Thermostat

The thermostat in a car sits between the engine and the radiator, working to help regulate the flow of the coolant from the radiator to the engine to prevent it from overheating. The thermostat turns the flow of coolant on and off depending on the temperature of the engine. When the engine is cold it closes the valve, and when it is sufficiently warm it allows the coolant to flow and dissipate heat. When the thermostat malfunctions, the engine will either overheat or not get sufficent heat to function properly. Other symptoms that the original thermostat is failing include erratic temperature readings. You might see the temperature jump into the red zone within fifteen minutes of starting the car, or might see it read too low. You can also check to see if there is any leaking coolant around the thermostat housing or underneath your vehicle. A malfunctioning thermostat needs to be replaced right away so you can protect the condition of your engine. When you find yourself in need of genuine thermostat or other cooling system components, shop the selection we have here on our site. We sell OEM Toyota thermostats to make replacements as simple as possible.

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Thermostat
Part Number: 32971-WAA01
Other Names: Thermostat Transmission, More Names
Fits:
  • Toyota:
    • GR Supra
$86.97
$59.87
$86.97
$59.87
Thermostat
Part Number: 90916-03147
Other Names: Thermostat Element, More Names
Description: IQ. More Info
Fits:
  • Scion:
    • iQ
$29.48
$21.26
$29.48
$21.26
Thermostat
Part Number: 32971-45010
Other Names: Thermostat Transmission, More Names
Description: 3.5L, 2017-20. More Info
Fits:
  • Toyota:
    • Sienna
$159.84
$109.54
$159.84
$109.54
Thermostat Housing
Part Number: 16321-11011
Other Names: Engine Coolant Thermostat Housing, Inlet Water, More Names
Description: Tercel. Paseo. Auto trans. Water inlet. Liftback, sedan, wagon. More Info
Fits:
  • Toyota:
    • Paseo,
    • Tercel
$55.80
$38.41
$55.80
$38.41
Thermostat Housing
Part Number: 16323-0P010
Positions: Lower
Other Names: Water Inlet, Water Separator, Engine Coolant Thermostat Housing, Housing Water Inlet, More Names
Replaces: 16323-31011
Description: FJ Cruiser. Tacoma. 4-runner. From 3/04. 6 cylinder. Japan Built Part. Exc.Towing Package. 4.0L, without oil cooler. 4.0L, without... More Info
Fits:
  • Toyota:
    • 4Runner,
    • FJ Cruiser,
    • Tacoma
$143.63
$98.44
$143.63
$98.44
Thermostat Housing
Part Number: 16323-0P030
Positions: Lower
Other Names: Housing, Water Inlet, Engine Coolant Thermostat Housing, Housing Water Inlet, More Names
Description: Highlander. Avalon. Sienna. Venza. Camry. Usa part. Usa built. From 6/10. 3.5L, 2011-16. 3.5L, us built. Exc.Japan Built.... More Info
Fits:
  • Toyota:
    • Avalon,
    • Camry,
    • Highlander,
    • RAV4,
    • Sienna,
    • Venza
  • 1 more
$82.92
$57.08
$82.92
$57.08
Thermostat Gasket
Part Number: 16346-50010
Other Names: Gasket, Gasket Thermostat, More Names
Description: Land Cruiser. Sequoia. Tundra. 4.7L. More Info
