How to Remove and Install a Headlight Switch on Buick Century and Regal?

Disconnect the negative battery cable and on 1975-79 models with air conditioning, remove the left A/C duct or tube. Pull the switch knob to the last notch and depress the spring loaded latch button on top of the switch while pulling the knob and rod out of the switch. On 1978 and later models, depress the retainer tab behind the knob and remove the knob. Remove the left I/P trim plate by grasping plate and careful pull straight out. Remove the screws securing the headlight switch in place. Disconnect the multiple electrical harness from the switch, and remove. For 1984-87 models, remove left hand I/P trim cover by grasping the trim cover on both sides and pull straight out. Remove the three 7mm retainer screws and pull the switch straight out. To install, push the switch straight in being careful not to damage prongs on new switch, tighten screws, connect battery cable and check operation.

Genuine Buick Century Headlight Switch

Headlamp Switch

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16 Headlight Switches found

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Buick Century Switch,Headlamp Dimmer
Part Number: 7838234
- Other Name: SWITCH, Headlamp Dimmer; Dimmer Switch, Headlamp Dimmer Switch
$45.18 MSRP: $67.54
You Save: $22.36 (34%)

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Fits the following Vehicles:
1982-1990 Buick Century | CUSTOM 2 DOOR, CUSTOM 4 DOOR, CUSTOM STATION WAGON, LIMITED 2 DOOR, LIMITED 4 DOOR | 4 Cyl 2.5L, 6 Cyl 2.8L, 6 Cyl 3.0L, 6 Cyl 3.3L, 6 Cyl 3.8L, 6 Cyl 4.3L Diesel
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Buick Century Switch, Turn Signal
Part Number: 1997073
- Other Name: SWITCH, Turn Signal Lamp; Signal Switch
- Replaces: 1997087
$33.99 MSRP: $80.93
You Save: $46.94 (59%)

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Fits the following Vehicles:
1991 Buick Century | CUSTOM 2 DOOR, CUSTOM 4 DOOR, CUSTOM STATION WAGON, LIMITED 4 DOOR, SPECIAL 4 DOOR | 4 Cyl 2.5L
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Buick Century Switch Asm,Turn Signal & Headlamp Dimmer Switch & Windshield Wiper & Windshield Washer (W/ Lever)
Part Number: 88963625
- Other Name: SWITCH, Windshield Wiper Control; Combo Switch, Turn Signal Switch
- Replaces: 26081121, 26085929, 26067715
$261.23 MSRP: $518.32
You Save: $257.09 (50%)

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Fits the following Vehicles:
1997-2005 Buick Century | CUSTOM, CUSTOM 4 DOOR, GL, GLX, GS, LIMITED, LS, REGAL | 6 Cyl 3.1L
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Buick Century Switch Assembly, Fog Lamp
Part Number: 10403858
- Other Name: SWITCH, Headlamp/Fog Lamp/Turn Signal; Fog Lamp Switch
- Replaces: 10292961
$29.80 MSRP: $60.09
You Save: $30.29 (51%)

