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: 32971-45010
Other Names: Thermostat Transmission More Names
Description: 3.5 LITER, 2017-20 More Info
Fits:
  • Toyota:
    • Sienna
$159.84
$109.54
$159.84
$109.54
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 Gasket
Part Number: 16325-0T030
Other Names: Thermostat Seal, Thermostat Housing Seal, Gasket, Water Inlet Gasket, Thermostat Housing Gasket, Gasket Water Inlet More Names
Replaces: 16325-0H030, 16325-28010
Description: TC 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 Gasket
Part Number: 16341-35010
Other Names: Water Inlet Gasket, Engine Coolant Thermostat Gasket, Gasket Water Outlet More Names
Replaces: 16341-65010
Description: ALL MODELS More Info
Fits:
  • Toyota:
    • 4Runner,
    • Celica,
    • Cressida,
    • Pickup,
    • Supra,
    • T100
  • 1 more
$3.16
$2.28
$3.16
$2.28
Thermostat Unit
Part Number: 32971-34030
Other Names: Thermostat Transmission More Names
Description: 4.6 LITER, W/TOWING PACKAGE More Info
Fits:
  • Toyota:
    • Tundra
$159.84
$109.54
$159.84
$109.54
Thermostat Housing
Part Number: 16321-0F010
Other Names: Water Inlet, Thermostat Cover, Housing, Inlet Tube, Inlet Water More Names
Replaces: 16321-50020
Description: 4.7 LITER More Info
Fits:
  • Toyota:
    • 4Runner,
    • Land Cruiser,
    • Sequoia,
    • Tundra
$68.24
$46.98
$68.24
$46.98
Thermostat Gasket
Part Number: 16325-36010
Other Names: Thermostat Unit Seal, Water Inlet Seal, Gasket Water Inlet More Names
Description: CAMRY HYBRID 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 More Info
Notes: Included With Thermostat Housing. Included With Water Inlet. More Notes
Fits:
  • Toyota:
    • Prius,
    • Prius AWD-e,
    • Prius Plug-In,
    • Prius Prime,
    • Prius V
$5.40
$3.90
$5.40
$3.90
Thermostat Gasket
Part Number: 16346-50010
Other Names: Gasket, Gasket Thermostat More Names
Description: TUNDRA More Info
Fits:
  • Toyota:
    • 4Runner,
    • Land Cruiser,
    • Sequoia,
    • Tundra
$5.52
$3.98
$5.52
$3.98
Engine Coolant Thermostat
Part Number: 90916-03075
Other Names: Thermostat More Names
Description: T100; 6 CYLINDER More Info
Fits:
  • Toyota:
    • 4Runner,
    • Camry,
    • Celica,
    • MR2,
    • T100,
    • Tacoma,
    • Tundra
  • 2 more
$31.21
$22.15
$31.21
$22.15
Thermostat Housing Seal
Part Number: 16325-0P020
Other Names: Thermostat Housing Gasket, Housing Gasket, Gasket Water Inlet More Names
Description: 3.5 LITER More Info
Fits:
  • Toyota:
    • Avalon,
    • Camry,
    • Highlander,
    • RAV4,
    • Sienna,
    • Venza
  • 1 more
$2.33
$1.68
$2.33
$1.68
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
Thermostat Housing Gasket
Part Number: 16325-31010
Other Names: Housing Gasket, Thermostat Gasket, Thermostat Housing Seal, Gasket Water Inlet More Names
Description: 3.5 LITER, JAPAN BUILT 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
Thermostat O-Ring
Part Number: 16325-76010
Other Names: Gasket, Thermostat Gasket, Gasket Water Inlet More Names
Replaces: 16325-0C030
Description: TACOMA More Info
Fits:
  • Toyota:
    • 4Runner,
    • Previa,
    • T100,
    • Tacoma
$6.64
$4.79
$6.64
$4.79
Engine Coolant Thermostat
Part Number: 90916-03079
Other Names: Thermostat More Names
Description: PICK-UP, 4-RUNNER; GAS; W/O TURBO; 6 CYLINDER More Info
Fits:
  • Toyota:
    • 4Runner,
    • Pickup,
    • T100
$35.49
$25.18
$35.49
$25.18
Engine Coolant Thermostat
Part Number: 90916-03090
Other Names: Thermostat More Names
Replaces: 90916-03060
Description: CELICA; GT; FROM 3/96 More Info
Fits:
  • Toyota:
    • Camry,
    • Celica,
    • Corolla,
    • MR2,
    • RAV4,
    • Solara
  • 1 more
$31.52
$22.36
$31.52
$22.36
