How to Remove a Heater Core for Buick Century,Regal?

Vacuum hose routing clips, electrical wires and relays, weather seals, and other items may need to be re-located during removal and replacement of the heater core or the blower motor. Always tag any disconnected hoses or wires for installation and replace any damaged seal or sealer during reassembly to prevent water and air leaks.

How to remove and install a Heater Core on Buick Century and Regal?

Disconnect the negative battery cable, drain the radiator, then disconnect the heater inlet and outlet hoses at the dash, remove the blower inlet to firewall screws, remove the blower inlet, motor and wheel as an assembly, disconnect the control wires from the defroster door and vacuum hose diverter door actuator diaphragm and control cable from the temperature door lever, remove the four nuts securing the heater assembly to the dash, remove the screw securing the defroster outlet tab to the heater assembly, remove the heater assembly from the car, and remove the heater core from the heater assembly. Reverse the above steps for installation, refill cooling system, start engine check for leaks.

Genuine Buick Regal Heater Core

HVAC Heater Core

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7 Heater Cores found

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Buick Regal Core Kit,Heater
Part Number: 13406298
$54.79 MSRP: $167.24
You Save: $112.45 (68%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: CORE KIT, Heater Core; Heater Core
- Replaces: 20782084, 13263329
- 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 Core Kit, Heater
Part Number: 39141057
$62.81 MSRP: $118.50
You Save: $55.69 (47%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Core Kit, Htr; Heater Core
- Replaced by: 39158689
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2020 Buick Regal | 1SC 4 DOOR HATCHBACK, 1SL 4 DOOR HATCHBACK, 1SL 4 DOOR STATION WAGON, 1SX 4 DOOR HATCHBACK, BASE 4 DOOR HATCHBACK, BASE 4 DOOR STATION WAGON | 4 Cyl 2.0L, 6 Cyl 3.6L
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Buick Regal Core Asm,Heater
Part Number: 88956887
Product Specifications
- Other Name: CORE, Heater Core; Heater Core
- Replaces: 52465600, 52481498
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1997-2004 Buick Regal | CUSTOM, GL, GLX, GS, LIMITED, LS, REGAL | 6 Cyl 3.8L
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Buick Regal Core Asm,Heater
Part Number: 19131975
Product Specifications
- Other Name: CORE, Heater; Core, Heater Core
- Replaces: 52479867, 3037852, 03037852
- 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, 6 Cyl 4.3L Diesel, 8 Cyl 5.0L, 8 Cyl 5.7L Diesel
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Buick Regal Core Asm,Heater
Part Number: 19254459
Product Specifications
- Other Name: CORE, Heater Core
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1992-1996 Buick Regal | 2 DOOR, 4 DOOR, CUSTOM 2 DOOR, CUSTOM 4 DOOR, GRAN SPORT 2 DOOR, GRAN SPORT 4 DOOR, LIMITED 2 DOOR, LIMITED 4 DOOR | 6 Cyl 3.1L, 6 Cyl 3.8L
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Buick Regal Core Asm,Heater
Part Number: 52487191
Product Specifications
- Other Name: CORE, Heater Core; Core, Heater Core
- Replaces: 3091147, 03091147
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1988-1996 Buick Regal | 2 DOOR, 4 DOOR, CUSTOM 2 DOOR, CUSTOM 4 DOOR, GRAN SPORT 2 DOOR, GRAN SPORT 4 DOOR, LIMITED, LIMITED 2 DOOR, LIMITED 4 DOOR, REGAL | 6 Cyl 2.8L, 6 Cyl 3.1L, 6 Cyl 3.8L
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Buick Regal Core Asm,Heater
Part Number: 88956885
Product Specifications
- Other Name: CORE, Heater Core; Heater Core
- Replaces: 52481472, 52481853
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1998 Buick Regal | CUSTOM, GS, LIMITED, LS | 6 Cyl 3.8L

Buick Regal Heater Core Parts Questions & Experts Answers

Core Asm,Heater
19131975
Q: How to Remove a Heater Core for Buick Century,Regal?
A: Vacuum hose routing clips, electrical wires and relays, weather seals, and other items may need to be re-located during removal and replacement of the heater core or the blower motor. Always tag any disconnected hoses or wires for installation and replace any damaged seal or sealer during reassembly to prevent water and air leaks.
Core Asm,Heater
19131975
Q: How to remove and install a Heater Core on Buick Century and Regal?
A: Disconnect the negative Battery Cable, drain the radiator, then disconnect the heater inlet and outlet hoses at the dash, remove the blower inlet to firewall screws, remove the blower inlet, motor and wheel as an assembly, disconnect the control wires from the defroster door and vacuum hose diverter door actuator diaphragm and control cable from the temperature door lever, remove the four nuts securing the heater assembly to the dash, remove the screw securing the defroster outlet tab to the heater assembly, remove the heater assembly from the car, and remove the heater core from the heater assembly. Reverse the above steps for installation, refill cooling system, start engine check for leaks.