Thermostat

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.

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Thermostat
Part Number: 2L2Z-8575-AA
Other Names: Thermostat Assembly More Names
Description: Explorer, Mountaineer. Explorer Sport Trac. Mustang. Ranger. Sohc. From 7/24/00. 4.0L, 2001-11. Without sport, sport trac. More Info
Notes: Included With Housing Assembly. More Notes
Fits:
  • Ford:
    • Explorer,
    • Explorer Sport,
    • Explorer Sport Trac,
    • Mustang,
    • Ranger
  • Mercury:
    • Mountaineer
  • 1 more
$28.65
$18.91
$28.65
$18.91
Thermostat
Part Number: 5F9Z-8575-AA
Other Names: Thermostat Assembly More Names
Description: Five Hundred, Montego. Freestyle. More Info
Notes: Includes Thermostat Gasket. More Notes
Fits:
  • Ford:
    • Five Hundred,
    • Freestyle
  • Mercury:
    • Montego
$24.15
$15.94
$24.15
$15.94
Thermostat
Part Number: AG9Z-8575-B
Other Names: Thermostat Assembly More Names
Description: Explorer. Edge. 2.0L, to 9/04/12. More Info
Notes: Includes Thermostat Gasket. More Notes
Fits:
  • Ford:
    • Edge,
    • Explorer
$45.62
$30.11
$45.62
$30.11
Thermostat
Part Number: F5RZ-8575-B
Other Names: Thermostat Assembly More Names
Description: Sable, Taurus. 2.5l. 3.0L dohc. More Info
Fits:
  • Ford:
    • Contour,
    • Taurus
  • Mercury:
    • Mystique,
    • Sable
$25.85
$17.06
$25.85
$17.06
Thermostat
Part Number: FR3Z-8575-B
Other Names: Thermostat Assembly More Names
Description: EcoSport. 2.0L. More Info
Notes: Includes Housing And Gasket. More Notes
Fits:
  • Ford:
    • EcoSport
$42.93
$28.33
$42.93
$28.33
Thermostat
Part Number: HC3Z-8575-A
Other Names: Thermostat Assembly More Names
Description: 6.7L, auxiliary. F250, f350, f450, f550. More Info
Fits:
  • Ford:
    • F-250 Super Duty,
    • F-350 Super Duty
$51.51
$32.86
$51.51
$32.86
Thermostat
Part Number: 25500-26100
Other Names: Thermostat Assembly More Names
Description: Sonata Hybrid. 2.0L. More Info
Notes: Included With Thermostat Unit. More Notes
Fits:
  • Hyundai:
    • Santa Fe Sport,
    • Sonata
$26.53
$19.41
$26.53
$19.41
Thermostat
Part Number: 25500-37200
Other Names: Thermostat Assembly More Names
Description: XG300, XG350. Santa Fe. Tiburon. Sonata. Tucson. 3.5L. 2.7L. From 10/1/00. More Info
Fits:
  • Hyundai:
    • Santa Fe,
    • Sonata,
    • Tiburon,
    • Tucson,
    • XG300,
    • XG350
  • 1 more
$34.10
$24.95
$34.10
$24.95
Thermostat
Part Number: 1X4Z-8575-DB
Other Names: Thermostat Assembly More Names
Description: Ls6. 3.0L. To 8/22/03. From 8/22/03. More Info
Fits:
  • Lincoln:
    • LS
$29.49
$19.46
$29.49
$19.46
Thermostat
Part Number: XS7Z-8575-A
Other Names: Thermostat Assembly More Names
Description: Transit. 3.2L diesel. More Info
Notes: Included With Thermostat Housing. More Notes
Fits:
  • Ford:
    • Transit-150,
    • Transit-250,
    • Transit-350,
    • Transit-350 HD
$34.89
$23.03
$34.89
$23.03
Thermostat