Inlet Sub Assembly Wate
Part Number: 16031-25011
Other Names: Thermostat, Water Inlet, Thermostat Housing, Thermostat Unit, Inlet Sub-Assembly Wate More Names
Replaces: 16031-25010
Description: Camry. 2.5L, with thermostat. Us built, thermostat & hoses. Japan built, thermostat & hoses. Without hybrid, reservoir & hoses.... More Info
Notes: Includes Thermostat. Includes Gasket. More Notes
$61.06
$42.03
$61.06
$42.03
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 Gasket
Part Number: 16325-62010
Other Names: Thermostat Gasket, Water Inlet Gasket, Gasket, Thermostat Seal, Water Inlet Seal, Thermostat Housing Gasket, Engine Coolant Water... More Names
Replaces: 16325-0H020
Description: 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
Thermostat Housing O-Ring
Part Number: 16326-47020
Other Names: Engine Coolant Thermostat Gasket, Gasket Water Inlet More Names
Replaces: 16326-47010
Description: W/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
Engine Coolant Thermostat Housing
Part Number: 16031-24010
Other Names: Thermostat Housing, Water Inlet, Inlet Sub-Assembly Wate More Names
Description: Corolla hatchback. More Info
Notes: Includes Thermostat. More Notes
Fits:
  • Toyota:
    • Corolla
$95.62
$65.83
$95.62
$65.83
Thermostat
Part Number: 90916-03100
Description: TUNDRA More Info
Fits:
  • Toyota:
    • 4Runner,
    • Land Cruiser,
    • Sequoia,
    • Tundra
$28.60
$20.64
$28.60
$20.64
Thermostat
Part Number: 90916-03115
Replaces: 90916-03109
Description: CELICA; ST More Info
Fits:
  • Toyota:
    • Celica
$35.49
$25.18
$35.49
$25.18
Thermostat
Part Number: 90916-03117
Replaces: 90916-03094
Description: LAND CRUISER More Info
Fits:
  • Toyota:
    • Land Cruiser
$31.52
$22.36
$31.52
$22.36
Thermostat
Part Number: 90916-03120
Replaces: 90916-03088, 90916-03101
Description: T100; 4 CYLINDER More Info
Fits:
  • Toyota:
    • 4Runner,
    • Previa,
    • T100,
    • Tacoma
$35.80
$25.39
$35.80
$25.39
Thermostat
Part Number: 90916-03052
Replaces: 90916-03071
Description: LAND CRUISER More Info
Fits:
  • Toyota:
    • Land Cruiser
$58.76
$40.45
$58.76
$40.45
Thermostat
Part Number: 90916-03125
Fits:
  • Toyota:
    • Celica,
    • Corolla,
    • MR2 Spyder
$28.55
$20.59
$28.55
$20.59
Thermostat
Part Number: 90916-03136
Replaces: 90916-C3001
Description: TC More Info
Fits:
  • Scion:
    • tC,
    • xB
  • Toyota:
    • Camry,
    • Corolla,
    • Highlander,
    • Matrix,
    • RAV4,
    • Solara
  • 3 more
$28.52
$20.58
$28.52
$20.58
Thermostat
Part Number: 90916-03144
Description: XD More Info
Notes: Order By Description. More Notes
Fits:
  • Scion:
    • xD
  • Toyota:
    • Corolla,
    • Matrix
$28.49
$20.56
$28.49
$20.56
Thermostat
Part Number: 90118-WB459
Description: IA More Info
Fits:
  • Scion:
    • iA
  • Toyota:
    • Yaris,
    • Yaris iA
$23.71
$17.11
$23.71
$17.11
Thermostat
Part Number: 90916-03099
Replaces: 90916-03043, 90916-03062, 90916-03072
Description: PICK-UP, 4-RUNNER; DIESEL More Info
Fits:
  • Toyota:
    • Pickup
$28.60
$20.64
$28.60
$20.64
Thermostat
Part Number: 90916-03145
Description: AUTO TRANS More Info
Notes: Order By Description. More Notes
Fits:
  • Scion:
    • xD
  • Toyota:
    • Corolla,
    • Matrix
$28.49
$20.56
$28.49
$20.56
Thermostat
Part Number: SU003-00408
Positions: Upper
Other Names: Thermo Gasket Ay More Names
Description: FR-S; NO.2 (AT REAR OF ENGINE) More Info
Notes: Includes Gasket. More Notes
Fits:
  • Scion:
    • FR-S
  • Toyota:
    • 86
$39.07
$29.81
$39.07
$29.81
Thermostat
Part Number: 90916-03046
Replaces: 90916-03069
Description: COROLLA More Info
Fits:
  • Toyota:
    • Camry,
    • Celica,
    • Corolla,
    • MR2,
    • Paseo,
    • RAV4,
