How to replace the thermostat in a cylinder head for Buick Century and Regal?

Remove any gasket or sealer with the thermostat from the cylinder head. Unbolt the water neck by draining the coolant system below the thermostat level when trying to replace it. The next step is to remove the water neck and thereby expose the thermostat. Thereafter, clean off all traces of remnants from both manifold and residual gasket material or sealer on water necks that mate. Installing it with its wax pellet downwards is a good idea. Besides, apply some sealant on both sides of the gasket then put it on block. Finally, hold it down using retainer bolts.

Genuine Buick Regal Thermostat

Engine Coolant Thermostat

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11 Thermostats found

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Buick Regal Thermostat Assembly, Engine Coolant
Part Number: 12622410
$77.07 MSRP: $156.38
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Product Specifications
- Other Name: THERMOSTAT, Engine Coolant Temperature; Thermostat
- Replaces: 21018811, 55350941, 90537453, 12615097
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2011-2017 Buick Regal | CX 4 DOOR SEDAN, CXL 4 DOOR SEDAN, CXL TURBO 4 DOOR SEDAN, CXS 4 DOOR SEDAN | 4 Cyl 2.0L, 4 Cyl 2.4L
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Buick Regal Thermostat,Engine Coolant
Part Number: 24507563
$12.07 MSRP: $37.96
You Save: $25.89 (69%)
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Product Specifications
- Other Name: THERMOSTAT, Engine Coolant Temperature; Thermostat
- Replaced by: 19435095
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1988-2004 Buick Regal | 2 DOOR, 4 DOOR, CUSTOM, CUSTOM 2 DOOR, CUSTOM 4 DOOR, GL, GLX, GRAN SPORT 2 DOOR, GRAN SPORT 4 DOOR, GS, LIMITED, LIMITED 2 DOOR, LIMITED 4 DOOR, LS, REGAL | 6 Cyl 2.8L, 6 Cyl 3.1L
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Buick Regal 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:
- 1998-2004 Buick Regal | CUSTOM, GL, GLX, GS, LIMITED, LS | 6 Cyl 3.8L
- 1990-1991 Buick Regal | 2 DOOR, 4 DOOR, CUSTOM 2 DOOR, CUSTOM 4 DOOR, LIMITED, LIMITED 2 DOOR, LIMITED 4 DOOR | 6 Cyl 3.8L
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Buick Regal Housing Assembly, Engine Coolant Thermostat
Part Number: 12597172
$91.52 MSRP: $192.27
You Save: $100.75 (53%)
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Product Specifications
- Other Name: HOUSING, Engine Coolant Thermostat; Thermostat Housing, Water Manifold
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2011-2017 Buick Regal | CX 4 DOOR SEDAN, CXL 4 DOOR SEDAN | 4 Cyl 2.4L
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Buick Regal Thermostat,Engine Coolant
Part Number: 12514334
$12.91 MSRP: $23.16
You Save: $10.25 (45%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: THERMOSTAT, Engine Coolant Temperature; Thermostat
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1982-1987 Buick Regal | 2 DOOR, 4 DOOR, REGAL, STATION WAGON | 6 Cyl 3.8L, 6 Cyl 4.1L
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Buick Regal Housing Assembly, Eng Cool Therm
Part Number: 25201447
$63.30 MSRP: $132.98
You Save: $69.68 (53%)
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Product Specifications
- Replaces: 12651603
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2014-2020 Buick Regal | 1SC 4 DOOR HATCHBACK, 1SL 4 DOOR HATCHBACK, 1SL 4 DOOR STATION WAGON, BASE 4 DOOR HATCHBACK, BASE 4 DOOR STATION WAGON, CX 4 DOOR SEDAN, CXL 4 DOOR SEDAN, CXS 4 DOOR SEDAN | 4 Cyl 2.0L
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Buick Regal Housing Assembly, Engine Coolant Thermostat
Part Number: 12605853
$93.08 MSRP: $195.56
You Save: $102.48 (53%)
ADD TO CART
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:
- 2011-2013 Buick Regal | CXL TURBO 4 DOOR SEDAN, CXS 4 DOOR SEDAN | 4 Cyl 2.0L
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Buick Regal 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:
- 1982-1987 Buick Regal | 2 DOOR, 4 DOOR, REGAL, STATION WAGON | 6 Cyl 4.3L Diesel, 8 Cyl 5.0L, 8 Cyl 5.7L Diesel
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Buick Regal Thermostat Assembly, Engine Coolant
Part Number: 22538325
$5.06 MSRP: $12.24
You Save: $7.18 (59%)
Ships in 1-2 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:
- 1982-1987 Buick Regal | 2 DOOR, 4 DOOR, REGAL, STATION WAGON | 8 Cyl 5.0L
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Buick Regal Thermostat Assembly, Engine Coolant
Part Number: 10207381
$22.58 MSRP: $40.52
You Save: $17.94 (45%)
Product Specifications
- Other Name: THERMOSTAT, Engine Coolant Temperature; Thermostat
- Replaces: 03054228, 3054228
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984-1985 Buick Regal | 2 DOOR, 4 DOOR, REGAL | 6 Cyl 3.8L
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Buick Regal 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:
- 1986-1987 Buick Regal | REGAL | 6 Cyl 3.8L

Buick Regal Thermostat

The Thermostat of the Buick Regal car helps control the temperature of the engine for the vehicle to perform as expected. Usually placed at the vicinity of the radiator, the thermostat features as closed loop controllers whose main job is to regulate the set temperature range. There has been the usage of various categories of thermostats in vehicles, some of which are the mechanical thermostat such as, bimetallic strips, wax pellets, and pneumatic thermostats that act through air filled control tubes. These operate through the use of switching of heating or cooling appliances or management of heat transfer fluids. In a Buick Regal vehicle, the thermostat play a significant role of regulating the temperature of the engine hence increasing efficiency and comfort in use.

Each OEM Buick Regal Thermostat we offer is competitively priced and comes with the assurance of the manufacturer's warranty for the part. Furthermore, we guarantee the speedy delivery of your orders right to your doorstep. Our hassle-free return policy is also in place for your peace of mind.

Buick Regal Thermostat Parts Questions & Experts Answers

Thermostat,Engine Coolant
10207373
Q: How to replace the thermostat in a cylinder head for Buick Century and Regal?
A: Remove any gasket or sealer with the thermostat from the Cylinder Head. Unbolt the water neck by draining the coolant system below the thermostat level when trying to replace it. The next step is to remove the water neck and thereby expose the thermostat. Thereafter, clean off all traces of remnants from both manifold and residual gasket material or sealer on water necks that mate. Installing it with its wax pellet downwards is a good idea. Besides, apply some sealant on both sides of the gasket then put it on block. Finally, hold it down using retainer bolts.