Part Number: YU3Z-8575-AA
Other Names: Thermostat Assembly More Names
Description: Explorer, Mountaineer. 4.0L, sohc. To 7/24/00. With sport, sport trac. More Info
Notes: Included With Housing Assembly. More Notes
Fits:
  • Ford:
    • Explorer,
    • Explorer Sport,
    • Explorer Sport Trac
  • Mercury:
    • Mountaineer
$50.56
$32.26
$50.56
$32.26
Thermostat
Part Number: BE8Z-8575-Z
Other Names: Thermostat Assembly More Names
Description: Fiesta. Without turbo. 1.6L non turbo. More Info
Fits:
  • Ford:
    • Fiesta
$14.29
$9.43
$14.29
$9.43
Thermostat
Part Number: 000-501-09-65
Other Names: Oil Cooler Thermostat More Names
Description: 4.6L - v8. More Info
Notes: Included With Trans Cooler. More Notes
Fits:
  • Mercedes-Benz:
    • S 550
$150.00
$120.00
$150.00
$120.00
Thermostat
Part Number: 25500-03HB0
Other Names: Thermostat Assembly More Names
Description: Ioniq hybrid. Hybrid, plug-in, gas engine. More Info
Fits:
  • Hyundai:
    • Ioniq
$25.32
$18.53
$25.32
$18.53
Thermostat
Part Number: 25500-22600
Other Names: Thermostat Assembly More Names
Description: 1.5L. More Info
Fits:
  • Hyundai:
    • Accent
$27.60
$20.19
$27.60
$20.19
Thermostat
Part Number: 25500-2B000
Other Names: Thermostat Assembly More Names
Replaces: 25500-2B400
Description: Elantra GT. Veloster. Accent. Tucson. Sonata. Kona. 1.6L. 2018-19. Without turbo. More Info
Fits:
  • Hyundai:
    • Accent,
    • Elantra,
    • Elantra GT,
    • Kona,
    • Sonata,
    • Tucson,
    • Veloster
  • 2 more
$25.32
$18.53
$25.32
$18.53
Thermostat
Part Number: 25500-2E270
Other Names: Thermostat Assembly More Names
Description: Sonata. More Info
Fits:
  • Hyundai:
    • Sonata
$25.32
$18.53
$25.32
$18.53
Thermostat
Part Number: 25500-35531
Other Names: Thermostat Assembly More Names
Replaces: 25500-35530
Description: Santa Fe. Sonata. 2.7L. 2.5L. To 10/1/00. More Info
Fits:
  • Hyundai:
    • Santa Fe,
    • Sonata
$34.48
$25.23
$34.48
$25.23
Thermostat
Part Number: 25500-3C150
Other Names: Thermostat Assembly More Names
Description: Genesis sedan. Santa Fe. Azera. G80. 3.3L. 3.8L, 2017. More Info
Notes: Included With Thermostat Housing. Includes Thermostat Housing 2017 Model Year Only. Included With Housing Assembly. Included With Control... More Notes
Fits:
  • Genesis:
    • G80
  • Hyundai:
    • Azera,
    • Genesis,
    • Santa Fe,
    • Santa Fe XL
$40.13
$29.36
$40.13
$29.36
Thermostat
Part Number: BC3Z-8575-C
Positions: Left
Other Names: Thermostat Assembly More Names
Description: Left. F250, f350 super duty. 6.7L diesel, cooler & reservoir. More Info
Notes: Included With Intercooler. More Notes
Fits:
  • Ford:
    • F-250 Super Duty,
    • F-350 Super Duty
$67.45
$43.04
$67.45
$43.04
Thermostat
Part Number: BR3Z-8575-D
Other Names: Thermostat Assembly More Names
Replaces: BR3Z-8575-A, RT-1208-
Description: Continental. Mustang. 5.0L. 3.0L without hybrid. Without high output. More Info
