Pontiac GTO Automatic Transmission Indicator Bulb Size
The Pontiac GTO automatic transmission indicator utilizes bulb sizes 1891, 1893, 1445, and 1895 depending on the specific version of the component. Data for the lighting requirements covers the span from 1964 through 1971.
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 |
|---|---|
| 1971 | 1891 |
| 1970 | 1893 |
| 1965-1969 | 1445 |
| 1964 | 1895 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 2W. | 1891 |
| ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 2W. | 1893 |
| ANSI standard (US & Canada). Single-filament bulb with BA9s base. 12V, 2W. | 1445 |
| ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 0.9W. | 1895 |