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2011-2011 Mitsubishi Lancer, 2010-2010 Mitsubishi Lancer, 2009-2010 Mitsubishi Outlander, 2009-2009 Mitsubishi Lancer, 2009-2009 Mitsubishi Lancer, 2009-2009 Mitsubishi Lancer, 2009-2009 Mitsubishi Lancer, 2009-2009 Mitsubishi Lancer, 2009-2009 Mitsubishi Lancer, 2009-2009 Mitsubishi Lancer, 2009-2009 Mitsubishi Lancer, 2008-2008 Mitsubishi Lancer, 2008-2008 Mitsubishi Outlander, 2008-2008 Mitsubishi Outlander
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Mitsubishi
Item LocatedUnited States
Quantity1
Part interchange
TX 171 82, 33945, 14719, MN 187250, TX17182, 299-180
item #1000XQAQ
Show less
Page 2 of 2

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