Notes: Included With Thermostat Unit. More Notes
Fits:
  • Ford:
    • Mustang,
    • Police Interceptor Utility
  • Lincoln:
    • Aviator,
    • Continental
$27.42
$18.10
$27.42
$18.10
Thermostat
Part Number: 1X4Z-8575-A
Other Names: Thermostat Assembly More Names
Replaces: 1X4Z-8575-FA, RT-1172-
Description: Police Interceptor Sedan. Taurus, Sable. Continental. Fusion, MKZ. Taurus X. Edge, MKX. Explorer. Flex. MKT. MKS. 3.7L, 2009-12. 3.7L,... More Info
Notes: Included With Thermostat Housing. Included With Housing Assembly. Includes Thermostat Gasket. More Notes
Fits:
  • Ford:
    • Edge,
    • Explorer,
    • Flex,
    • Freestyle,
    • Fusion,
    • Police Interceptor Sedan,
    • Police Interceptor Utility,
    • Taurus,
    • Taurus X
  • Lincoln:
    • Continental,
    • MKS,
    • MKT,
    • MKX,
    • MKZ
  • Mercury:
    • Sable
  • 10 more
$22.05
$14.56
$22.05
$14.56
Thermostat
Part Number: 278-200-01-15
Other Names: Coolant Thermostat More Names
Description: 5.5L. Slk55 amg. More Info
Notes: Includes Thermostat Housing. More Notes
Fits:
  • Mercedes-Benz:
    • SLK 55 AMG®
$270.00
$216.00
$270.00
$216.00
Thermostat
Part Number: 642-200-20-15
Other Names: Coolant Thermostat More Names
Replaces: 642-200-02-15
Description: Gl320cdi. R320 cdi. Ml320 cdi. 3.0l turbo. 3.0l diesel. R320 bluetec. R350 bluetec. E350 bluetec. Sprinter van. Gl320 bluetec. Ml320... More Info
Notes: Includes Thermostat Housing. More Notes
Fits:
  • Mercedes-Benz:
    • E 350,
    • GL 320,
    • GL 350,
    • ML 320,
    • ML 350,
    • R 320,
    • R 350,
    • Sprinter 2500,
    • Sprinter 3500
  • 4 more
$61.00
$48.80
$61.00
$48.80
Thermostat
Part Number: F8RZ-8575-BA
Other Names: Thermostat Assembly More Names
Description: Escape, Mariner. Sable, Taurus. Cougar. 2.5L. 3.0L dohc. To 3/28/03. More Info
Fits:
  • Ford:
    • Contour,
    • Escape,
    • Taurus
  • Mercury:
    • Cougar,
    • Mystique,
    • Sable
  • 1 more
$24.25
$16.01
$24.25
$16.01
Thermostat
Part Number: F8RZ-8575-CA
Other Names: Thermostat Assembly More Names
Description: Escape, Mariner. Escort, Tracer. Cougar. Focus. 2.0L, dohc engine. More Info
Fits:
  • Ford:
    • Contour,
    • Escape,
    • Escort,
    • Focus
  • Mercury:
    • Cougar,
    • Mystique
  • 1 more
$12.07
$7.97
$12.07
$7.97
Thermostat
Part Number: E5TZ-8575-C
Other Names: Thermostat Assembly More Names
Description: F350. F150. F250 pick-up. E250-350 vans. E100-350 vans. 7.3l di diesel. More Info
Fits:
  • Ford:
    • E-250 Econoline Club Wagon,
    • E-350 Econoline,
    • E-350 Econoline Club Wagon,
    • F-150,
    • F-250,
    • F-350
  • 1 more
$30.31
$20.00
$30.31
$20.00
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®
$144.00
$115.20
$144.00
$115.20
Thermostat
Part Number: 8C3Z-8575-D
Other Names: Thermostat Assembly More Names
Description: F250 super duty. F350 super duty. 6.4L turbo diesel. More Info
Fits:
