Pontiac GTO Ignition Light Bulb Size
The Pontiac GTO ignition light uses bulb size 1895 or 257 depending on the specific vehicle configuration. Data for the provided bulb sizes covers the range from 1964 to 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 |
|---|---|
| 1966-1971 | 1895 |
| 1964-1965 | 257 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 0.9W. | 1895 |
| ANSI standard (US & Canada). Festoon or BA9s base instrument bulb. 12V, 2W. | 257 |