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Mercury Thermostat

42 items

Shop precise fit replacement Thermostat to maintain and improve your vehicle's performance. Find the right parts for your make and model, backed by excellent customer service at A-Premium.

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A-Premium APTHE003 Engine Coolant ThermostatA-Premium APTHE003 Engine Coolant Thermostat
A-Premium®Part # APTHE003
A-Premium APTHE003 Engine Coolant Thermostat
4.685 Reviews
$20.99
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2-year warranty
90 days free return
Fits 1980 - 1982 AMC Concord, 1981 - 1983 AMC Eagle, 1977 - 1977 AMC Gremlin, 1980 - 1982 AMC Spirit, 1979 - 1979 AMC Spirit, 2013 - 2021 Blue Bird Vision School Bus, 1981 - 1986 Chevrolet Chevette, 1982 - 1982 Datsun 720, 1978 - 1978 Dodge D100, 1979 - 1979 Dodge D100, 1978 - 1978 Dodge D150, 1979 - 1980 Dodge D150, 1978 - 1978 Dodge D200, 1980 - 1980 Dodge D200, 1983 - 1985 Dodge Power Ram 50, 1983 - 1985 Dodge Ram 50, 1978 - 1978 Dodge W150, 1979 - 1979 Dodge W150, 1978 - 1978 Dodge W200, 1979 - 1979 Dodge W200
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Vehicle: Mercury
Item LocatedUnited States
Quantity1
MaterialMetal and Rubber
ConditionNew
item #1005V2KW
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Engine Thermostat Housing Assembly for Ford Freestyle Mercury Montego 3.0L 05-07
A-Premium®Part # APTHA0015
Engine Thermostat Housing Assembly for Ford Freestyle Mercury Montego 3.0L 05-07
4.685 Reviews
$48.99
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2-year warranty
90 days free return
Fits 2005 - 2007 Ford Five Hundred, 2005 - 2007 Ford Freestyle, 2005 - 2007 Mercury Montego
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Vehicle: Mercury
Item LocatedUnited States
Quantity1
MaterialMetal
ColorBlack
item #1003D063
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Engine Coolant Thermostat for Jeep Cherokee 84-86 Chevy Camaro 82-88 Buick 92℃
A-Premium®Part # APTHE091
Engine Coolant Thermostat for Jeep Cherokee 84-86 Chevy Camaro 82-88 Buick 92℃
4.685 Reviews
$16.99
Low stock: Only 1 left
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2-year warranty
90 days free return
Fits 1989 - 1990 Chrysler TC Maserati, 1982 - 1987 GMC S15, 1987 - 1987 Buick Skyhawk, 1981 - 1981 Chevrolet Chevette, 1989 - 1989 Isuzu Trooper, 1983 - 1989 GMC S15 Jimmy, 1988 - 1991 Pontiac Optima, 1970 - 1974 Saab Sonett, 1982 - 1988 Chevrolet Camaro, 1984 - 1986 Jeep Wagoneer, 1981 - 1982 Ford Courier, 1976 - 1977 Mercury Capri, 1966 - 1972 Opel Kadett, 1983 - 1986 Cadillac Cimarron, 1984 - 1985 Pontiac J2000 Sunbird, 1984 - 1986 Jeep Cherokee, 1983 - 1984 GMC S15, 1983 - 1986 Oldsmobile Firenza, 1971 - 1974 Mercury Capri, 1982 - 1982 Chevrolet Cavalier
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Vehicle: Mercury
Item LocatedUnited States
Quantity1
ConditionNew
item #1018827P
Note
Start to Open Temperature: 92℃.
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Engine Coolant Thermostat for Ford Escape Fusion Mustang Taurus Mazda 6 Lincoln
A-Premium®Part # APTHE044
Engine Coolant Thermostat for Ford Escape Fusion Mustang Taurus Mazda 6 Lincoln
4.685 Reviews
$23.99
Low stock: Only 3 left
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2-year warranty
90 days free return
Fits 1995 - 1995 Ford Contour, 1995 - 1995 Ford Contour, 1998 - 2000 Ford Contour, 2001 - 2007 Ford Escape, 2006 - 2008 Ford Fusion, 2011 - 2012 Ford Fusion, 1996 - 1999 Ford Mustang, 2001 - 2001 Ford Mustang, 2001 - 2005 Ford Taurus, 2000 - 2008 Jaguar S-Type, 2012 - 2012 Jaguar XF, 1995 - 2002 Lincoln Continental, 2020 - 2020 Lincoln Continental, 2000 - 2005 Lincoln LS, 2006 - 2006 Lincoln Zephyr, 2003 - 2008 Mazda 6, 2000 - 2006 Mazda MPV, 2001 - 2006 Mazda Tribute, 2008 - 2011 Mazda Tribute, 1999 - 2002 Mercury Cougar
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Mercury
Item LocatedUnited States
Quantity1
ConditionNew
item #1013DWL4
Note
【Note-1】 Start to Open Temperature: 87℃.;
【Note-2】 1995 Ford Contour L4 2.0L & V6 2.5L only fit the GL Sport/ LX Sport model.