  • Ford:
    • F-250 Super Duty,
    • F-350 Super Duty
$49.82
$32.88
$49.82
$32.88
Thermostat
Part Number: 25500-03850
Other Names: Thermostat Assembly More Names
Description: Elantra. 1.4L. More Info
Fits:
  • Hyundai:
    • Elantra
$198.68
$145.35
$198.68
$145.35
Thermostat
Part Number: 25500-22250
Other Names: Thermostat Assembly More Names
Replaces: 25500-22050
Description: Scoupe. Accent. Sohc. More Info
Fits:
  • Hyundai:
    • Accent,
    • Scoupe
$26.94
$19.71
$26.94
$19.71
Thermostat
Part Number: 25500-25001
Other Names: Thermostat Assembly More Names
Description: Genesis Coupe. Sonata. 2.0L. 2.4L, 2006-08. More Info
Fits:
  • Hyundai:
    • Genesis Coupe,
    • Sonata
$34.10
$24.95
$34.10
$24.95
Thermostat
Part Number: 25500-2E272
Other Names: Thermostat Assembly More Names
Description: Sonata. 2.0L. More Info
Fits:
  • Hyundai:
    • Sonata
$25.32
$18.53
$25.32
$18.53
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: Elantra. Sonata. Scoupe. Excel. 1.6l. 1.8l. To 6/01/92. From 6/01/92. More Info
Fits:
  • Hyundai:
    • Elantra,
    • Excel,
    • Scoupe,
    • Sonata
$26.53
$19.41
$26.53
$19.41
Thermostat
Part Number: 25500-35540
Other Names: Thermostat Assembly More Names
Description: Santa Fe. 2.7L. More Info
Notes: Included With Thermostat Housing. More Notes
Fits:
  • Hyundai:
    • Santa Fe
$40.13
$29.36
$40.13
$29.36
Thermostat
Part Number: 25500-38001
Other Names: Thermostat Assembly More Names
Description: Santa Fe. Sonata. 2.4L. More Info
Fits:
  • Hyundai:
    • Santa Fe,
    • Sonata
$27.60
$20.19
$27.60
$20.19
Thermostat
Part Number: 25500-3C140
Other Names: Thermostat Assembly More Names
Description: Azera. 3.3L. More Info
Notes: Included With Housing Assembly. Included With Control Assembly. More Notes
Fits:
  • Hyundai:
    • Azera,
    • Santa Fe
$40.13
$29.36
$40.13
$29.36
Thermostat
Part Number: 25500-3L200
Other Names: Thermostat Assembly More Names
Description: G70. G90. G80. From 12/28/16. 3.3L, from 12/28/2016. More Info
Notes: Included With Thermostat Housing. More Notes
Fits:
  • Genesis:
    • G70,
    • G80,
    • G90
$204.68
$149.74
$204.68
$149.74
Thermostat
Part Number: 2W9Z-8575-AB
Other Names: Thermostat Assembly More Names
Description: Thunderbird. Ls8. 3.9L. More Info
Fits:
  • Ford:
    • Thunderbird
  • Lincoln:
    • LS
$22.22
$14.66
$22.22
$14.66
Thermostat
Part Number: K2GZ-8575-A
Other Names: Thermostat Assembly More Names
Description: Nautilus. Edge. 2.0L. More Info
Notes: Includes Thermostat Gasket. More Notes
Fits:
  • Ford:
    • Edge
  • Lincoln:
    • Nautilus
$31.44
$20.75
$31.44
$20.75
Thermostat
Part Number: LB5Z-8575-B
Other Names: Thermostat Assembly More Names
Description: 2.3L. More Info
Fits:
  • Ford:
    • Explorer,
    • Ranger
$30.45
$20.10
$30.45
$20.10
Thermostat
Part Number: BC3Z-8575-B
Positions: Right
Other Names: Thermostat Assembly More Names
