Thermostat

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The thermostat in your vehicle plays a vital role in your cooling system. Your vehicle's engine must maintain proper temperature. The thermostat is a valve that regulates its temperature and is located between the radiator and engine. As the coolant temp rises, the thermostat begins to open, allowing hot coolant in the engine to flow into the radiator and then cooler coolant from the radiator to the engine. If your thermostat is not functioning properly, or is broken, you may notice some signs such as an overheating engine, temperature changes, and coolant leaks. Over time, thermostats can sometimes stick, which would not allow coolant to flow into your radiator to get cooled. Thermostats can also develop leaks around the seal. A leaking thermostat would need to be replaced since it cannot seal properly and hold the antifreeze inside where it belongs. If you are leaking antifreeze, that vital fluid cannot cool down your engine like it is designed to do. An overheating engine will cause many problems if you let it go and don't get the problem fixed. Here at Parts Discounters, we have genuine OEM thermostat replacements for your specific make and model vehicle. Check out all of our thermostat options below.

Thermostat
Part Number: 25500-22250
Other Names: Thermostat Assembly More Names
Replaces: 25500-22050
Description: Sohc. Scoupe. Accent. More Info
Fits:
  • Hyundai:
    • Accent,
    • Scoupe
MSRP $28.23
$20.65
MSRP $28.23
$20.65
Thermostat
Part Number: 25500-35540
Other Names: Thermostat Assembly More Names
Description: 2.7L. More Info
Fits:
  • Hyundai:
    • Santa Fe
MSRP $42.06
$30.77
MSRP $42.06
$30.77
Thermostat
Part Number: 25500-3L200
Other Names: Thermostat Assembly More Names
Description: G70. G80. G90. From 12/28/16. 3.3L, from 12/28/2016. More Info
Notes: 17. More Notes
Fits:
  • Genesis:
    • G70,
    • G80,
    • G90
MSRP $204.68
$149.74
MSRP $204.68
$149.74
Thermostat
Part Number: 000-501-09-65
Other Names: Oil Cooler Thermostat More Names
Description: 4.6L - v8. More Info
Fits:
  • Mercedes-Benz:
    • S 550
MSRP $155.00
$124.00
MSRP $155.00
$124.00
Thermostat
Part Number: 272-200-06-15
Other Names: Coolant Thermostat More Names
Replaces: 273-200-04-15
Description: E550. Cls550. 5.5L, 2007-09. 5.5L, 2007-11. More Info
Fits:
  • Mercedes-Benz:
    • CLK 550,
    • CLS 550,
    • E 550
MSRP $195.00
$156.00
MSRP $195.00
$156.00
Thermostat
Part Number: 278-200-01-15
Other Names: Coolant Thermostat More Names
Description: 5.5L. Slk55 amg. More Info
Fits:
  • Mercedes-Benz:
    • SLK 55 AMG®
MSRP $270.00
$216.00
MSRP $270.00
$216.00
Thermostat
Part Number: 25500-03850
Other Names: Thermostat Assembly More Names
Description: 1.4L. Elantra. More Info
Fits:
  • Hyundai:
    • Elantra
MSRP $205.63
$150.44
MSRP $205.63
$150.44
Thermostat
Part Number: 25500-22600
