Pontiac Bonneville Turn Signal Indicator Bulb Size
The Pontiac Bonneville turn signal indicator utilizes bulb sizes 74, 168, 168NA, 194, 1895, 57, and 257. Available information covers the range from 1958 through 1993.
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 |
|---|---|
| 1987-1993 | 74 |
| 1983-1986 | 168 |
| 1982 | 168NA |
| 1972-1981 | 194 |
| 1971 | 1895 |
| 1967-1970 | 194 |
| 1964-1966 | 1895 |
| 1959-1963 | 57 |
| 1958 | 257 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 1.4W. | 74 |
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W. | 168 |
| ANSI standard (US & Canada). Miniature wedge bulb (T10), natural amber glass. 12V, 4.9W. | 168NA |
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W. | 194 |
| ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 0.9W. | 1895 |
| ANSI standard (US & Canada). Single-filament bulb with BA9s base. 12V, 1W. | 57 |
| ANSI standard (US & Canada). Festoon or BA9s base instrument bulb. 12V, 2W. | 257 |