Fits:
  • Toyota:
    • 4Runner,
    • Land Cruiser,
    • Sequoia,
    • Tundra
$5.52
$3.98
$5.52
$3.98
Thermostat Housing
Part Number: 16321-10011
Other Names: Engine Coolant Thermostat Housing, Inlet Water, More Names
Description: Tercel. Paseo. Water inlet. Manual trans. Liftback, sedan, wagon. More Info
Fits:
  • Toyota:
    • Paseo,
    • Tercel
$55.80
$38.41
$55.80
$38.41
Thermostat Housing
Part Number: 16321-20030
Positions: Upper
Other Names: Water Inlet, Cover, Engine Coolant Thermostat Housing, Inlet Water, More Names
Replaces: 16321-0A030
Description: Highlander Hybrid. Solara. Avalon. Sienna. Camry. 2008-10. 3.0 & 3.3L. 3.0l, 3.3l. From 01/2003. More Info
Fits:
  • Toyota:
    • Avalon,
    • Camry,
    • Highlander,
    • Sienna,
    • Solara
$70.48
$48.51
$70.48
$48.51
Thermostat Gasket
Part Number: 16325-0T030
Other Names: Thermostat Seal, Thermostat Housing Seal, Gasket, Water Inlet Gasket, Engine Coolant Thermostat Seal, Engine Coolant Thermostat... More Names
Replaces: 16325-0H030, 16325-28010
Description: Camry Hybrid. Highlander. Corolla. Sienna. Solara. Matrix. Venza. RAV4. C-HR. XB. XD. TC. IM. 2.5L. 2.4L. O-Ring. Japan part. From... More Info
Fits:
  • Scion:
    • iM,
    • tC,
    • xB,
    • xD
  • Toyota:
    • C-HR,
    • Camry,
    • Corolla,
    • Corolla iM,
    • Highlander,
    • Matrix,
    • RAV4,
    • Sienna,
    • Solara,
    • Venza
  • 9 more
$6.64
$4.79
$6.64
$4.79
Thermostat Housing
Part Number: 16321-0F010
Other Names: Water Inlet, Thermostat Cover, Housing, Inlet Tube, Inlet Water, More Names
Replaces: 16321-50020
Description: Land Cruiser. Sequoia. Tundra. 4.7L. Cover. Outlet. Water inlet. More Info
Fits:
  • Toyota:
    • 4Runner,
    • Land Cruiser,
    • Sequoia,
    • Tundra
$68.24
$46.98
$68.24
$46.98
Thermostat Housing
Part Number: 16323-31020
Positions: Lower
Other Names: Engine Coolant Thermostat Housing, Multiple-Part Name Code, More Names
Description: 4-runner. 6 cylinder. Towing Package. 4.0L, with oil cooler. More Info
Fits:
  • Toyota:
    • 4Runner
$79.85
$54.97
$79.85
$54.97
Thermostat Gasket
Part Number: 16325-36010
Other Names: Engine Coolant Thermostat Housing Seal, Thermostat Unit Seal, Water Inlet Seal, Gasket Water Inlet, More Names
Description: Avalon hybrid. Camry Hybrid. 2.5L. More Info
Notes: Included With Water Inlet W/thermostat. Included With Thermostat Unit. More Notes
Fits:
  • Toyota:
    • Avalon,
    • Camry
$5.32
$3.84
$5.32
$3.84
Thermostat Gasket
Part Number: 16326-37020
Other Names: Thermostat Housing Gasket, Water Inlet Gasket, Gasket Water Inlet, More Names
Description: Prius Prime. Prius AWD-e. Prius V. 1.8L, reservoir & hoses, with hybrid le. More Info
Notes: Included With Thermostat Housing. Included With Water Inlet. More Notes
Fits:
  • Toyota:
    • Corolla,
    • Prius,
    • Prius AWD-e,
    • Prius Plug-In,
    • Prius Prime,
    • Prius V
  • 1 more
$5.40
$3.90
$5.40
$3.90
Thermostat Housing
Part Number: 16331-35041
Other Names: Engine Coolant Thermostat Housing, Outlet Water, More Names