Other Names: Thermostat Assembly More Names
Description: 1.5L. More Info
Fits:
  • Hyundai:
    • Accent
MSRP $28.94
$21.17
MSRP $28.94
$21.17
Thermostat
Part Number: 25500-23010
Other Names: Thermostat Assembly More Names
Replaces: 25500-23001
Fits:
  • Hyundai:
    • Accent,
    • Elantra,
    • Santa Fe,
    • Santa Fe Sport,
    • Sonata,
    • Tiburon,
    • Tucson
  • 2 more
MSRP $31.08
$22.74
MSRP $31.08
$22.74
Thermostat
Part Number: 25500-2B000
Other Names: Thermostat Assembly More Names
Replaces: 25500-2B400
Description: Accent. Veloster. Without turbo. Tucson. Kona. 2018-19. Sonata. 1.6l. Elantra GT. More Info
Fits:
  • Hyundai:
    • Accent,
    • Elantra,
    • Elantra GT,
    • Kona,
    • Sonata,
    • Tucson,
    • Veloster
  • 2 more
MSRP $25.32
$18.53
MSRP $25.32
$18.53
Thermostat
Part Number: 25500-2E270
Other Names: Thermostat Assembly More Names
Description: Sonata. More Info
Fits:
  • Hyundai:
    • Sonata
MSRP $25.32
$18.53
MSRP $25.32
$18.53
Thermostat
Part Number: 25500-2GTA0
Other Names: Thermostat Assembly More Names
Description: Sonata. 2.0l. Santa Fe. 2.0l. Veloster N. 2.0L turbo, main. More Info
Notes: 11. More Notes
Fits:
  • Hyundai:
    • Santa Fe,
    • Santa Fe Sport,
    • Sonata,
    • Veloster N
MSRP $29.37
$21.49
MSRP $29.37
$21.49
Thermostat
Part Number: 25500-33060
Other Names: Thermostat Assembly More Names
Replaces: 25500-11010, 25500-21100, 25500-21210, 25500-21220, 25500-33020, 25500-33040, 25500-33050
Description: Sonata. Excel. Elantra. 1.8l. Scoupe. To 6/01/92. From 6/01/92. Elantra. 1.6l. More Info
Fits:
  • Hyundai:
    • Elantra,
    • Excel,
    • Scoupe,
    • Sonata
MSRP $26.53
$19.41
MSRP $26.53
$19.41
Thermostat
Part Number: 25500-35531
Other Names: Thermostat Assembly More Names
Replaces: 25500-35530
Description: Santa Fe. 2.7l. To 10/1/00. Sonata. 2.5l. More Info
Fits:
  • Hyundai:
    • Santa Fe,
    • Sonata
MSRP $36.16
$26.46
MSRP $36.16
$26.46
Thermostat
Part Number: 25500-3C130
Other Names: Thermostat Assembly More Names
Description: Veracruz. Azera. 3.8L. Sonata. Santa Fe. 3.5l. Santa Fe. 3.3l. Genesis. Entourage. More Info
Notes: 19. More Notes
Fits:
  • Hyundai:
    • Azera,
    • Entourage,
    • Genesis,
    • Genesis Coupe,
    • Santa Fe,
    • Sonata,
    • Veracruz
  • 2 more
MSRP $42.06
$30.77
MSRP $42.06
$30.77
Thermostat
Part Number: 25500-3C150
Other Names: Thermostat Assembly More Names
Description: 3.3L. Azera. Santa Fe XL. Genesis sedan. G80. 3.8L, 2017. More Info
Notes: 1. More Notes
Fits:
  • Genesis:
    • G80
  • Hyundai:
    • Azera,
    • Genesis,
    • Santa Fe,
    • Santa Fe XL
MSRP $42.06
$30.77
MSRP $42.06
$30.77
Thermostat
Part Number: 25500-2E272
Other Names: Thermostat Assembly More Names
Description: 2.0L. Sonata. More Info
Fits:
  • Hyundai:
    • Sonata
MSRP $25.32
$18.53
MSRP $25.32
$18.53
Thermostat
Part Number: 25500-37200
Other Names: Thermostat Assembly More Names
