How to Service and Repair the Heater Core on 2006 Buick LaCrosse?

In order to change the heater core, empty the coolant and remove the heater hoses. Eliminate the instrument panel closeout panels, floor carpet and communication module. Unscrew the air outlet duct, take off the cover of the outlet core, and the heater core. Install new foam seal, heater core, reinstall parts and reconnect hoses.

OEM 2006 Buick LaCrosse Heater Core

HVAC Heater Core

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2006 Buick LaCrosse Heater Core Part Number: 89018289
$157.16 MSRP: $295.14
You Save: $137.98 (47%)
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Product Specifications
- Other Name: Core, Heater; Core, Heater Core
- Item Weight: 4.30 Pounds
- Item Dimensions: 20.0 x 16.0 x 8.9 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 89018289
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2006 Buick LaCrosse Submodels:
- CX, CXL, CXS, Super | 6 Cyl 3.6 L GAS, 6 Cyl 3.8 L GAS, 8 Cyl 5.3 L GAS

2006 Buick LaCrosse Heater Core

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2006 Buick LaCrosse Heater Core Parts and Q&A

Q: How to Service and Repair the Heater Core on 2006 Buick LaCrosse?
A: In order to change the heater core, empty the coolant and remove the heater hoses. Eliminate the instrument panel closeout panels, floor carpet and communication module. Unscrew the air outlet duct, take off the cover of the outlet core, and the heater core. Install new foam seal, heater core, reinstall parts and reconnect hoses.