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ÜRO Parts MA0717551 Engine Coolant Thermostat Housing Assembly
ÜRO PartsPart # MA0717551
ÜRO Parts MA0717551 Engine Coolant Thermostat Housing Assembly
52 Reviews
$28.99
Low stock: Only 1 left
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3-year warranty
90 days free return
Fits 2003-2007 Ford Focus, 2005-2006 Ford Focus, 2005-2006 Ford Focus, 2005-2006 Ford Focus, 2005-2006 Ford Focus, 2005-2008 Ford Escape, 2006-2006 Ford Ranger, 2006-2009 Ford Fusion, 2007-2007 Ford Focus, 2007-2007 Ford Focus, 2007-2007 Ford Focus, 2007-2007 Ford Ranger, 2008-2008 Ford Ranger, 2008-2011 Ford Focus, 2009-2011 Ford Ranger, 2010-2017 Ford Escape, 2010-2017 Ford Fusion, 2014-2016 Ford Transit Connect, 2017-2018 Ford Transit Connect, 2018-2018 Ford Escape
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Vehicle: Mercury
Item LocatedUnited States
Quantity1
MaterialPA6
ColorBlack
item #1000ZS2X
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Vemo V15-99-2002-1 Engine Coolant Thermostat
VemoPart # V15-99-2002-1
Vemo V15-99-2002-1 Engine Coolant Thermostat
57 Reviews
$27.99
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3-year warranty
90 days free return
Fits 1997-1997 Audi A4, 1997-1999 Audi A4 Quattro, 1998-1999 Audi A4, 2000-2000 Audi A4 Quattro, 2000-2001 Audi A4, 2000-2002 Audi TT Quattro, 2000-2004 Audi TT, 2001-2001 Audi A4 Quattro, 2001-2001 Audi A4 Quattro, 2005-2006 Audi TT, 1995-1995 Ford Mustang, 1995-1996 Ford Bronco, 1995-1996 Ford E-150 Econoline, 1995-1996 Ford E-150 Econoline Club Wagon, 1995-1996 Ford E-250 Econoline, 1995-1996 Ford E-350 Econoline, 1995-1996 Ford E-350 Econoline, 1995-1996 Ford E-350 Econoline Club Wagon, 1995-1996 Ford E-350 Econoline Club Wagon, 1995-1996 Ford F-150
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Vehicle: Mercury
Item LocatedUnited States
Quantity1
Part interchange
V15-99-2002-1, 78268S, TX1487D, 5205287, 4154313, 20087, 03G121113, 050121113B, 
...View more
item #1001QS2R
Note
With seal
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ÜRO Parts FD0712941 Engine Coolant Thermostat / Water Inlet Assembly
ÜRO PartsPart # FD0712941
ÜRO Parts FD0712941 Engine Coolant Thermostat / Water Inlet Assembly
52 Reviews
$45.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1999-2000 Ford Contour, 2000-2000 Ford Escort, 2000-2002 Ford Escort, 2002-2003 Ford Focus, 2002-2003 Ford Focus, 2002-2004 Ford Focus, 2002-2004 Ford Focus, 2002-2004 Ford Focus, 2002-2004 Ford Focus, 2002-2004 Ford Focus, 2003-2003 Ford Escort, 2004-2004 Ford Focus, 1999-2000 Mercury Mystique, 1999-2002 Mercury Cougar
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Vehicle: Mercury
Item LocatedUnited States
Quantity1
ColorBlack
Part interchange
FD0712941, XS7Z8592-AB, XS7Z8592-AC, XS7Z8592-AD, 902-200, FD0712941
item #1000ZQEV
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ÜRO Parts FD0712940 Engine Coolant Thermostat / Water Inlet Assembly
ÜRO PartsPart # FD0712940
ÜRO Parts FD0712940 Engine Coolant Thermostat / Water Inlet Assembly
52 Reviews
$92.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1997-2000 Ford Explorer, 2001-2001 Ford Explorer, 2001-2001 Ford Explorer Sport, 2001-2001 Ford Explorer Sport Trac, 2001-2001 Ford Ranger, 1998-2001 Mercury Mountaineer
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Vehicle: Mercury
Item LocatedUnited States
Quantity1