Description: Tiburon. 2.7l. Santa Fe. 2.7l. From 10/1/00. XG300, XG350. Sonata. 2.7l. Tucson. Santa Fe. 3.5l. More Info
Fits:
  • Hyundai:
    • Santa Fe,
    • Sonata,
    • Tiburon,
    • Tucson,
    • XG300,
    • XG350
  • 1 more
MSRP $35.74
$26.15
MSRP $35.74
$26.15
Thermostat
Part Number: 25500-03HB0
Other Names: Thermostat Assembly More Names
Description: Hybrid, plug-in, gas engine. Ioniq hybrid. More Info
Fits:
  • Hyundai:
    • Ioniq
MSRP $25.32
$18.53
MSRP $25.32
$18.53
Thermostat
Part Number: 25500-25001
Other Names: Thermostat Assembly More Names
Description: 2.0L. Genesis Coupe. 2.4L, 2006-08. 2.5L. Sonata. More Info
Fits:
  • Genesis:
    • G80
  • Hyundai:
    • Genesis Coupe,
    • Sonata
MSRP $35.74
$26.15
MSRP $35.74
$26.15
Thermostat
Part Number: 25500-26100
Other Names: Thermostat Assembly More Names
Description: Sonata Hybrid. 2.0L. More Info
Fits:
  • Hyundai:
    • Santa Fe Sport,
    • Sonata
MSRP $27.82
$20.36
MSRP $27.82
$20.36
Thermostat
Part Number: 25500-2GGA0
Other Names: Thermostat Assembly More Names
Description: Sonata. 2.4l. Santa Fe. 2.4l. Tucson. More Info
Fits:
  • Hyundai:
    • Santa Fe,
    • Santa Fe Sport,
    • Sonata,
    • Tucson
MSRP $41.26
$30.18
MSRP $41.26
$30.18
Thermostat
Part Number: 25500-38001
Other Names: Thermostat Assembly More Names
Description: Santa Fe. 2.4l. More Info
Fits:
  • Hyundai:
    • Santa Fe,
    • Sonata
MSRP $28.94
$21.17
MSRP $28.94
$21.17
Thermostat
Part Number: 25500-3C140
Other Names: Thermostat Assembly More Names
Description: 3.3L. Azera. More Info
Notes: 1. More Notes
Fits:
  • Hyundai:
    • Azera,
    • Santa Fe
MSRP $42.06
$30.77
MSRP $42.06
$30.77
Thermostat
Part Number: 166-501-02-65
Other Names: Oil Cooler Thermostat More Names
Description: Coupe, 3.0l biturbo. More Info
Fits:
  • Mercedes-Benz:
    • GLE 43 AMG®,
    • GLE 450 AMG®
MSRP $144.00
$115.20
MSRP $144.00
$115.20
Thermostat
Part Number: 642-200-21-15
Other Names: Coolant Thermostat More Names
Replaces: 642-200-04-15
Description: E320. Diesel. More Info
Fits:
  • Mercedes-Benz:
    • E 320
MSRP $214.00
$171.20
MSRP $214.00
$171.20
Thermostat Outlet
Part Number: 25500-2E085
Other Names: Thermostat, Thermostat Assembly More Names
Description: 2.0L. Elantra. Kona. Veloster. More Info
Fits:
  • Hyundai:
    • Elantra,
    • Kona,
    • Veloster
MSRP $125.77
$92.02
MSRP $125.77
$92.02
Thermostat Unit
Part Number: 25600-3L101
Other Names: Engine Coolant Thermostat Kit, Control Assembly-Coolant Temperature More Names
Description: 3.8L, 2018-20. Incl.Gaskets,Qty.2 Housings and Thermostat. More Info
Fits:
  • Genesis:
    • G80
MSRP $601.69
$429.01
MSRP $601.69
$429.01
Thermostat Housing
Part Number: 25600-3L252
Other Names: Thermostat Unit, Control Assembly-Coolant Temperature More Names
Replaces: 25600-3L251
Description: 3.3L, to 04/11/2017. More Info
Fits:
  • Genesis:
    • G80,
    • G90