Replaces: 16331-35040
Description: Celica. 2wd. Gas. 4 cylinder. Fuel injection. Pick-up, 4-runner. Without trailer pkg. More Info
Fits:
  • Toyota:
    • 4Runner,
    • Celica,
    • Pickup
$62.21
$42.82
$62.21
$42.82
Thermostat Housing
Part Number: 16321-22050
Other Names: Engine Coolant Thermostat Housing, Inlet Water, More Names
Replaces: 16321-22060
Description: Celica. MR2. Gt. Type-B. To 04-00. To 05/2000. More Info
Fits:
  • Toyota:
    • Celica,
    • Corolla,
    • MR2 Spyder
$61.46
$42.31
$61.46
$42.31
Thermostat Housing
Part Number: 16321-22070
Other Names: Water Inlet, Engine Coolant Thermostat Housing, Inlet Water, More Names
Description: Corolla. Matrix. Celica. MR2. Gt. Type-C. To 05/2000. From 04-00. Without xrs. From 04/2000. More Info
Fits:
  • Toyota:
    • Celica,
    • Corolla,
    • Matrix,
    • MR2 Spyder
$19.91
$14.36
$19.91
$14.36
Thermostat Housing
Part Number: 16331-35051
Other Names: Engine Coolant Thermostat Housing, Outlet Water, More Names
Replaces: 16331-35050
Description: Gas. Carb. 4 cylinder. Pick-up, 4-runner. More Info
Fits:
  • Toyota:
    • Pickup
$63.70
$43.85
$63.70
$43.85
Thermostat Unit
Part Number: 32971-34030
Other Names: Thermostat Transmission, More Names
Description: 4.6L, with towing package. More Info
Fits:
  • Toyota:
    • Tundra
$159.84
$109.54
$159.84
$109.54
Thermostat Housing Stud
Part Number: 90080-11540
Other Names: Engine Coolant Thermostat Housing Stud, Bolt Stud, More Names
Replaces: 90116-06070
Description: 3.0L. 3.3L. More Info
Fits:
  • Toyota:
    • Highlander
$1.21
$0.88
$1.21
$0.88
Thermostat Housing Stud
Part Number: 90080-11541
Other Names: Engine Coolant Thermostat Housing Stud, Bolt Stud, More Names
Replaces: 92122-60612
Fits:
  • Toyota:
    • Highlander
$1.21
$0.88
$1.21
$0.88
Thermostat Housing Bolt
Part Number: 90105-A0338
Other Names: Engine Coolant Thermostat Housing Bolt, Bolt Flange, More Names
Replaces: 90105-06352
Fits:
  • Toyota:
    • Corolla
$0.72
$0.52
$0.72
$0.52
Engine Coolant Thermostat
Part Number: 90916-03046
Other Names: Thermostat, More Names
Replaces: 90916-03069
Description: Corolla. Celica. Tercel. Paseo. Camry. RAV4. Van. MR2. St. 1.8L. 2.2L. Coupe. Gt, gt-s. To 2/87. To 3/96. To 02/85. 4 cylinder. From... More Info
Fits:
  • Toyota:
    • Camry,
    • Celica,
    • Corolla,
    • MR2,
    • Paseo,
    • RAV4,
    • Tercel,
    • Van
  • 3 more
$28.69
$20.70
$28.69
$20.70
Engine Coolant Thermostat
Part Number: 90916-03078
Other Names: Thermostat, More Names
Replaces: 90916-03022, 90916-03023, 90916-03029, 90916-03036, 90916-03040, 90916-03055
Description: Cressida. Starlet. Celica. Supra. All. Gas. 4 cylinder. Without turbo. Pick-up, 4-runner. Without fuji thomson. More Info
Fits:
  • Toyota:
    • 4Runner,
    • Celica,
    • Corolla,
    • Cressida,
    • Pickup,
    • Starlet,
    • Supra
  • 2 more
$28.52
$20.58
$28.52
$20.58
Engine Coolant Thermostat
Part Number: 90916-03079
Other Names: Thermostat, More Names
Description: T100. Gas. 6 cylinder. Without turbo. Pick-up, 4-runner. More Info
