Pontiac Chieftain Trunk Bulb Size
The Pontiac Chieftain trunk light requires a 1003 bulb size for proper illumination and function. Data for the specified lighting component covers the period from 1955 through 1958.
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 |
|---|---|
| 1955-1958 | 1003 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W. | 1003 |