Mercury Monterey Turn Signal Indicator Bulb Size
The Mercury Monterey turn signal indicator utilizes bulb sizes 194, 1895, 158, 257, and 1445 depending on the specific production period. Data for the components covers the range from 1958 through 1974.
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 |
|---|---|
| 1968-1974 | 194 |
| 1967 | 1895 |
| 1965-1966 | 158 |
| 1963-1964 | 1895 |
| 1960-1962 | 257 |
| 1958-1959 | 1445 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| 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). Miniature wedge bulb (T10). 12V, 3W. | 158 |
| ANSI standard (US & Canada). Festoon or BA9s base instrument bulb. 12V, 2W. | 257 |
| ANSI standard (US & Canada). Single-filament bulb with BA9s base. 12V, 2W. | 1445 |