How do you replace the thermostat in a four-cylinder engine for Pontiac Firebird?

To replace the thermostat, undo the water outlet housing as well as the thermostat, and clean the gasket sealing surfaces. Reconnect the radiator hose, and refill the cooling system with an antifreeze/water mix. Finally, reattach the battery cable, start the engine, and add coolant until the radiator is filled, then seal with the cap.

How to replace the thermostat in V6 and V8 engines for Pontiac Firebird?

Disconnect the negative battery terminal and remove the air cleaner on V6 and V8 engines, labeling all detached hoses. Drain the cooling system below the thermostat level and disconnect the upper radiator hose. Remove the thermostat housing bolts and separate the housing from the engine, possibly removing the alternator bracket first. If a TVS switch is present, disconnect vacuum hoses and unscrew the switch. Remove the thermostat, noting its orientation. Clean old gasket residue from the thermostat housing and engine sealing surface. Apply a 1/8-inch bead of RTV sealant to the engine's sealing surface, place the thermostat, and position the housing with sealant and a new gasket. Tighten the bolts to the specified torque. Reinstall any removed parts, reconnect the upper radiator hose, and reinstall the air cleaner.

Genuine Pontiac Firebird Thermostat

Engine Coolant Thermostat

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11 Thermostats found

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Pontiac Firebird Thermostat Assembly, Engine Coolant (W/ Gasket)
Part Number: 24505924
$18.12 MSRP: $36.78
You Save: $18.66 (51%)
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Product Specifications
- Other Name: THERMOSTAT, Engine Coolant Temperature; Thermostat, Thermostat Unit
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1998-2002 Pontiac Firebird | 2 DOOR, CONVERTIBLE, COUPE | 6 Cyl 3.8L
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Pontiac Firebird Thermostat,Engine Coolant
Part Number: 12555290
$34.46 MSRP: $69.94
You Save: $35.48 (51%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: THERMOSTAT, Engine Coolant Temperature; Thermostat
- Replaces: 10128336, 10223370
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1993-1997 Pontiac Firebird | 2 DOOR, CONVERTIBLE | 8 Cyl 5.7L
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Pontiac Firebird Thermostat,Engine Coolant
Part Number: 10190925
$13.67 MSRP: $25.80
You Save: $12.13 (48%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: THERMOSTAT, Engine Coolant Temperature; Thermostat
- Replaces: 10190927, 10147886
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1990-1992 Pontiac Firebird | 2 DOOR, CONVERTIBLE | 8 Cyl 5.0L
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Pontiac Firebird Thermostat,Engine Coolant(W/Gasket)
Part Number: 24506986
$16.81 MSRP: $31.72
You Save: $14.91 (48%)
Ships in 1 Business Day
ADD TO CART
Product Specifications
- Other Name: THERMOSTAT, Engine Coolant Temperature; Thermostat, Thermostat Unit
- Replaces: 3037747, 24500253, 03037747, 10207375
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1995-1997 Pontiac Firebird | 2 DOOR, CONVERTIBLE | 6 Cyl 3.8L
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Pontiac Firebird Thermostat,Engine Coolant
Part Number: 24577299
$16.68 MSRP: $29.91
You Save: $13.23 (45%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: THERMOSTAT, Engine Coolant Temperature; Intake Manifold, Thermostat, Thermostat Unit
- Replaces: 24576634, 10182377, 24577130
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1985-1995 Pontiac Firebird | 2 DOOR, CONVERTIBLE | 6 Cyl 2.8L, 6 Cyl 3.1L, 6 Cyl 3.4L
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Pontiac Firebird Thermostat,Engine Coolant
Part Number: 12514334
$12.91 MSRP: $23.16
You Save: $10.25 (45%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: THERMOSTAT, Engine Coolant Temperature; Thermostat
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1982-1992 Pontiac Firebird | 2 DOOR, CONVERTIBLE | 4 Cyl 2.5L, 6 Cyl 2.8L, 8 Cyl 5.0L, 8 Cyl 5.7L
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Pontiac Firebird Thermostat,Engine Coolant
Part Number: 10207373
$10.85 MSRP: $19.72
You Save: $8.87 (45%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: THERMOSTAT, Engine Coolant Temperature; Thermostat
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1987-1992 Pontiac Firebird | 2 DOOR, CONVERTIBLE | 8 Cyl 5.0L, 8 Cyl 5.7L
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Pontiac Firebird Thermostat Asm
Part Number: 3043066
Product Specifications
- Other Name: THERMOSTAT, Engine Coolant Temperature; Thermostat
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1982-1989 Pontiac Firebird | 2 DOOR | 6 Cyl 2.8L
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Pontiac Firebird Thermostat Asm,Engine Coolant
Part Number: 3050922
Product Specifications
- Other Name: THERMOSTAT, Engine Coolant Temperature; Thermostat
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1982-1986 Pontiac Firebird | 2 DOOR | 4 Cyl 2.5L
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Pontiac Firebird Thermostat Asm,Engine Coolant
Part Number: 12353872
Product Specifications
- Other Name: THERMOSTAT, Engine Coolant Temperature
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1989 Pontiac Firebird | 2 DOOR | 6 Cyl 3.8L
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Pontiac Firebird Housing,Engine Coolant Thermostat
Part Number: 10019090
Product Specifications
- Other Name: HOUSING, Engine Coolant Thermostat; Thermostat Housing
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1982-1986 Pontiac Firebird | 2 DOOR | 4 Cyl 2.5L

Pontiac Firebird Thermostat Parts Questions & Experts Answers

Thermostat,Engine Coolant
12514334
Q: How do you replace the thermostat in a four-cylinder engine for Pontiac Firebird?
A: To replace the thermostat, undo the water outlet housing as well as the thermostat, and clean the gasket sealing surfaces. Reconnect the radiator hose, and refill the cooling system with an antifreeze/water mix. Finally, reattach the battery cable, start the engine, and add coolant until the radiator is filled, then seal with the cap.
Thermostat,Engine Coolant
10190925
Q: How to replace the thermostat in V6 and V8 engines for Pontiac Firebird?
A: Disconnect the negative battery terminal and remove the air cleaner on V6 and V8 engines, labeling all detached hoses. Drain the cooling system below the thermostat level and disconnect the upper radiator hose. Remove the thermostat housing bolts and separate the housing from the engine, possibly removing the alternator bracket first. If a TVS switch is present, disconnect vacuum hoses and unscrew the switch. Remove the thermostat, noting its orientation. Clean old gasket residue from the thermostat housing and engine sealing surface. Apply a 1/8-inch bead of RTV sealant to the engine's sealing surface, place the thermostat, and position the housing with sealant and a new gasket. Tighten the bolts to the specified torque. Reinstall any removed parts, reconnect the upper radiator hose, and reinstall the air cleaner.