Fits:
  • Toyota:
    • 4Runner,
    • Pickup,
    • T100
$35.49
$25.18
$35.49
$25.18
Engine Coolant Thermostat
Part Number: 90916-03093
Other Names: Thermostat, More Names
Description: 4Runner. Tacoma. Yaris. Prius. Supra. Echo. XB. XA. 2.7L. To 08/2015. Gas engine. More Info
Fits:
  • Scion:
    • xA,
    • xB
  • Toyota:
    • 4Runner,
    • Echo,
    • Prius,
    • Supra,
    • Tacoma,
    • Yaris
  • 3 more
$28.69
$20.70
$28.69
$20.70
Engine Coolant Thermostat
Part Number: 90916-03138
Other Names: Thermostat, More Names
Description: Sequoia. Tundra. 4.7L. 4-runner. 8 cylinder. From 07/2006. More Info
Fits:
  • Toyota:
    • 4Runner,
    • Land Cruiser,
    • Sequoia,
    • Tundra
$48.96
$34.73
$48.96
$34.73
Engine Coolant Thermostat
Part Number: 90916-A3003
Other Names: Thermostat, More Names
Replaces: 90916-03084, 90916-03129
Description: Highlander Hybrid. Corolla. Avalon. Solara. Celica. Sienna. Matrix. Venza. Camry. RAV4. MR2. TC. XD. 3.0L. 2.5L. Gt-s. Type-B. 2008-10.... More Info
Fits:
  • Scion:
    • tC,
    • xD
  • Toyota:
    • Avalon,
    • Camry,
    • Celica,
    • Corolla,
    • Highlander,
    • Matrix,
    • MR2 Spyder,
    • RAV4,
    • Sienna,
    • Solara,
    • Venza
  • 8 more
$28.55
$20.59
$28.55
$20.59
Thermostat Housing Gasket
Part Number: 16326-37010
Other Names: Engine Coolant Thermostat Housing Gasket, Gasket Water Inlet, More Names
Description: Without valvematic eng. More Info
Notes: Included With Timing Cover. More Notes
Fits:
  • Scion:
    • xD
  • Toyota:
    • Corolla,
    • Matrix
$8.19
$5.90
$8.19
$5.90
Engine Coolant Thermostat
Part Number: 90916-03075
Other Names: Thermostat, More Names
Description: Tacoma. Tundra. Celica. Camry. T100. MR2. 3.4L. Gt, gt-s. 4-runner. 6 cylinder. Without turbo. More Info
Fits:
  • Toyota:
    • 4Runner,
    • Camry,
    • Celica,
    • MR2,
    • T100,
    • Tacoma,
    • Tundra
  • 2 more
$31.21
$22.15
$31.21
$22.15
Engine Coolant Thermostat
Part Number: 90916-03090
Other Names: Thermostat, More Names
Replaces: 90916-03060
Description: Corolla. Celica. Camry. RAV4. MR2. 2.2L. Coupe. Gt, gt-s. With gts. From 2/87. From 3/96. 4 cylinder. From 02/1987. Without turbo. More Info
Fits:
  • Toyota:
    • Camry,
    • Celica,
    • Corolla,
    • MR2,
    • RAV4,
    • Solara
  • 1 more
$31.52
$22.36
$31.52
$22.36
Engine Coolant Thermostat
Part Number: 90916-03145
Other Names: Thermostat, More Names
Description: Corolla. Matrix. Vendor:fuji seiko. 1.8L, auto trans, type c. 1.8L, japan built, type c. More Info
Notes: Order By Description. More Notes
Fits:
  • Scion:
    • xD
  • Toyota:
    • Corolla,
    • Matrix
$28.49
$20.56
$28.49
$20.56
Engine Coolant Thermostat
Part Number: 90916-03125
Other Names: Thermostat, More Names
Description: From 07/00. More Info
Fits:
  • Toyota:
    • Celica,
    • Corolla,
    • MR2 Spyder
$28.55
$20.59
$28.55
$20.59
Engine Coolant Thermostat
Part Number: 90916-03136
Other Names: Thermostat, More Names
Replaces: 90916-C3001
