Thermostats

Keeping your engine at the right temperature is something that makes a big difference when it comes to the efficient operation of your vehicle. It’s important that your Infiniti’s engine isn’t too hot or too cold, otherwise, you’ll have performance issues. The thermostat is an important part of your car’s cooling system that works to help regulate the temperature of your vehicle. The thermostat is something that will open and close as needed to allow the flow of coolant through to the engine, depending on if it needs it. The engine needs to be able to heat up a considerable amount so that it can operate efficiently and start properly. It can’t get too hot, though, or performance issues will start to occur, which is when your thermostat will open to allow the flow of coolant back through. It’s important that you pay attention to the condition of this part so that you can make repairs or replacements as needed. If you find that the temperature in your vehicle is fluctuating frequently or climbing higher than normal, this could be a sign of something wrong. Find the best OEM thermostat for your Infiniti model here on our site when you need a replacement.

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Thermostat
Part Number: 21200-4W000
Other Names: Thermostat Assembly More Names
Fits:
  • Infiniti:
    • G37
$28.25
$23.73
$28.25
$23.73
Thermostat
Part Number: 21200-4W01B
Other Names: Thermostat Assembly More Names
Replaces: 21200-4W010
Description: G35. QX4. Fx. 3.5L. Coupe,. 2001-03. More Info
Notes: Includes Thermostat Housing. More Notes
Fits:
  • Infiniti:
    • FX35,
    • G35,
    • QX4
$29.67
$24.92
$29.67
$24.92
Thermostat
Part Number: 21200-8J10B
Other Names: Thermostat Assembly More Names
Replaces: 21200-8J100
Description: I35. More Info
Fits:
  • Infiniti:
    • I35
$29.67
$24.92
$29.67
$24.92
Thermostat
Part Number: 21200-AD21A
Other Names: Thermostat Assembly More Names
Description: M56, Q70. 5.6L. More Info
Fits:
  • Infiniti:
    • M56,
    • Q70,
    • Q70L
$27.70
$23.27
$27.70
$23.27
Thermostat
Part Number: 21200-EA000
Other Names: Thermostat Assembly More Names
Replaces: 21200-6N210
Description: QX60 Hybrid. 2.5L. More Info
Notes: Includes Thermostat Seal Ring. More Notes
Fits:
  • Infiniti:
    • QX60
$28.25
$23.73
$28.25
$23.73
Thermostat
Part Number: 21200-0C82A
Other Names: Thermostat Assembly More Names
Replaces: 21200-0C810, 21200-0C811, 21200-40F00, 21200-53J00, 21200-53J10
Description: G20. Fujiseiko. Fuji seikoh. Nihon thermo. More Info
Fits:
  • Infiniti:
    • G20
$27.83
$23.38
$27.83
$23.38
Thermostat
Part Number: 21200-6P001
Replaces: 21200-6P000
Description: Q45. More Info
Fits:
  • Infiniti:
    • Q45
$28.25
$23.73
$28.25
$23.73
Thermostat
Part Number: 21200-JK20A
Other Names: Thermostat Assembly More Names
Description: EX35, EX37. FX35. G35. M35. 3.5L, 3.7L. 3.5L, 2009-10. More Info
Fits:
  • Infiniti:
    • EX35,
    • FX35,
    • G35,
    • M35
$29.45
$24.74
$29.45
$24.74
Thermostat
Part Number: 21200-V720A
Other Names: Thermostat Assembly More Names
Replaces: 2.12E+06, 21200-0B000, 21200-85E00, 21200-V7205, 21200-V7206
Description: QX4. 1997-00. More Info
Fits:
  • Infiniti:
    • QX4
$29.67
$24.92
$29.67
$24.92
Thermostat Gasket
Part Number: 13050-31U00
Other Names: Thermostat Unit Gasket, Engine Coolant Thermostat Gasket, Gasket-Water Inlet More Names
