How to service the thermostat on 2003 Toyota Sequoia?

To service the thermostat, drain the coolant, disassemble the water inlet and take out the thermostat and gasket. Check the thermostat in hot water; change if does not open between 80-84°C or is not within valve lift requirements. Install a new gasket, tighten the nuts, refill the coolant and look at the leak.

OEM 2003 Toyota Sequoia Thermostat

Engine Coolant Thermostat

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2003 Toyota Sequoia Thermostat
Part Number: 90916-03100
$26.40 MSRP: $36.75
You Save: $10.35 (29%)
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Product Specifications
- Other Name: Engine Coolant Thermostat
- Manufacturer Note: *WAX 82-95
- Part Name Code: 16331A
- Item Weight: 0.70 Pounds
- Item Dimensions: 2.8 x 2.7 x 2.6 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 90916-03100
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
More Info
Fits the following 2003 Toyota Sequoia Submodels:
- Limited, SR5 | 8 Cyl 4.7 L GAS

2003 Toyota Sequoia Thermostat

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2003 Toyota Sequoia Thermostat Parts Q&A

Q: How to service the thermostat on 2003 Toyota Sequoia?
A: To service the thermostat, drain the coolant, disassemble the water inlet and take out the thermostat and gasket. Check the thermostat in hot water; change if does not open between 80-84°C or is not within valve lift requirements. Install a new gasket, tighten the nuts, refill the coolant and look at the leak.

Related 2003 Toyota Sequoia Parts

Alternate Year Models

2002 Toyota Sequoia Thermostat 2004 Toyota Sequoia Thermostat