Description: Camry Hybrid. Highlander. Corolla. Solara. Matrix. RAV4. XB. TC. Japan part. Japan Built. From 10/2005. 2.4L, from 10/05. Engine #... More Info
Fits:
  • Scion:
    • tC,
    • xB
  • Toyota:
    • Camry,
    • Corolla,
    • Highlander,
    • Matrix,
    • RAV4,
    • Solara
  • 3 more
$28.52
$20.58
$28.52
$20.58
Engine Coolant Thermostat Housing
Part Number: 16323-0P020
Positions: Lower
Other Names: Water Inlet, Thermostat Housing, Housing, Housing Water Inlet, More Names
Replaces: 16323-31021
Description: 4Runner. Tacoma. Tundra. Exc.Japan Built Part. 4.0L, with oil cooler. 4.0L, with towing package. More Info
Fits:
  • Toyota:
    • 4Runner,
    • Tacoma,
    • Tundra
$114.99
$78.81
$114.99
$78.81
Engine Coolant Thermostat Housing
Part Number: 16323-20020
Positions: Lower
Other Names: Thermostat Housing, Housing, Water Inlet, Housing Water Inlet, More Names
Replaces: 16323-0A020, 16323-0A021
Description: Highlander Hybrid. Sienna. 3.0 & 3.3L. From 01/2003. More Info
Fits:
  • Toyota:
    • Avalon,
    • Camry,
    • Highlander,
    • Sienna,
    • Solara
$148.52
$101.79
$148.52
$101.79
Engine Coolant Thermostat Gasket
Part Number: 16325-62010
Other Names: Thermostat Gasket, Gasket, Thermostat Seal, Water Inlet Gasket, Water Inlet Seal, Thermostat Housing Gasket, Engine Coolant... More Names
Replaces: 16325-0H020
Description: Highlander Hybrid. Corolla. Tundra. Avalon. Sienna. Solara. Celica. Camry. Yaris. Venza. Prius. Supra. Echo. RAV4. MR2. XD. XB. XA.... More Info
Fits:
  • Scion:
    • xA,
    • xB,
    • xD
  • Toyota:
    • 4Runner,
    • Avalon,
    • Camry,
    • Celica,
    • Corolla,
    • Echo,
    • Highlander,
    • Matrix,
    • MR2,
    • MR2 Spyder,
    • Previa,
    • Prius,
    • RAV4,
    • Sienna,
    • Solara,
    • Supra,
    • T100,
    • Tacoma,
    • Tundra,
    • Venza,
    • Yaris
  • 19 more
$7.01
$5.05
$7.01
$5.05
Engine Coolant Thermostat Gasket
Part Number: 16325-76010
Other Names: Gasket, Thermostat O-Ring, Thermostat Gasket, Gasket Water Inlet, More Names
Replaces: 16325-0C030
Description: 4Runner. Tacoma. 2.7L. O-Ring. From 03/96. More Info
Fits:
  • Toyota:
    • 4Runner,
    • Previa,
    • T100,
    • Tacoma
$6.64
$4.79
$6.64
$4.79
Engine Coolant Thermostat Gasket
Part Number: 16326-47020
Other Names: Thermostat Gasket, Thermostat Housing O-Ring, Gasket Water Inlet, More Names
Replaces: 16326-47010
Description: Avalon hybrid. RAV4. O-Ring. Without hybrid, reservoir & hoses. More Info
Notes: Included With Thermostat Housing. More Notes
Fits:
  • Toyota:
    • Avalon,
    • Camry,
    • RAV4
$0.86
$0.62
$0.86
$0.62
Inlet Sub Assembly Wate
Part Number: 16031-24011
Other Names: More Names
Replaces: 16031-24010
Description: Corolla hatchback. More Info
Notes: Includes Thermostat. More Notes
$57.29
$39.43
$57.29
$39.43
Engine Coolant Thermostat Gasket
Part Number: 16346-66020
Other Names: Gasket Thermostat, More Names
Fits:
  • Toyota:
    • Land Cruiser
$5.52
$3.98
$5.52
$3.98
Engine Coolant Thermostat Housing
Part Number: 16321-65030