MSRP $531.26
$378.79
MSRP $531.26
$378.79
Thermostat Housing
Part Number: 25600-3L253
Other Names: Thermostat Unit, Control Assembly-Coolant Temperature More Names
Description: 3.3L. More Info
Fits:
  • Genesis:
    • G80,
    • G90
MSRP $531.26
$378.79
MSRP $531.26
$378.79
Thermostat Housing
Part Number: 25611-3C660
Other Names: Housing Assembly-Thermostat More Names
Description: Genesis. More Info
Fits:
  • Hyundai:
    • Genesis
MSRP $173.65
$127.04
MSRP $173.65
$127.04
Thermostat Housing
Part Number: 25620-03800
Positions: Inner
Other Names: Inner Housing, Housing Assembly-Thermostat More Names
Description: 1.4L. Elantra. More Info
Fits:
  • Hyundai:
    • Elantra
MSRP $87.26
$63.84
MSRP $87.26
$63.84
Thermostat Housing
Part Number: 25620-23001
Positions: Lower
Other Names: Engine Coolant Thermostat Housing, Case-Thermostat More Names
Description: Lower. Tiburon. From 10/13/98 to 1/4/00. From 10/13/1998. To 01/04/2000. More Info
Fits:
  • Hyundai:
    • Elantra,
    • Tiburon
MSRP $82.10
$60.06
MSRP $82.10
$60.06
Thermostat Housing
Part Number: 25620-23040
Positions: Lower
Other Names: Engine Coolant Thermostat Housing, Case-Thermostat More Names
Description: Elantra. Sedan. More Info
Fits:
  • Hyundai:
    • Elantra
MSRP $82.10
$60.06
MSRP $82.10
$60.06
Thermostat Housing
Part Number: 25620-2C400
Other Names: Housing, Housing Assembly-Thermostat More Names
Description: 2.0L. Genesis Coupe. More Info
Fits:
  • Hyundai:
    • Genesis Coupe
MSRP $114.60
$83.84
MSRP $114.60
$83.84
Thermostat Housing
Part Number: 25620-2G400
Other Names: Case-Thermostat More Names
Description: Tucson. 2.0l. 2010-13, 2.0l. 2014-15, 2.0L. More Info
Fits:
  • Hyundai:
    • Tucson
MSRP $114.60
$83.84
MSRP $114.60
$83.84
Thermostat Housing
Part Number: 25620-2GGA0
Other Names: Case-Thermostat More Names
Description: Santa Fe. 2.4l. Tucson. More Info
Fits:
  • Hyundai:
    • Santa Fe Sport,
    • Sonata,
    • Tucson
MSRP $75.98
$55.59
MSRP $75.98
$55.59
Thermostat Housing
Part Number: 25620-33001
Positions: Lower
Other Names: Engine Coolant Thermostat Housing, Case-Thermostat More Names
Description: Elantra. Federal. Exc.Calif. More Info
Fits:
  • Hyundai:
    • Elantra,
    • Sonata
MSRP $42.84
$31.34
MSRP $42.84
$31.34
Thermostat Housing
Part Number: 25620-38020
Positions: Lower
Other Names: Engine Coolant Thermostat Housing, Housing Assembly-Thermostat More Names
Description: From 05/11/2001. Sonata. 2.4l. To 3/1/02. More Info
Fits:
  • Hyundai:
    • Sonata
MSRP $94.10
$68.84
MSRP $94.10
$68.84
Thermostat Housing
Part Number: 25620-38065
Other Names: Case-Thermostat More Names
Replaces: 25620-38060
Description: Santa Fe. 2.4l. More Info
Fits:
  • Hyundai:
    • Santa Fe
MSRP $82.58
$60.42
MSRP $82.58
$60.42
Thermostat Housing
Part Number: 25620-3C100
Other Names: Housing Assembly-Thermostat More Names
Description: Sonata. To 08/15/09. Veracruz. Azera. To 10/31/06. Entourage. Santa Fe. 3.3l. More Info