ColorBlack
Part interchange
FD0712940, YU3Z-8A586-AA, 902-204, 85331T, CO34736, TH792, CH-2204, TA2204S, 
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item #1000ZR9D
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Beck/Arnley 143-0641 Engine Coolant Thermostat
Beck/ArnleyPart # 143-0641
Beck/Arnley 143-0641 Engine Coolant Thermostat
51 Reviews
$31.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1970-1971 Audi 100 Series, 1970-1972 Audi Super 90, 1972-1973 Audi 100 Series, 1972-1973 Audi 100 Series, 1972-1974 Audi 100 Series, 1973-1974 Audi Fox, 1975-1977 Audi 100 Series, 1975-1979 Audi Fox, 1980-1980 Audi 4000, 1981-1983 Audi 4000, 1982-1983 Audi 4000, 1984-1986 Audi 4000, 1987-1987 Audi 4000, 1988-1988 Audi 90, 1988-1990 Audi 80, 1971-1971 Fiat 128, 1972-1973 Fiat 128, 1973-1973 Fiat 128, 1973-1973 Fiat 128, 1974-1974 Fiat X-1/9
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Mercury
Item LocatedUnited States
QuantityOne Set
Part interchange
143-0641
item #1000XGWH
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Beck/Arnley 143-0674 Engine Coolant Thermostat
Beck/ArnleyPart # 143-0674
Beck/Arnley 143-0674 Engine Coolant Thermostat
51 Reviews
$26.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1986-1988 Ford Taurus, 1989-1992 Ford Taurus, 1989-1995 Ford Taurus, 1989-1996 Ford Taurus, 1990-1992 Ford Probe, 1991-2000 Ford Ranger, 1992-1994 Ford Tempo, 1995-1995 Ford Taurus, 1996-1996 Ford Taurus, 1988-1990 Lincoln Town Car, 1988-1992 Lincoln Mark VII, 1994-2007 Mazda B3000, 1978-1978 Mercury Marquis, 1979-1980 Mercury Marquis, 1981-1981 Mercury Marquis, 1981-1982 Mercury Marquis, 1983-1986 Mercury Grand Marquis, 1986-1986 Mercury Sable, 1987-1987 Mercury Sable, 1987-1989 Mercury Grand Marquis
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Mercury
Item LocatedUnited States
QuantityOne Set
Part interchange
143-0674
item #1000XKWW
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Beck/Arnley 143-0688 Engine Coolant Thermostat
Beck/ArnleyPart # 143-0688
Beck/Arnley 143-0688 Engine Coolant Thermostat
51 Reviews
$27.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1998-1998 Chevrolet Tracker, 1999-1999 Chevrolet Tracker, 1999-1999 Chevrolet Tracker, 1999-1999 Chevrolet Tracker, 1982-1985 Chrysler LeBaron, 1983-1984 Chrysler E Class, 1983-1984 Chrysler Executive Sedan, 1983-1985 Chrysler New Yorker, 1985-1985 Chrysler Executive Limousine, 1987-1989 Chrysler Conquest, 1988-1989 Chrysler New Yorker, 1989-1990 Chrysler Dynasty, 1990-1995 Chrysler LeBaron, 1971-1978 Dodge Colt, 1978-1983 Dodge Challenger, 1979-1980 Dodge Colt, 1979-1981 Dodge D50, 1979-1984 Dodge Colt, 1981-1985 Dodge Aries, 1982-1983 Dodge 400
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Mercury
Item LocatedUnited States
Quantity1
Part interchange
143-0688
item #1000XGE3
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ÜRO Parts FD0714520 Engine Coolant Thermostat / Water Inlet Assembly
ÜRO PartsPart # FD0714520
ÜRO Parts FD0714520 Engine Coolant Thermostat / Water Inlet Assembly
52 Reviews
$43.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2002-2010 Ford Explorer, 2007-2010 Ford Explorer Sport Trac, 2002-2010 Mercury Mountaineer
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Vehicle: Mercury
Item LocatedUnited States
Quantity1
ColorBlack
Part interchange
FD0714520, 6L2Z8592-FA, 2L2Z8592A-A, 2L2Z8592B-A, GL2Z8592-A, 2L2Z8575A-A, 902-860, 85675, 
