Cadillac Series 75 Fleetwood Trunk Bulb Size
The Cadillac Series 75 Fleetwood trunk light uses 89 and 1003 bulb sizes for the interior compartment illumination. Data for the specific components covers the period from 1953 through 1964.
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 |
|---|---|
| 1959-1964 | 89 |
| 1957-1958 | 1003 |
| 1953-1956 | 89 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 13W. | 89 |
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W. | 1003 |