How to test and replace a thermostat in a cooling system on Toyota Sienna?

First of all, you need to check the coolant level, drive belt tension, and temperature gauge operation before servicing the thermostat. To replace it, disconnect the negative cable from the battery, drain the coolant from the radiator, and remove the necessary components to access the thermostat housing. Installation for the remaining components is the reverse of the removal.

Genuine Toyota Sienna Thermostat

Engine Coolant Thermostat

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7 Thermostats found

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Toyota Sienna Thermostat
Part Number: 90916-A3003
$21.92 MSRP: $30.63
You Save: $8.71 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Replaces: 90916-03129, 90916-03084
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2011-2014 Toyota Sienna | LE | 4 Cyl 2.7L | 1ARFE; 1ARFE; ASL30L-PFTEKA, ASL30L-PRTEKA
- 1998-2007 Toyota Sienna | CE, LE, XLE | 6 Cyl 3.0L, 6 Cyl 3.3L | 1MZFE, 3MZFE; 1MZFE, 3MZFE; MCL10L-GFSDKA, 3MZFE; MCL20L-PFADKK, MCL10L-GFSDKK, MCL10L-GFSGKA, MCL10L-GFSGKK, MCL10L-PFSDKA, MCL10L-PFSDKK, MCL10L-PFSGKA, MCL10L-PFSGKK, MCL10L-SESDKA, MCL10L-SESDKK, MCL20L-PFADKK, MCL20L-PFAEKA, MCL20L-PFAEKK, MCL20L-PFAQKA, MCL20L-PFAQKK, MCL20L-PRADKK, MCL20L-PRAEKA, MCL20L-PRAEKK, MCL20L-PRAQKA, MCL20L-PRAQKK, MCL23L-SBADKA, MCL23L-SBADKK, MCL25L-PFADKK, MCL25L-PFAEKA, MCL25L-PFAEKK, MCL25L-PFAQKA, MCL25L-PFAQKK
View related parts
Toyota Sienna Thermostat
Part Number: 90916-03084
$21.92 MSRP: $30.63
You Save: $8.71 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Replaced by: 90916-A3003
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1998-2005 Toyota Sienna | CE, LE, XLE | 6 Cyl 3.0L, 6 Cyl 3.3L | 1MZFE, 3MZFE; 1MZFE, 3MZFE; MCL10L-GFSDKA, MCL10L-GFSDKK, MCL10L-GFSGKA, MCL10L-GFSGKK, MCL10L-PFSDKA, MCL10L-PFSDKK, MCL10L-PFSGKA, MCL10L-PFSGKK, MCL10L-SESDKA, MCL10L-SESDKK, MCL20L-PFADKK, MCL20L-PFAEKA, MCL20L-PFAEKK, MCL20L-PFAQKA, MCL20L-PFAQKK, MCL20L-PRADKK, MCL20L-PRAEKA, MCL20L-PRAEKK, MCL20L-PRAQKA, MCL20L-PRAQKK, MCL23L-SBADKA, MCL23L-SBADKK, MCL25L-PFADKK, MCL25L-PFAEKA, MCL25L-PFAEKK, MCL25L-PFAQKA, MCL25L-PFAQKK
View related parts
Toyota Sienna Thermostat
Part Number: 90916-03129
$21.92 MSRP: $30.63
You Save: $8.71 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Replaced by: 90916-A3003
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2011-2014 Toyota Sienna | LE | 4 Cyl 2.7L | 1ARFE; 1ARFE; ASL30L-PFTEKA, ASL30L-PRTEKA
- 2004-2007 Toyota Sienna | CE, LE, XLE | 6 Cyl 3.3L | 3MZFE; 3MZFE; MCL20L-PFADKK, MCL20L-PFAEKA, MCL20L-PFAEKK, MCL20L-PFAQKA, MCL20L-PFAQKK, MCL20L-PRADKK, MCL20L-PRAEKA, MCL20L-PRAEKK, MCL20L-PRAQKA, MCL20L-PRAQKK, MCL23L-SBADKA, MCL23L-SBADKK, MCL25L-PFADKK, MCL25L-PFAEKA, MCL25L-PFAEKK, MCL25L-PFAQKA, MCL25L-PFAQKK
View related parts
Toyota Sienna Thermostat
Part Number: 90916-A3002
$22.12 MSRP: $30.93
You Save: $8.81 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Replaces: 90916-A3001, 90916-03140, 90916-03133
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2006-2017 Toyota Sienna | CE, LE, SE, STD, XLE | 6 Cyl 3.5L | 2GRFE; 2GRFE; GSL20L-PFADKK, GSL20L-PFAEKA, GSL20L-PFAEKK, GSL20L-PFAQKA, GSL20L-PFAQKK, GSL20L-PRADKK, GSL20L-PRAEKA, GSL20L-PRAEKK, GSL20L-PRAQKA, GSL20L-PRAQKK, GSL23L-SBADKA, GSL23L-SBADKK, GSL25L-PFADKK, GSL25L-PFAEKA, GSL25L-PFAEKK, GSL25L-PFAQKA, GSL25L-PFAQKK, GSL30L-PFTDKA, GSL30L-PFTEKA, GSL30L-PFTQKA, GSL30L-PRTEKA, GSL30L-PRTQKA, GSL30L-PRTSKA, GSL33L-SBTDKA, GSL35L-PFTDKA, GSL35L-PFTEKA, GSL35L-PFTQKA
View related parts
Toyota Sienna Thermostat
Part Number: 90916-03140
$22.12 MSRP: $30.93
You Save: $8.81 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Replaced by: 90916-A3002
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2007-2017 Toyota Sienna | CE, LE, SE, STD, XLE | 6 Cyl 3.5L | 2GRFE; 2GRFE; GSL20L-PFADKK, GSL20L-PFAEKA, GSL20L-PFAEKK, GSL20L-PFAQKA, GSL20L-PFAQKK, GSL20L-PRADKK, GSL20L-PRAEKA, GSL20L-PRAEKK, GSL20L-PRAQKA, GSL20L-PRAQKK, GSL23L-SBADKA, GSL23L-SBADKK, GSL25L-PFADKK, GSL25L-PFAEKA, GSL25L-PFAEKK, GSL25L-PFAQKA, GSL25L-PFAQKK, GSL30L-PFTDKA, GSL30L-PFTEKA, GSL30L-PFTQKA, GSL30L-PRTEKA, GSL30L-PRTQKA, GSL30L-PRTSKA, GSL33L-SBTDKA, GSL35L-PFTDKA, GSL35L-PFTEKA, GSL35L-PFTQKA
View related parts
Toyota Sienna Thermostat
Part Number: 90916-03133
$22.12 MSRP: $30.93
You Save: $8.81 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Replaced by: 90916-A3002
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2006-2008 Toyota Sienna | CE, LE, XLE | 6 Cyl 3.5L | 2GRFE; 2GRFE; GSL20L-PFADKK, GSL20L-PFAEKA, GSL20L-PFAEKK, GSL20L-PFAQKA, GSL20L-PFAQKK, GSL20L-PRADKK, GSL20L-PRAEKA, GSL20L-PRAEKK, GSL20L-PRAQKA, GSL20L-PRAQKK, GSL23L-SBADKA, GSL23L-SBADKK, GSL25L-PFADKK, GSL25L-PFAEKA, GSL25L-PFAEKK, GSL25L-PFAQKA, GSL25L-PFAQKK
View related parts
Toyota Sienna Thermostat
Part Number: 90916-A3001
$22.12 MSRP: $30.93
You Save: $8.81 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Manufacturer Note: *WAX 82-95,(L)
- Replaced by: 90916-A3002
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2006-2008 Toyota Sienna | CE, LE, XLE | 6 Cyl 3.5L | 2GRFE; 2GRFE; GSL20L-PFADKK, GSL20L-PFAEKA, GSL20L-PFAEKK, GSL20L-PFAQKA, GSL20L-PFAQKK, GSL20L-PRADKK, GSL20L-PRAEKA, GSL20L-PRAEKK, GSL20L-PRAQKA, GSL20L-PRAQKK, GSL23L-SBADKA, GSL23L-SBADKK, GSL25L-PFADKK, GSL25L-PFAEKA, GSL25L-PFAEKK, GSL25L-PFAQKA, GSL25L-PFAQKK