    • Tercel,
    • Van
  • 3 more
$28.69
$20.70
$28.69
$20.70
Thermostat
Part Number: 90916-03078
Replaces: 90916-03022, 90916-03023, 90916-03029, 90916-03036, 90916-03040, 90916-03055
Description: SUPRA; ALL More Info
Fits:
  • Toyota:
    • 4Runner,
    • Celica,
    • Corolla,
    • Cressida,
    • Pickup,
    • Starlet,
    • Supra
  • 2 more
$28.52
$20.58
$28.52
$20.58
Thermostat
Part Number: 90916-03083
Replaces: 90916-03016, 90916-03028, 90916-03033, 90916-03034, 90916-03035, 90916-03037, 90916-03037-72, 90916-03054, 90916-03056
Description: PICK-UP, 4-RUNNER; GAS; W/TURBO More Info
Fits:
  • Toyota:
    • Pickup
$28.52
$20.58
$28.52
$20.58
Thermostat
Part Number: 90916-03093
Description: XA More Info
Fits:
  • Scion:
    • xA,
    • xB
  • Toyota:
    • 4Runner,
    • Echo,
    • Prius,
    • Supra,
    • Tacoma,
    • Yaris
  • 3 more
$28.69
$20.70
$28.69
$20.70
Thermostat
Part Number: 90916-03107
Description: COROLLA More Info
Fits:
  • Toyota:
    • Corolla
$35.49
$25.18
$35.49
$25.18
Thermostat
Part Number: 90916-03138
Description: Sequoia. Tundra. 4.7L. 4-runner. 8 cylinder. More Info
Fits:
  • Toyota:
    • 4Runner,
    • Land Cruiser,
    • Sequoia,
    • Tundra
$48.96
$34.73
$48.96
$34.73
Thermostat
Part Number: 90916-03157
Description: TACOMA More Info
Fits:
  • Toyota:
    • Tacoma
$28.38
$20.47
$28.38
$20.47
Thermostat
Part Number: 90916-A3002
Replaces: 90916-03133, 90916-03140, 90916-A3001
Description: CAMRY More Info
Notes: Order By Description. More Notes
Fits:
  • Toyota:
    • Avalon,
    • Camry,
    • Corolla,
    • Highlander,
    • Matrix,
    • RAV4,
    • Sienna,
    • Venza
  • 3 more
$28.52
$20.58
$28.52
$20.58
Thermostat
Part Number: 90916-A3003
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. 2008-10. 3.0 &... 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
Part Number: 90916-A3004
Replaces: 90916-03148, 90916-03149
Description: IM More Info
Fits:
  • Scion:
    • iM
  • Toyota:
    • C-HR,
    • Corolla,
    • Corolla iM,
    • RAV4
$28.38
$20.47
$28.38
$20.47
Thermostat
Part Number: SU003-04960
Positions: Lower
Other Names: Thermo Gasket Ay More Names
Replaces: SU003-00407
Description: FR-S; NO.1 (AT WATER PUMP) More Info
Notes: Includes Gasket. More Notes
Fits:
  • Scion:
    • FR-S
  • Toyota:
    • 86
$39.07
$29.81
$39.07
$29.81
Thermostat Housing
Part Number: 16321-10011
Other Names: Inlet Water More Names
Description: PASEO; MANUAL TRANS More Info
Fits:
  • Toyota:
    • Paseo,
    • Tercel
$55.80
$38.41
$55.80
$38.41
Thermostat Housing
Part Number: 16321-15040
Other Names: Inlet, Inlet Water More Names
Description: Corolla. Celica. St. 1.8L. Coupe. Without gts. Without turbo. More Info
Fits:
  • Toyota:
    • Celica,
    • Corolla
$39.59
$28.08
$39.59
$28.08
Thermostat Housing
Part Number: 16321-20030
Other Names: Water Inlet, Cover, Inlet Water More Names
Replaces: 16321-0A030
Description: CAMRY; 3.0L, 3.3L More Info
Fits:
  • Toyota:
    • Avalon,
    • Camry,
    • Highlander,
    • Sienna,
    • Solara
$70.48
$48.51
$70.48
$48.51
Thermostat Housing
Part Number: 16321-28010
Other Names: Water Inlet Tube, Inlet Water More Names
Description: TC More Info
Fits:
  • Scion:
    • tC
  • Toyota:
    • RAV4
$50.51
$34.77
$50.51
$34.77
Thermostat Housing
Part Number: 16321-62010
Other Names: Housing, Inlet Water More Names
Description: CAMRY; GAS; 6 CYLINDER More Info
Fits:
  • Toyota:
    • Camry
$55.80
$38.41
$55.80
$38.41
Thermostat Housing
Part Number: 16321-66011
Other Names: Inlet Water More Names
Replaces: 16321-66010
Description: LAND CRUISER More Info
Fits:
  • Toyota:
    • Land Cruiser
$76.51
$52.67
$76.51
$52.67

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