Description: Q70 Hybrid. M35 hybrid. EX35, EX37. M37, Q70. FX35. QX70. FX37. QX50. G35. G25. Q50. Q60. G37. Fx. Coupe,. 2001-03. 3.5L, 3.7L. 3.5L,... More Info
Fits:
  • Infiniti:
    • EX35,
    • EX37,
    • FX35,
    • FX37,
    • G25,
    • G35,
    • G37,
    • I30,
    • I35,
    • M35,
    • M35h,
    • M37,
    • Q40,
    • Q50,
    • Q60,
    • Q70,
    • Q70L,
    • QX4,
    • QX50,
    • QX70
  • 15 more
$5.88
$4.94
$5.88
$4.94
Thermostat Bolt
Part Number: 01125-E0181
Positions: Left, Right
Other Names: Bolt More Names
Description: Short. More Info
Fits:
  • Infiniti:
    • QX50
$2.42
$2.03
$2.42
$2.03
Thermostat Housing
Part Number: 11061-EZ30A
Other Names: Housing-Thermostat More Names
Fits:
  • Infiniti:
    • QX80
$173.95
$125.24
$173.95
$125.24
Thermostat Housing
Part Number: 13049-6P001
Positions: Upper
Other Names: Inlet-Water More Names
Replaces: 13049-6P000
Description: Q45. Upper. More Info
Fits:
  • Infiniti:
    • Q45
$93.57
$67.37
$93.57
$67.37
Thermostat Unit
Part Number: 21200-9HP0A
Other Names: Thermostat More Names
Replaces: 21200-JA10A
Description: JX35,QX60. 3.5L. More Info
Notes: Includes Thermostat Housing. More Notes
Fits:
  • Infiniti:
    • JX35,
    • QX60
$29.67
$24.92
$29.67
$24.92
Thermostatic Switch
Part Number: 27723-AG000
Other Names: Thermistor, Thermo Sensor, Sensor, Sensor Assembly-Thermistor More Names
Description: EX35, EX37. G25, G37. QX50. G35. Q60. Q40. Sedan,. Coupe,. More Info
Notes: Included With AC & Heater Assembly. Included With Evaporator Assembly. More Notes
Fits:
  • Infiniti:
    • EX35,
    • EX37,
    • FX35,
    • FX37,
    • FX45,
    • FX50,
    • G25,
    • G35,
    • G37,
    • M35,
    • M45,
    • Q40,
    • Q60,
    • QX50,
    • QX70
  • 10 more
$58.73
$45.81
$58.73
$45.81
Thermostat Housing
Part Number: 11061-7S000
Other Names: Housing-Thermostat More Names
Description: QX56. More Info
Fits:
  • Infiniti:
    • QX56
$101.77
$73.27
$101.77
$73.27
Thermostat Bolt
Part Number: 11916-31U0B
Other Names: Bolt More Names
Replaces: 11916-31U05
Fits:
  • Infiniti:
    • I30,
    • I35
$0.60
$0.50
$0.60
$0.50
Thermostat Gasket
Part Number: 13050-5NA1A
Other Names: Gasket, Gasket-Water Inlet More Names
Description: QX50. More Info
Fits:
  • Infiniti:
    • QX50
$6.32
$5.31
$6.32
$5.31
Thermostat Bolt
Part Number: 01125-E0251
Other Names: Bolt More Names
Description: Long. More Info
Fits:
  • Infiniti:
    • QX50
$8.68
$7.29
$8.68
$7.29
Thermostat Housing
Part Number: 11060-31U0B
Other Names: Outlet-Water More Names
Replaces: 11060-31U00, 11060-31U01
Description: I30. More Info
Fits:
  • Infiniti:
    • I30
$270.47
$194.74
$270.47
$194.74
Thermostat Housing
Part Number: 11061-0W000
Other Names: Housing-Thermostat More Names
Description: QX4. 1997-00. More Info
Fits:
  • Infiniti:
    • QX4
$74.32
$57.97
$74.32
$57.97
Thermostat Housing
Part Number: 11061-1CA0A
Other Names: Housing-Thermostat More Names
Description: M56, Q70. 5.0L. 5.6L. More Info
Fits:
  • Infiniti:
    • FX50,
    • M56,
    • Q70,
    • Q70L,
    • QX70
$292.55
$210.64
$292.55
$210.64
Thermostatic Switch
Part Number: 27723-4P000
Other Names: Sensor, Sensor-Intake More Names
Description: I30. I35. More Info
Notes: Included With Evaporator Assembly. More Notes
Fits:
  • Infiniti:
    • I30,
    • I35,
    • Q45
$28.12
$23.62
$28.12
$23.62
Thermostat Housing
Part Number: 11061-1LA0A
Positions: Lower
Other Names: Engine Coolant Thermostat Housing, Housing - Thermostat More Names
