How to replace the engine coolant thermostat (L26/3.8L) on Buick Lucerne?

To replace the l26/3.8l engine coolant Thermostat, commence from removing the intake manifold cover. Sometimes flushing the engines when they go through deep cooling after a long journey. Use hose clamp pliers (J 38185) to move hose clamp to the Thermostat Housing and pull the radiator inlet hose free of the Thermostat Housing. Then remove the Thermostat Housing bolts and the housing with the Thermostat after it. Check and clean the Thermostat Housing mating surfaces. For installation, fit the new Thermostat in its place, and install the Thermostat Housing and bolts with its torque to be 25 n.m (18 lb ft). Replace the radiator inlet hose in the Thermostat Housing after putting on the spray can of liquid pressure connection for the radiator, then secure the hose clamp with the hose clamp pliers (J 38185). Lastly, fill with the cooling system and re-install the intake manifold cover.

OEM Buick Lucerne Thermostat

Engine Coolant Thermostat

Select Vehicle by Model
Select Vehicle by VIN

Select Vehicle by Model

Make

Model

Year

Select Vehicle by VIN

For the most accurate results, select vehicle by your VIN (Vehicle Identification Number).

4 Thermostats found

View related parts
Buick Lucerne Thermostat Unit
Part Number: 24505924
$23.98 MSRP: $47.60
You Save: $23.62 (50%)
ADD TO CART
Product Specifications
- Other Name: Thermostat Assembly-Engine Coolant (W/Gasket); Thermostat; Thermostat, Engine Coolant Temperature
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2008 Buick Lucerne | CX, CXL | 6 Cyl 3.8 L GAS
View related parts
Buick Lucerne Thermostat Housing
Part Number: 1647540
$11.19 MSRP: $21.01
You Save: $9.82 (47%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Housing E; Thermostat Housing Cover; Water Outlet; Housing, Engine Coolant Thermostat
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2011 Buick Lucerne | CXL, CXS, Super | 8 Cyl 4.6 L GAS
View related parts
Buick Lucerne Thermostat
Part Number: 12591881
$45.62 MSRP: $85.67
You Save: $40.05 (47%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Thermostat Assembly-Engine Coolant; Thermostat, Engine Coolant Temperature
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2009-2011 Buick Lucerne | CX, CXL, CXL Special Edition | 6 Cyl 3.9 L FLEX, 6 Cyl 3.9 L GAS
View related parts
Buick Lucerne Thermostat
Part Number: 12559807
$46.49 MSRP: $92.28
You Save: $45.79 (50%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Thermostat, Engine Coolant Temperature
- Replaces: 12555811, 12554784, 3531407
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2011 Buick Lucerne | CXL, CXS, Super | 8 Cyl 4.6 L GAS

Buick Lucerne Thermostat

Our website offers an extensive catalog of genuine Buick Lucerne Thermostat at unbeatable prices. Every OEM Buick Lucerne Thermostat comes with a manufacturer's warranty, an easy return policy, and rapid delivery service. Don't miss out on this great opportunity!

Buick Lucerne Thermostat Parts Questions & Experts Answers

Thermostat
12559807
Q: How to replace the engine coolant thermostat (L26/3.8L) on Buick Lucerne?
A: To replace the l26/3.8l engine coolant Thermostat, commence from removing the intake manifold cover. Sometimes flushing the engines when they go through deep cooling after a long journey. Use hose clamp pliers (J 38185) to move hose clamp to the Thermostat Housing and pull the radiator inlet hose free of the Thermostat Housing. Then remove the Thermostat Housing bolts and the housing with the Thermostat after it. Check and clean the Thermostat Housing mating surfaces. For installation, fit the new Thermostat in its place, and install the Thermostat Housing and bolts with its torque to be 25 n.m (18 lb ft). Replace the radiator inlet hose in the Thermostat Housing after putting on the spray can of liquid pressure connection for the radiator, then secure the hose clamp with the hose clamp pliers (J 38185). Lastly, fill with the cooling system and re-install the intake manifold cover.