Buick GS 400 Instrument Panel Bulb Size
The Buick GS 400 instrument panel uses bulb size 53 and bulb size 194 for the illumination of the gauges. Data for the specific components covers the range from 1968 to 1969.
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 |
|---|---|
| 1969 | 53 |
| 1968 | 194 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Single-filament bulb with BA9s base. 12V, 2W. | 53 |
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W. | 194 |