Other Names: Thermostat Housing, Water Inlet, Inlet Water, More Names
Replaces: 16321-65010, 16321-65020
Description: T100. 6 cylinder. More Info
Fits:
  • Toyota:
    • 4Runner,
    • Pickup,
    • T100
$55.05
$37.90
$55.05
$37.90
Engine Coolant Thermostat Housing
Part Number: 16323-0S020
Positions: Lower
Other Names: Water Inlet, Thermostat Housing, Housing Water Inlet, More Names
Replaces: 16323-38010
Description: Land Cruiser. Sequoia. Tundra. Exc.Towing Package. Regular cab, double cab. 5.7L, without towing package. More Info
Fits:
  • Toyota:
    • Land Cruiser,
    • Sequoia,
    • Tundra
$64.85
$44.64
$64.85
$44.64
Engine Coolant Thermostat Housing
Part Number: 16323-0S030
Positions: Lower
Other Names: Housing, Thermostat Housing, Water Inlet, Engine Coolant Inlet Flange, Housing Water Inlet, More Names
Replaces: 16323-38050
Description: Sequoia. Tundra. 4.6L. Housing. Manufactured outside jpn. More Info
Fits:
  • Toyota:
    • Sequoia,
    • Tundra
$72.75
$50.08
$72.75
$50.08
Engine Coolant Thermostat Gasket
Part Number: 16341-35010
Other Names: Thermostat Gasket, Water Inlet Gasket, Gasket Water Outlet, More Names
Replaces: 16341-65010
Description: 6 cylinder. All models. More Info
Fits:
  • Toyota:
    • 4Runner,
    • Celica,
    • Cressida,
    • Pickup,
    • Supra,
    • T100
  • 1 more
$3.16
$2.28
$3.16
$2.28
Engine Coolant Thermostat Housing Gasket
Part Number: 16325-31010
Other Names: Housing Gasket, Thermostat Housing Gasket, Thermostat Gasket, Thermostat Housing Seal, Gasket Water Inlet More Names
Description: RAV4. 2011-13. Exc.Japan Built. 3.5L, japan built. Japan Built Part. Engine # jxxxxxx-lxxxxxx. Engine # axxxxxx-cxxxxxx. Engine #... More Info
Fits:
  • Toyota:
    • 4Runner,
    • Avalon,
    • Camry,
    • FJ Cruiser,
    • Highlander,
    • RAV4,
    • Sienna,
    • Tacoma,
    • Tundra,
    • Venza
  • 5 more
$1.93
$1.39
$1.93
$1.39
Engine Coolant Thermostat Housing Gasket
Part Number: 16119-66020
Other Names: Gasket Thermostat G, More Names
Fits:
  • Toyota:
    • Land Cruiser
$6.38
$4.60
$6.38
$4.60
Engine Coolant Thermostat Housing Gasket
Part Number: 16325-0P020
Other Names: Thermostat Housing Gasket, Thermostat Housing Seal, Housing Gasket, Gasket Water Inlet, More Names
Description: To 07/2007. From 07/2007. 3.5L, us built. Exc.Japan Built. Engine # axxxxxx-gxxxxxx. Engine # dxxxxxx-gxxxxxx. Engine # axxxxxx-lxxxxxx.... More Info
Fits:
  • Toyota:
    • Avalon,
    • Camry,
    • Highlander,
    • RAV4,
    • Sienna,
    • Venza
  • 1 more
$2.33
$1.68
$2.33
$1.68
Thermostat
Part Number: 90916-03083
Other Names: More Names
Replaces: 90916-03016, 90916-03028, 90916-03033, 90916-03034, 90916-03035, 90916-03037, 90916-03037-72, 90916-03054, 90916-03056
Description: Gas. With turbo. Pick-up, 4-runner. More Info
Fits:
  • Toyota:
    • Pickup
$28.52
$20.58
$28.52
$20.58
Thermostat
Part Number: 90916-03107
Other Names: More Names
Description: Corolla. More Info
Fits:
  • Toyota:
    • Corolla
$35.49
$25.18
$35.49
$25.18

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