Buick Century Turn Signal Indicator Bulb Size
The Buick Century turn signal indicator utilizes bulb sizes PC74, 194, and 257 for various lighting applications within the instrument cluster. Data for the specified components covers the range from 1958 through 2001.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
Bulb Size by Year Range
| Years | Bulb Size |
|---|---|
| 1997-2001 | PC74 |
| 1975-1985 | 194 |
| 1958 | 257 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Miniature wedge bulb (T5) with printed circuit board twist-lock socket, for instrument clusters. 12V, 1.4W. | PC74 |
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W. | 194 |
| ANSI standard (US & Canada). Festoon or BA9s base instrument bulb. 12V, 2W. | 257 |