Toyota Sienna Thermostat

The Toyota Sienna Thermostat is an important part of the vehicle's cooling system commonly located close to the radiator. One of its major uses is to keep the temperature of the engine within the optimal operating temperature. Thermostats are control devices that function as feedback systems for regulating temperature with dead band control; they are used in homes and industries. Various models of the thermostats including the mechanical and the pneumatic types have been used at some times with improvements like the wax pellet thermostats and the pneumatic digital interfaces improving the efficiencies and comfort of the Toyota Sienna car in temperature management.

If you are in demand for superior quality and affordable OEM Toyota Sienna Thermostat, then shop with us! We own a wide range of the reduced-priced genuine Toyota Sienna Thermostat. You can purchase in confidence as all parts come with a manufacturer's warranty. Any issues with our products? No need to worry as we have a hassle-free return policy to guide you every step of the way.

Toyota Sienna Thermostat Parts Questions & Experts Answers

Thermostat
90916-03133
Q: How to test and replace a thermostat in a cooling system on Toyota Sienna?
A: First of all, you need to check the coolant level, drive belt tension, and temperature gauge operation before servicing the thermostat. To replace it, disconnect the negative cable from the battery, drain the coolant from the radiator, and remove the necessary components to access the thermostat housing. Installation for the remaining components is the reverse of the removal.