Description: QX56. To 08/2015. More Info
Notes: Includes Thermostat For 2016-2019 Model Years. More Notes
Fits:
  • Infiniti:
    • QX56,
    • QX80
$125.07
$90.05
$125.07
$90.05
Thermostat Housing
Part Number: 11061-5NA0A
Other Names: Thermostat, Housing-Thermostat More Names
Description: QX50. More Info
Notes: IncludesThermostat. More Notes
Fits:
  • Infiniti:
    • QX50
$260.32
$187.43
$260.32
$187.43
Thermostat Unit
Part Number: 21200-31U03
Other Names: Thermostat More Names
Replaces: 21200-31U00, 21200-31U01, 21200-31U02
Description: Q70 Hybrid. M35 hybrid. EX35, EX37. M37, Q70. QX70. FX35. FX37. QX50. I30. Q60. G25. Q50. G37. Q40. 3.5L, 3.7L. More Info
Notes: 3.0L Thermostat Includes Water Control Valve. More Notes
Fits:
  • Infiniti:
    • EX35,
    • EX37,
    • FX35,
    • FX37,
    • G25,
    • G37,
    • I30,
    • M35h,
    • M37,
    • Q40,
    • Q50,
    • Q60,
    • Q70,
    • Q70L,
    • QX50,
    • QX70
  • 11 more
$29.67
$24.92
$29.67
$24.92
Thermostat Unit
Part Number: 21200-HG00C
Other Names: Thermostat More Names
Description: Q60. Q50. 2.0L. More Info
Fits:
  • Infiniti:
    • Q50,
    • Q60
$31.07
$26.10
$31.07
$26.10
Thermostat Unit
Part Number: 21200-HG00H
Other Names: Thermostat More Names
Replaces: 21200-HG00F
Description: QX30. More Info
Notes: Includes Thermostat Housing. More Notes
Fits:
  • Infiniti:
    • QX30
$29.85
$25.07
$29.85
$25.07
Thermostat Unit Gasket
Part Number: 13050-ZA000
Other Names: Thermostat Gasket, Gasket-Water Inlet More Names
Description: JX35, QX60. 3.5L. More Info
Fits:
  • Infiniti:
    • JX35,
    • QX60
$1.92
$1.61
$1.92
$1.61
Thermostat O-Ring
Part Number: 21049-AD22A
Other Names: Engine Coolant Thermostat Gasket, Seal O Ring More Names
Description: 5.6L. O-Ring. More Info
Notes: Included With Thermostat. More Notes
Fits:
  • Infiniti:
    • Q70,
    • Q70L
$6.35
$5.33
$6.35
$5.33
Engine Coolant Thermostat
Part Number: 21200-42L0A
Other Names: Thermostat, Thermostat Assembly More Names
Replaces: 21200-42L05, 21200-42L06
Description: J30. More Info
Fits:
  • Infiniti:
    • J30
$28.25
$23.73
$28.25
$23.73
Engine Coolant Thermostat
Part Number: 21200-60J00
Other Names: Thermostat, Thermostat Assembly More Names
Replaces: 21200-60J11
Description: G20. Fuji. Nihon. From 07/1999. More Info
Fits:
  • Infiniti:
    • G20
$26.62
$22.36
$26.62
$22.36
Engine Coolant Thermostat
Part Number: 21200-V5015
Other Names: Thermostat More Names
Fits:
  • Infiniti:
    • M30
$26.62
$22.36
$26.62
$22.36
Thermostat Housing Gasket
Part Number: 13050-7S000
Other Names: Gasket-Water Inlet More Names
Fits:
  • Infiniti:
    • QX56
$3.25
$2.73
$3.25
$2.73
Thermostat Housing Bolt
Part Number: 081A6-8701A
Other Names: Clip More Names
Fits:
  • Infiniti:
    • QX56,
    • QX80
$5.50
$4.62
$5.50
$4.62
Thermostat Housing Gasket
Part Number: 13050-AR001
Other Names: Gasket-Water Inlt More Names
Replaces: 13050-AR000
Description: 4.5L. More Info
Fits:
  • Infiniti:
    • FX45,
    • M45,
    • Q45
$7.70
$6.47
$7.70
$6.47
Engine Coolant Thermostat
Part Number: 21200-1LA1A
Other Names: Thermostat, Thermostat Assembly More Names
Replaces: 21200-1LA0A, 21200-AD200, 21200-AD201
Description: QX56. FX50. QX70. M45. Q45. Fx. 5.0L. 5.6L. 4.5L. To 08/2015. More Info
Fits:
  • Infiniti:
    • FX45,
    • FX50,
    • M45,
    • M56,
    • Q45,
    • Q70,
    • Q70L,
    • QX56,
    • QX70,