Fits:
  • Hyundai:
    • Azera,
    • Entourage,
    • Santa Fe,
    • Sonata,
    • Veracruz
MSRP $203.66
$149.00
MSRP $203.66
$149.00
Thermostat Housing
Part Number: 25620-3E200
Other Names: Housing Assembly-Thermostat More Names
Description: 2.7L. More Info
Fits:
  • Hyundai:
    • Santa Fe
MSRP $203.66
$149.00
MSRP $203.66
$149.00
Thermostat Housing
Part Number: 25620-3L251
Other Names: Housing Assembly-Thermostat More Names
Description: G90. To 12/28/16. More Info
Fits:
  • Genesis:
    • G90
MSRP $239.47
$175.19
MSRP $239.47
$175.19
Thermostat Housing
Part Number: 25620-3L252
Other Names: Housing Assembly-Thermostat More Names
Description: G80. G90. From 12/28/16 to 4/12/17. 3.3L, to 04/11/2017. More Info
Fits:
  • Genesis:
    • G80,
    • G90
MSRP $239.47
$175.19
MSRP $239.47
$175.19
Thermostat Housing
Part Number: 25621-3CAA0
Positions: Front
Other Names: Front Housing, Housing-Thermostat More Names
Description: 3.3L. Front. Santa Fe. 3.5l. More Info
Notes: 27. More Notes
Fits:
  • Hyundai:
    • Azera,
    • Santa Fe,
    • Santa Fe XL
MSRP $120.61
$88.24
MSRP $120.61
$88.24
Thermostat Housing
Part Number: 25622-3CAA0
Positions: Rear
Other Names: Rear Housing, Housing-Thermostat More Names
Description: 3.3L. Rear. Santa Fe. 3.5l. More Info
Notes: 27. More Notes
Fits:
  • Hyundai:
    • Azera,
    • Santa Fe,
    • Santa Fe XL
MSRP $89.19
$65.25
MSRP $89.19
$65.25
Thermostat Housing
Part Number: 25631-23001
Positions: Upper
Other Names: Thermostat Cover, Fitting-Coolant Inlet More Names
Description: Elantra. Upper. Tiburon. More Info
Fits:
  • Hyundai:
    • Elantra,
    • Tiburon
MSRP $17.81
$13.47
MSRP $17.81
$13.47
Thermostat Outlet
Part Number: 25631-23501
Positions: Upper
Other Names: Thermostat Cover, Thermostat Housing, Water Inlet, Fitting-Coolant Inlet More Names
Description: Upper. Elantra. Tucson. 2.0l. More Info
Fits:
  • Hyundai:
    • Elantra,
    • Tiburon,
    • Tucson
MSRP $29.03
$21.24
MSRP $29.03
$21.24
Thermostat Retainer
Part Number: 000993250264
Other Names: Thermostat Unit Spring, Gasket Clip, Thermostat Clip, Thermostat Retainer Spring, Catch Spring, Detent Spring More Names
Replaces: 000-993-25-02
Description: 2.0L, c350e. Glk/glc, 2.0l. Coupe, 2017-19. 2.0l, with hybrid. Sedan, 2.0L, c300 2015-18. Coupe/convertible, 2.0L, 2017-18. More Info
Notes: 11. More Notes
Fits:
  • Mercedes-Benz:
    • C 300,
    • C 350e,
    • E 300,
    • GLC 300,
    • GLC 350e,
    • Metris,
    • SLC 300,
    • SLK 300
  • 3 more
MSRP $1.40
$1.26
MSRP $1.40
$1.26
Thermostat Housing
Part Number: 111-200-13-03
Positions: Lower
Other Names: Engine Coolant Thermostat Housing, Thermostat Cover More Names
Description: 2.3L. 2.2L. Slk230. More Info
Fits:
  • Mercedes-Benz:
    • C 220,
    • C 230,
    • SLK 230
MSRP $124.00
$99.20
MSRP $124.00
$99.20

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