Plymouth Custom Turn Signal Indicator Bulb Size
The Plymouth Custom turn signal indicator requires bulb size 57 or 257 depending on the specific version. Data for the bulb sizes covers the range from 1958 to 1961.
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 |
|---|---|
| 1961 | 57 |
| 1958-1960 | 257 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| 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 |