Buick Roadmaster Dome Light Bulb Size
The Buick Roadmaster dome light requires bulb sizes 561, 90, or 1004 depending on the specific version. Data for the bulb sizes covers the range from 1954 to 1991.
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 Type | Shop |
|---|---|---|
| 1991 | 561 | Check Price |
| 1957-1958 | 90 | Check Price |
| 1956 | 1004 | Check Price |
| 1954-1955 | 90 | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| ANSI standard (US & Canada). Festoon bulb, 44mm length, end-cap contacts. 12V, 12W. | 561 | Check Price |
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 13W. | 90 | Check Price |
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. Variant of 1157. 12V, 21/5W. | 1004 | Check Price |