...View more
item #1000ZS85
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Beck/Arnley 143-0689 Engine Coolant Thermostat
Beck/ArnleyPart # 143-0689
Beck/Arnley 143-0689 Engine Coolant Thermostat
51 Reviews
$23.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1998-1998 Chevrolet Tracker, 1999-1999 Chevrolet Tracker, 1999-1999 Chevrolet Tracker, 1999-1999 Chevrolet Tracker, 1982-1985 Chrysler LeBaron, 1983-1984 Chrysler E Class, 1983-1984 Chrysler Executive Sedan, 1983-1985 Chrysler New Yorker, 1985-1985 Chrysler Executive Limousine, 1987-1989 Chrysler Conquest, 1988-1989 Chrysler New Yorker, 1989-1990 Chrysler Dynasty, 1971-1978 Dodge Colt, 1978-1983 Dodge Challenger, 1979-1980 Dodge Colt, 1979-1981 Dodge D50, 1979-1984 Dodge Colt, 1981-1985 Dodge Aries, 1982-1983 Dodge 400, 1983-1983 Dodge Power Ram 50
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Mercury
Item LocatedUnited States
Quantity1
Part interchange
143-0689
item #1000XHG9
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Beck/Arnley 143-0733 Engine Coolant Thermostat
Beck/ArnleyPart # 143-0733
Beck/Arnley 143-0733 Engine Coolant Thermostat
51 Reviews
$22.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1989-1989 Ford Probe, 1990-1992 Ford Probe, 1991-1996 Ford Escort, 1994-1997 Kia Sephia, 1995-2000 Kia Sportage, 1985-1992 Mazda 626, 1986-1989 Mazda 323, 1987-1993 Mazda B2600, 1988-1992 Mazda MX-6, 1989-1994 Mazda MPV, 1990-1991 Mazda 323, 1990-1993 Mazda Miata, 1990-1997 Mazda Protege, 1992-1992 Mazda 323, 1992-1995 Mazda MX-3, 1993-1994 Mazda 323, 1991-1994 Mercury Capri, 1991-1996 Mercury Tracer
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Mercury
Item LocatedUnited States
QuantityOne Set
Part interchange
143-0733
item #1000XGNH
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Beck/Arnley 143-0640 Engine Coolant Thermostat
Beck/ArnleyPart # 143-0640
Beck/Arnley 143-0640 Engine Coolant Thermostat
51 Reviews
$22.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1970-1971 Audi 100 Series, 1970-1972 Audi Super 90, 1972-1973 Audi 100 Series, 1972-1973 Audi 100 Series, 1972-1974 Audi 100 Series, 1973-1974 Audi Fox, 1975-1977 Audi 100 Series, 1975-1979 Audi Fox, 1980-1980 Audi 4000, 1981-1983 Audi 4000, 1982-1983 Audi 4000, 1984-1986 Audi 4000, 1987-1987 Audi 4000, 1988-1988 Audi 90, 1988-1990 Audi 80, 1971-1971 Fiat 128, 1972-1973 Fiat 128, 1973-1973 Fiat 128, 1973-1973 Fiat 128, 1974-1974 Fiat X-1/9
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Mercury
Item LocatedUnited States
QuantityOne Set
Part interchange
143-0640
item #1000XGAH
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Beck/Arnley 143-0671 Engine Coolant Thermostat
Beck/ArnleyPart # 143-0671
Beck/Arnley 143-0671 Engine Coolant Thermostat
51 Reviews
$24.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1981-1983 Ford Escort, 1982-1987 Ford EXP, 1983-1997 Ford Ranger, 1984-1985 Ford Escort, 1985-1987 Ford Escort, 1986-1990 Ford Taurus, 1988-1988 Ford Ranger, 1988-1990 Ford Escort, 1991-1993 Ford Escort, 1994-1995 Ford Escort, 1994-1996 Ford Escort, 1994-1996 Ford Escort, 1996-1996 Ford Escort, 1998-2000 Ford Ranger, 1994-1997 Mazda B2300, 1998-2001 Mazda B2500, 1981-1983 Mercury Lynx, 1983-1983 Mercury LN7, 1984-1985 Mercury Lynx, 1985-1987 Mercury Lynx
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Vehicle: Mercury
Item LocatedUnited States
Quantity1
Part interchange
