How to replace the thermostat on Scion tC?

To install a thermostat (2AZ-FE) drain coolant, remove water inlet, and displace old thermostat. The new one can be installed with a gasket, with the jiggle valve upwards. Connect the water inlet, tighten to 9.0 Nm and add coolant and verify leaks.

How to remove the thermostat on Scion xB?

In order to remove the thermostat, begin by removing the No. 1 engine under cover.Empty the engine coolant, and separate the outlet radiator hose.Then drain the inlet water by untightening the two nuts and loosening it up.Lastly, remove the thermostat and the gasket.

OEM Scion Thermostat

Engine Coolant Thermostat

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10 Thermostats found

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Scion Water Inlet
Part Number: 90916-A3003
$22.69 MSRP: $31.59
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Product Specifications
- Other Name: Thermostat; Engine Coolant Thermostat; Thermostat, Coolant
- Replaces: 90916-03129, 90916-03084
Fits the following Scion Models:
- tC | 2011-2016, 2005 | Base | 4 Cyl 2.4 L GAS, 4 Cyl 2.5 L GAS
- xD | 2008-2010 | Base | 4 Cyl 1.8 L GAS
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Scion Thermostat
Part Number: 90916-03145
$22.69 MSRP: $31.59
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Product Specifications
- Other Name: Engine Coolant Thermostat; Thermostat, Coolant
- Manufacturer Note: *WAX 82-95,TYPE C:REFER ILLUST.
Fits the following Scion Models:
- xD | 2011-2014 | Base | 4 Cyl 1.8 L GAS
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Scion Thermostat, Lower
Part Number: SU003-04960
$30.19 MSRP: $39.07
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Product Specifications
- Other Name: Thermo&Gasket Assembly; Engine Coolant Thermostat, Lower; Engine Coolant Thermostat
- Position: Lower
- Replaces: SU003-00407
Fits the following Scion Models:
- FR-S | 2013-2016 | Base | 4 Cyl 2.0 L GAS
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Scion Thermostat
Part Number: 90916-03144
$22.69 MSRP: $31.59
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Product Specifications
- Other Name: Engine Coolant Thermostat; Thermostat, Coolant
Fits the following Scion Models:
- xD | 2009-2014 | Base | 4 Cyl 1.8 L GAS
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Scion Thermostat
Part Number: 90916-03136
$28.19 MSRP: $39.24
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Product Specifications
- Other Name: Engine Coolant Thermostat
- Replaces: 90916-C3001
Fits the following Scion Models:
- tC | 2005-2010 | Base, Spec | 4 Cyl 2.4 L GAS
- xB | 2008-2015 | Base | 4 Cyl 2.4 L GAS
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Scion Thermostat
Part Number: 90916-03093
$22.57 MSRP: $31.42
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Product Specifications
- Other Name: Engine Coolant Thermostat; Thermostat, Coolant
- Manufacturer Note: *WAX 82-95
Fits the following Scion Models:
- xA | 2004-2006 | Base | 4 Cyl 1.5 L GAS
- xB | 2004-2006 | Base | 4 Cyl 1.5 L GAS
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Scion Thermostat
Part Number: SU003-11169
$35.73 MSRP: $49.74
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Product Specifications
- Other Name: Thermo&Gasket Assembly; Standard Parts
Fits the following Scion Models:
- FR-S | 2013-2016 | Base | 4 Cyl 2.0 L GAS
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Scion Thermostat
Part Number: 90916-A3004
$27.95 MSRP: $38.90
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Product Specifications
- Other Name: Engine Coolant Thermostat
- Replaces: 90916-03149, 90916-03148
Fits the following Scion Models:
- iM | 2016 | Base | 4 Cyl 1.8 L GAS
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Scion Thermostat
Part Number: 90916-03147
$24.61 MSRP: $34.24
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Product Specifications
- Other Name: Thermostat, Element; Engine Coolant Thermostat
- Manufacturer Note: *WAX 82-95
Fits the following Scion Models:
- iQ | 2012-2015 | Base | 4 Cyl 1.3 L GAS
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Scion Thermostat
Part Number: 90118-WB459
$20.92 MSRP: $29.12
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Product Specifications
- Other Name: Engine Coolant Thermostat
Fits the following Scion Models:
- iA | 2016 | Base | 4 Cyl 1.5 L GAS

Scion Thermostat Parts and Q&A

Water Inlet
90916-A3003
Q: How to replace the thermostat on Scion tC?
A: To install a thermostat (2AZ-FE) drain coolant, remove water inlet, and displace old thermostat. The new one can be installed with a gasket, with the jiggle valve upwards. Connect the water inlet, tighten to 9.0 Nm and add coolant and verify leaks.
Thermostat
90916-03136
Q: How to remove the thermostat on Scion xB?
A: In order to remove the thermostat, begin by removing the No. 1 engine under cover.Empty the engine coolant, and separate the outlet radiator hose.Then drain the inlet water by untightening the two nuts and loosening it up.Lastly, remove the thermostat and the gasket.

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