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

Mitsubishi Montero Thermostat

9 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
  • Placement on Vehicle
  • Brand
  • Material
  • Warranty
A-Premium APTHE081 Engine Coolant ThermostatA-Premium APTHE081 Engine Coolant Thermostat
A-Premium®Part # APTHE081
A-Premium APTHE081 Engine Coolant Thermostat
4.692 Reviews
$20.99
Low stock: Only 1 left
Edit ZIP code
2-year warranty
90 days free return
Fits 2017 - 2017 Mitsubishi Mirage, 1999 - 2001 Suzuki Esteem, 1999 - 2001 Suzuki Vitara, 1997 - 1999 Mitsubishi 3000GT, 1996 - 1998 Suzuki Sidekick, 1995 - 1996 Mitsubishi Mighty Max, 1994 - 1994 Suzuki Samurai, 1992 - 2000 Plymouth Grand Voyager, 1992 - 1996 Mitsubishi Diamante, 1992 - 1994 Plymouth Sundance, 1992 - 1992 Mitsubishi Expo, 1992 - 1992 Plymouth Colt, 1991 - 1996 Mercury Tracer, 1991 - 1994 Mercury Capri, 1991 - 1992 Mitsubishi Mirage, 1990 - 1994 Mitsubishi Eclipse, 1990 - 1994 Mitsubishi Mighty Max, 1990 - 1994 Plymouth Laser, 1990 - 1993 Mitsubishi Mighty Max, 1989 - 1995 Plymouth Acclaim
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Mitsubishi Montero
Item LocatedUnited States
Quantity1
MaterialMetal and Rubber
ConditionNew
item #1005V56V
Show less
A-Premium APTHE001 Engine Coolant Thermostat
A-Premium®Part # APTHE001
A-Premium APTHE001 Engine Coolant Thermostat
4.692 Reviews
$23.99
Edit ZIP code
2-year warranty
90 days free return
Fits 2020 - 2020 Nissan Armada, 2019 - 2020 Mitsubishi Outlander, 2016 - 2016 Nissan Frontier, 2016 - 2016 Nissan NV1500, 2016 - 2016 Nissan NV2500, 2016 - 2016 Nissan NV3500, 2015 - 2015 INFINITI Q70L, 2014 - 2016 INFINITI QX80, 2014 - 2015 INFINITI Q70, 2014 - 2014 INFINITI QX70, 2013 - 2015 Acura RDX, 2012 - 2017 Nissan NV2500, 2012 - 2017 Nissan NV3500, 2012 - 2012 Honda Crosstour, 2011 - 2013 INFINITI M56, 2010 - 2014 Acura TSX, 2010 - 2013 Acura ZDX, 2010 - 2011 Honda Accord Crosstour, 2010 - 2011 Mitsubishi Endeavor, 2009 - 2014 Acura TL
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Mitsubishi Montero
Item LocatedUnited States
Quantity1
MaterialMetal and Rubber
ConditionNew
item #1005V2X1
Show less
Beck/Arnley 143-0688 Engine Coolant Thermostat
Beck/ArnleyPart # 143-0688
Beck/Arnley 143-0688 Engine Coolant Thermostat
52 Reviews
$27.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2001-2005 Kia Rio, 1999-1999 Chevrolet Tracker, 1999-1999 Chevrolet Tracker, 1999-1999 Chevrolet Tracker, 1998-1998 Chevrolet Tracker, 1997-1998 Mitsubishi 3000GT, 1996-1998 Suzuki X-90, 1996-1996 Mitsubishi Diamante, 1994-1997 Ford Aspire, 1994-1997 Mazda Miata, 1994-1994 Mitsubishi Montero, 1993-1996 Mitsubishi Mirage, 1992-1996 Eagle Summit, 1992-1995 Hyundai Elantra, 1992-1995 Mitsubishi Diamante, 1992-1993 Dodge Grand Caravan, 1992-1992 Eagle Summit, 1992-1992 Mitsubishi Expo, 1991-1994 Mercury Capri, 1991-1992 Hyundai Scoupe
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Mitsubishi Montero
Item LocatedUnited States
Quantity1
Part interchange
143-0688
item #1000XGE3
Show less
Beck/Arnley 143-0689 Engine Coolant Thermostat
Beck/ArnleyPart # 143-0689
Beck/Arnley 143-0689 Engine Coolant Thermostat
52 Reviews