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Fits the following Vehicles:
1997-2004 Buick Century | CUSTOM, GS, LIMITED, LS, REGAL | 6 Cyl 3.1L
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Buick Century Switch,Dimmer
Part Number: 26035244
- Other Name: SWITCH
- Replaces: 7841239, 07841239
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Fits the following Vehicles:
1982-1991 Buick Century | CUSTOM 2 DOOR, CUSTOM 4 DOOR, CUSTOM STATION WAGON, LIMITED 2 DOOR, LIMITED 4 DOOR, SPECIAL 4 DOOR | 4 Cyl 2.5L, 6 Cyl 2.8L, 6 Cyl 3.0L, 6 Cyl 3.3L, 6 Cyl 3.8L, 6 Cyl 4.3L Diesel
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Buick Century Switch,Wiper Pulse,Dimmer Pivot
Part Number: 7844704
- Other Name: SWITCH, Headlamp Dimmer; Headlamp Dimmer Switch, Wiper Switch
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Fits the following Vehicles:
1982-1987 Buick Century | CUSTOM 2 DOOR, CUSTOM 4 DOOR, CUSTOM STATION WAGON, LIMITED 2 DOOR, LIMITED 4 DOOR | 4 Cyl 2.5L, 6 Cyl 2.8L, 6 Cyl 3.0L, 6 Cyl 3.8L, 6 Cyl 4.3L Diesel
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Buick Century Switch,Turn Signal
Part Number: 1995980
- Other Name: SWITCH, Turn Signal Lamp; Signal Switch, Turn Signal Switch
More Info
Fits the following Vehicles:
1991-1996 Buick Century | CUSTOM, CUSTOM 2 DOOR, CUSTOM 4 DOOR, CUSTOM STATION WAGON, LIMITED 4 DOOR, SPECIAL, SPECIAL 4 DOOR, SPECIAL STATION WAGON | 4 Cyl 2.2L, 4 Cyl 2.5L, 6 Cyl 3.1L, 6 Cyl 3.3L
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Buick Century Switch Asm,Turn Signal
Part Number: 1995974
- Other Name: SWITCH, Turn Signal Lamp; Signal Switch, Turn Signal Switch
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Fits the following Vehicles:
1988-1991 Buick Century | CUSTOM 2 DOOR, CUSTOM 4 DOOR, CUSTOM STATION WAGON, LIMITED 2 DOOR, LIMITED 4 DOOR, SPECIAL 4 DOOR | 4 Cyl 2.5L
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Buick Century Switch,Dimmer
Part Number: 26035243
- Other Name: SWITCH, Headlamp Dimmer
More Info
Fits the following Vehicles:
1982-1990 Buick Century | CUSTOM 2 DOOR, CUSTOM 4 DOOR, CUSTOM STATION WAGON, LIMITED 2 DOOR, LIMITED 4 DOOR | 4 Cyl 2.5L, 6 Cyl 2.8L, 6 Cyl 3.0L, 6 Cyl 3.3L, 6 Cyl 3.8L, 6 Cyl 4.3L Diesel
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Buick Century Switch,Dimmer
Part Number: 10499721
- Other Name: SWITCH, Headlamp Dimmer; Dimmer Switch, Headlamp Dimmer Switch
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Fits the following Vehicles:
1989-1996 Buick Century | CUSTOM, CUSTOM 2 DOOR, CUSTOM 4 DOOR, CUSTOM STATION WAGON, LIMITED 4 DOOR, SPECIAL, SPECIAL 4 DOOR, SPECIAL STATION WAGON | 4 Cyl 2.2L, 4 Cyl 2.5L, 6 Cyl 3.1L, 6 Cyl 3.3L
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Buick Century Switch,Dimmer
Part Number: 10467409
- Other Name: SWITCH, Headlamp Dimmer; Dimmer Switch, Headlamp Dimmer Switch
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Fits the following Vehicles:
1994-1995 Buick Century | CUSTOM, CUSTOM STATION WAGON, SPECIAL, SPECIAL 4 DOOR, SPECIAL STATION WAGON | 4 Cyl 2.2L, 6 Cyl 3.1L
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Buick Century Switch Asm,Headlamp
Part Number: 19245087
- Other Name: SWITCH, Headlamp/Fog Lamp/Turn Signal; Headlamp Switch
- Replaces: 1995285, 01995285
More Info
Fits the following Vehicles:
1982-1996 Buick Century | CUSTOM, CUSTOM 2 DOOR, CUSTOM 4 DOOR, CUSTOM STATION WAGON, LIMITED 2 DOOR, LIMITED 4 DOOR, SPECIAL, SPECIAL 4 DOOR, SPECIAL STATION WAGON | 4 Cyl 2.2L, 4 Cyl 2.5L, 6 Cyl 2.8L, 6 Cyl 3.0L, 6 Cyl 3.1L, 6 Cyl 3.3L, 6 Cyl 3.8L, 6 Cyl 4.3L Diesel
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Buick Century Switch,Dimmer Pivot
Part Number: 7840274
- Other Name: SWITCH, Headlamp Dimmer; Headlamp Dimmer Switch, Wiper Switch
More Info
Fits the following Vehicles:
1982-1987 Buick Century | CUSTOM 2 DOOR, CUSTOM 4 DOOR, CUSTOM STATION WAGON, LIMITED 2 DOOR, LIMITED 4 DOOR | 4 Cyl 2.5L, 6 Cyl 2.8L, 6 Cyl 3.0L, 6 Cyl 3.8L, 6 Cyl 4.3L Diesel
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Buick Century Potentiometer & Switch Asm
Part Number: 16502591
- Other Name: SWITCH, Headlamp/Fog Lamp/Turn Signal; Headlamp Switch
More Info
Fits the following Vehicles:
1982-1988 Buick Century | CUSTOM 2 DOOR, CUSTOM 4 DOOR, CUSTOM STATION WAGON, LIMITED 2 DOOR, LIMITED 4 DOOR | 4 Cyl 2.5L, 6 Cyl 2.8L, 6 Cyl 3.0L, 6 Cyl 3.8L, 6 Cyl 4.3L Diesel
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Buick Century Switch Assembly, Fog Lamp & Driver Information Display
Part Number: 10403857
- Other Name: SWITCH, Headlamp/Fog Lamp/Turn Signal; Fog Lamp Switch
- Position: Driver Side
More Info
Fits the following Vehicles:
1997-2004 Buick Century | CUSTOM, GS, LIMITED, LS, REGAL | 6 Cyl 3.1L
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Buick Century Switch Assembly, Headlamp
Part Number: 10416123
- Other Name: SWITCH, Headlamp/Fog Lamp/Turn Signal; Headlamp Switch
- Replaces: 10256570
More Info
Fits the following Vehicles:
1997-2005 Buick Century | CUSTOM, CUSTOM 4 DOOR, GL, GLX, GS, LIMITED, LS, REGAL | 6 Cyl 3.1L
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Buick Century Headlight Switch Parts Questions & Answers

Switch Asm,Headlamp
19245087
Q: How to Remove and Install a Headlight Switch on Buick Century and Regal?
A: Disconnect the negative battery cable and on 1975-79 models with air conditioning, remove the left A/C duct or tube. Pull the switch knob to the last notch and depress the spring loaded latch button on top of the switch while pulling the knob and rod out of the switch. On 1978 and later models, depress the retainer tab behind the knob and remove the knob. Remove the left I/P trim plate by grasping plate and careful pull straight out. Remove the screws securing the headlight switch in place. Disconnect the multiple electrical harness from the switch, and remove. For 1984-87 models, remove left hand I/P trim cover by grasping the trim cover on both sides and pull straight out. Remove the three 7mm retainer screws and pull the switch straight out. To install, push the switch straight in being careful not to damage prongs on new switch, tighten screws, connect battery cable and check operation.