Description: Right. F250, f350 super duty. 6.7L diesel, cooler & reservoir. More Info
Notes: Included With Intercooler. More Notes
Fits:
  • Ford:
    • F-250 Super Duty,
    • F-350 Super Duty
$67.45
$43.04
$67.45
$43.04
Thermostat
Part Number: BC3Z-8575-D
Other Names: Thermostat Assembly More Names
Replaces: BC3Z-8575-A, RT-1205-
Description: 6.7L diesel. F250, f350, f450, f550. F250, f350 super duty. More Info
Notes: Included With Water Manifold. More Notes
Fits:
  • Ford:
    • F-250 Super Duty,
    • F-350 Super Duty
$67.45
$43.04
$67.45
$43.04
Thermostat
Part Number: BR3Z-8575-E
Other Names: Thermostat Assembly More Names
Replaces: BR3Z-8575-C, RT-1217-
Description: Continental. Nautilus. Fusion. Edge. MKZ. MKX. 3.0L. 5.0L. F150. 2.7L turbo. More Info
Notes: Included With Thermostat Housing. Included With Water Manifold. More Notes
Fits:
  • Ford:
    • Edge,
    • F-150,
    • Fusion
  • Lincoln:
    • Continental,
    • MKX,
    • MKZ,
    • Nautilus
  • 2 more
$27.42
$18.10
$27.42
$18.10
Thermostat
Part Number: CM5Z-8575-D
Other Names: Thermostat Assembly More Names
Replaces: CM5Z-8575-A, CM5Z-8575-B, RT-1224-, RT-1235-
Description: EcoSport. Fiesta. Focus. 1.0L. To 1/23/17. Secondary thermostat. More Info
Fits:
  • Ford:
    • EcoSport,
    • Fiesta,
    • Focus
$29.62
$19.55
$29.62
$19.55
Thermostat
Part Number: XW4Z-8575-AA
Other Names: Thermostat Assembly More Names
Description: Ls6. 3.0L. More Info
Fits:
  • Lincoln:
    • LS
$26.75
$17.65
$26.75
$17.65
Thermostat
Part Number: 272-200-06-15
Other Names: Coolant Thermostat More Names
Replaces: 273-200-04-15
Description: E550. Cls550. 5.5L, 2007-11. 5.5L, 2007-09. More Info
Notes: Includes Housing. More Notes
Fits:
  • Mercedes-Benz:
    • CLK 550,
    • CLS 550,
    • E 550
$185.00
$148.00
$185.00
$148.00
Thermostat
Part Number: 642-200-21-15
Other Names: Coolant Thermostat More Names
Replaces: 642-200-04-15
Description: E320. Diesel. More Info
Notes: Includes Housing. More Notes
Fits:
  • Mercedes-Benz:
    • E 320
$214.00
$171.20
$214.00
$171.20
Thermostat
Part Number: 25500-23010
Other Names: Thermostat Assembly More Names
Replaces: 25500-23001
Description: Santa Fe. Elantra. Tiburon. Sonata. Accent. Tucson. Dohc. 2.0l. 1.6L. 2014-15. 2010-13. 2.4L, 2009-10. More Info
Notes: Included With Thermostat Unit. More Notes
Fits:
  • Hyundai:
    • Accent,
    • Elantra,
    • Santa Fe,
    • Santa Fe Sport,
    • Sonata,
    • Tiburon,
    • Tucson
  • 2 more
$29.65
$21.69
$29.65
$21.69
Thermostat
Part Number: 25500-3C130
Other Names: Thermostat Assembly More Names
Description: Genesis Coupe. Entourage. Veracruz. Santa Fe. Sonata. Azera. 3.8L. 3.5L. 3.3L. More Info
Notes: Included With Thermostat Housing. More Notes
Fits:
  • Hyundai:
    • Azera,
    • Entourage,
    • Genesis,
    • Genesis Coupe,
    • Santa Fe,
    • Sonata,
    • Veracruz
  • 2 more
$40.13
$29.36
$40.13
$29.36

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