    • QX80
  • 5 more
$27.70
$23.27
$27.70
$23.27
Engine Coolant Thermostat Housing
Part Number: 14075-2Y001
Positions: Upper Rear
Other Names: Connector, Outlet Pipe Connector More Names
Description: Rear. 2001-03. Control Valve. More Info
Fits:
  • Infiniti:
    • I30,
    • I35,
    • QX4
$34.63
$29.09
$34.63
$29.09
Engine Coolant Thermostat Gasket
Part Number: 21049-ED00A
Other Names: Seal-O Ring More Names
Replaces: 21049-6N210, 21049-ED000
Description: O-Ring. More Info
Fits:
  • Infiniti:
    • QX60
$2.68
$2.25
$2.68
$2.25
Engine Coolant Thermostat Housing
Part Number: 11061-02P01
Positions: Lower
Other Names: Housing Thermostat More Names
Fits:
  • Infiniti:
    • M30
$67.67
$52.78
$67.67
$52.78
Engine Coolant Thermostat Gasket
Part Number: 11062-5ZM0A
Other Names: Gasket-Water Outlet More Names
Description: From 08/2015. More Info
Fits:
  • Infiniti:
    • QX80
$10.15
$8.53
$10.15
$8.53
Engine Coolant Thermostat Kit
Part Number: 21200-31U1B
Other Names: Thermostat, Thermostat Assembly More Names
Replaces: 21200-31U13
Description: M35. G35. Sedan. 3.5L, 2006-08. Incl.Housing and Thermostat. More Info
Fits:
  • Infiniti:
    • FX35,
    • G35,
    • M35
$29.67
$24.92
$29.67
$24.92
Thermostat Unit O-Ring
Part Number: 21306-HG00C
Other Names: Thermostat Gasket, Thermostat O-Ring, Seal-O Ring More Names
Description: Q50. 2.0L, type 2. More Info
Notes: Included With Thermostat Unit. More Notes
Fits:
  • Infiniti:
    • Q50,
    • Q60
$3.55
$2.98
$3.55
$2.98
Engine Coolant Thermostat Gasket
Part Number: 21049-6N220
Other Names: Seal-O Ring More Names
Replaces: 21049-8P300, 21049-EL00A, 21049-EL00B
Description: Control Valve. More Info
Fits:
  • Infiniti:
    • FX45,
    • M45,
    • Q45,
    • QX4
$3.07
$2.58
$3.07
$2.58
Engine Coolant Thermostat Housing Gasket
Part Number: 11062-5CA2A
Other Names: Water Outlet Gasket, Washer Outlet More Names
Description: 3.0L. More Info
Fits:
  • Infiniti:
    • Q50,
    • Q60
$3.28
$2.76
$3.28
$2.76
Thermostat
Part Number: 21200-42L01
Replaces: 21200-42L00
$26.62
$22.36
$26.62
$22.36
Water Outlet
Part Number: 11060-2Y00A
Other Names: Thermostat Housing, Outlet-Water More Names
Replaces: 11060-2Y000
Description: I30. More Info
Fits:
  • Infiniti:
    • I30
$256.53
$184.70
$256.53
$184.70
Water Pump O-Ring
Part Number: 21306-HG00F
Positions: Rear
Other Names: Gasket, Thermostat Unit Seal, Water Pump Seal, Seal Ring, Thermostat O-Ring, Thermostat Gasket, Thermostat Unit O-Ring, Seal-O Ring More Names
Replaces: 21306-HG00B
Description: QX30. Q60. Q50. Rear. 2.0L, type 1. 2.0L, type 2. Thermostat gasket. More Info
Notes: Included With Water Pump. Included With Thermostat Unit. More Notes
Fits:
  • Infiniti:
    • Q50,
    • Q60,
    • QX30
$12.78
$10.74
$12.78
$10.74
Connector Pipe Gasket
Part Number: 13050-1CA1A
Other Names: Thermostat Housing Gasket, Engine Coolant Thermostat Housing Gasket, Gasket-Water Inlet More Names
Description: 5.0L. 5.6L. From 08/2015. More Info
Fits:
  • Infiniti:
    • FX50,
    • M56,
    • Q70,
    • Q70L,
    • QX70,
    • QX80
  • 1 more
$1.58
$1.33
$1.58
$1.33
Air Temp Sensor
Part Number: 27723-4GF1A
Other Names: Thermostatic Switch, Sensor Assembly-Intake More Names
Description: Q50. More Info
Notes: Included With AC & Heater Assembly. More Notes
Fits:
  • Infiniti:
    • Q50,
    • Q60
$28.50
$23.94
$28.50
$23.94

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