$23.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2007-2009 Suzuki SX4, 2003-2003 Suzuki Vitara, 2002-2007 Suzuki Aerio, 2002-2002 Suzuki Esteem, 1999-2002 Suzuki Vitara, 1999-2001 Suzuki Esteem, 1999-1999 Chevrolet Tracker, 1999-1999 Chevrolet Tracker, 1999-1999 Chevrolet Tracker, 1999-1999 Mitsubishi 3000GT, 1998-1998 Chevrolet Tracker, 1997-1998 Mitsubishi 3000GT, 1996-1998 Suzuki X-90, 1996-1996 Mitsubishi Diamante, 1994-1997 Ford Aspire, 1994-1997 Mazda Miata, 1994-1994 Mitsubishi Montero, 1993-1996 Mitsubishi Mirage, 1992-1996 Eagle Summit, 1992-1995 Hyundai Elantra
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Mitsubishi Montero
Item LocatedUnited States
Quantity1
Part interchange
143-0689
item #1000XHG9
Show less
Beck/Arnley 143-0687 Engine Coolant Thermostat
Beck/ArnleyPart # 143-0687
Beck/Arnley 143-0687 Engine Coolant Thermostat
52 Reviews
$22.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1999-1999 Chevrolet Tracker, 1999-1999 Chevrolet Tracker, 1999-1999 Chevrolet Tracker, 1998-1998 Chevrolet Tracker, 1997-1998 Mitsubishi 3000GT, 1996-1998 Suzuki X-90, 1996-1996 Mitsubishi Diamante, 1994-1997 Ford Aspire, 1994-1997 Mazda Miata, 1994-1994 Mitsubishi Montero, 1993-1996 Mitsubishi Mirage, 1992-1996 Eagle Summit, 1992-1995 Hyundai Elantra, 1992-1995 Mitsubishi Diamante, 1992-1994 Dodge Colt, 1992-1993 Dodge Grand Caravan, 1992-1992 Eagle Summit, 1992-1992 Mitsubishi Expo, 1991-1994 Mercury Capri, 1991-1992 Hyundai Scoupe
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Mitsubishi Montero
Item LocatedUnited States
QuantityOne Set
Part interchange
143-0687
item #1000XKVK
Show less
Beck/Arnley 143-0804 Engine Coolant Thermostat
Beck/ArnleyPart # 143-0804
Beck/Arnley 143-0804 Engine Coolant Thermostat
52 Reviews
$32.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2010-2011 Mitsubishi Endeavor, 2009-2009 Mitsubishi Galant, 2007-2007 Mitsubishi Galant, 2004-2008 Mitsubishi Endeavor, 2004-2006 Mitsubishi Galant, 2003-2005 Mitsubishi Eclipse, 2003-2005 Mitsubishi Eclipse, 2003-2004 Mitsubishi Montero Sport, 2000-2002 Mitsubishi Eclipse, 2000-2001 Mitsubishi Montero Sport, 1999-2003 Mitsubishi Galant, 1999-2003 Mitsubishi Montero Sport, 1998-2004 Mitsubishi Diamante, 1998-2003 Mitsubishi Montero Sport, 1998-2002 Mitsubishi Montero, 1997-1997 Mitsubishi Diamante
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Mitsubishi Montero
Item LocatedUnited States
Quantity1
Part interchange
143-0804
item #1000XESK
Show less
Beck/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
Edit ZIP code
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 Montero
Item LocatedUnited States
Quantity1
Part interchange
143-0713
item #1000XH7N
Show less
Beck/Arnley 143-0779 Engine Coolant Thermostat
Beck/ArnleyPart # 143-0779
Beck/Arnley 143-0779 Engine Coolant Thermostat
52 Reviews
$30.99
Edit ZIP code
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 Montero
Item LocatedUnited States
Quantity1
Part interchange
143-0779
item #1000XLRY
Show less
Engine Coolant Thermostat - Lower - Mahle TX 147 82D
MahlePart # TX 147 82D
Engine Coolant Thermostat - Lower - Mahle TX 147 82D
51 Reviews
$28.99
Edit ZIP code
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 Montero
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
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