143-0671
item #1000XGGQ
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Beck/Arnley 143-0687 Engine Coolant Thermostat
Beck/ArnleyPart # 143-0687
Beck/Arnley 143-0687 Engine Coolant Thermostat
51 Reviews
$22.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1998-1998 Chevrolet Tracker, 1999-1999 Chevrolet Tracker, 1999-1999 Chevrolet Tracker, 1999-1999 Chevrolet Tracker, 1982-1985 Chrysler LeBaron, 1983-1984 Chrysler E Class, 1983-1984 Chrysler Executive Sedan, 1983-1985 Chrysler New Yorker, 1985-1985 Chrysler Executive Limousine, 1987-1989 Chrysler Conquest, 1988-1989 Chrysler New Yorker, 1989-1990 Chrysler Dynasty, 1971-1978 Dodge Colt, 1978-1983 Dodge Challenger, 1979-1980 Dodge Colt, 1979-1981 Dodge D50, 1979-1983 Dodge Colt, 1981-1985 Dodge Aries, 1982-1983 Dodge 400, 1983-1983 Dodge Power Ram 50
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Mercury
Item LocatedUnited States
QuantityOne Set
Part interchange
143-0687
item #1000XKVK
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Beck/Arnley 143-0682 Engine Coolant Thermostat
Beck/ArnleyPart # 143-0682
Beck/Arnley 143-0682 Engine Coolant Thermostat
51 Reviews
$30.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1990-1992 INFINITI M30, 1993-1997 INFINITI J30, 1993-1997 Mercury Villager, 1984-1996 Nissan 300ZX, 1985-1994 Nissan Maxima, 1986-1994 Nissan D21, 1987-1988 Nissan 200SX, 1987-1988 Nissan Pathfinder, 1989-1995 Nissan Pathfinder, 1993-2000 Nissan Quest, 1995-1995 Nissan Pickup, 1996-1999 Nissan Pathfinder
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Vehicle: Mercury
Item LocatedUnited States
Quantity1
Part interchange
143-0682
item #1000XER2
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Beck/Arnley 143-0734 Engine Coolant Thermostat
Beck/ArnleyPart # 143-0734
Beck/Arnley 143-0734 Engine Coolant Thermostat
51 Reviews
$22.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1989-1989 Ford Probe, 1990-1992 Ford Probe, 1991-1996 Ford Escort, 1994-1997 Kia Sephia, 1995-1995 Kia Sportage, 1996-2000 Kia Sportage, 1998-2001 Kia Sephia, 1985-1992 Mazda 626, 1986-1989 Mazda 323, 1987-1993 Mazda B2600, 1988-1992 Mazda MX-6, 1989-1994 Mazda MPV, 1990-1991 Mazda 323, 1990-1993 Mazda Miata, 1990-1997 Mazda Protege, 1992-1992 Mazda 323, 1992-1995 Mazda MX-3, 1993-1994 Mazda 323, 1999-1999 Mazda Protege, 1999-2000 Mazda Miata
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Vehicle: Mercury
Item LocatedUnited States
Quantity1
Part interchange
143-0734
item #1000XE8K
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Beck/Arnley 143-0721 Engine Coolant Thermostat
Beck/ArnleyPart # 143-0721
Beck/Arnley 143-0721 Engine Coolant Thermostat
51 Reviews
$30.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1990-1992 INFINITI M30, 1993-1997 INFINITI J30, 1997-2000 INFINITI QX4, 1997-2001 INFINITI Q45, 1993-1999 Mercury Villager, 1984-1996 Nissan 300ZX, 1985-1994 Nissan Maxima, 1986-1994 Nissan D21, 1987-1988 Nissan 200SX, 1987-1988 Nissan Pathfinder, 1989-1995 Nissan Pathfinder, 1993-2002 Nissan Quest, 1995-1995 Nissan Pickup, 1996-2000 Nissan Pathfinder, 1999-2004 Nissan Frontier, 2000-2004 Nissan Xterra
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Vehicle: Mercury
Item LocatedUnited States
Quantity1
Part interchange
143-0721
item #1000XETQ
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Page 2 of 3

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