Pontiac Chieftain Brake Bulb Size
The Pontiac Chieftain brake light uses 1034 and 1154 bulb sizes for the lighting components. Data for the lighting specifications covers the period from 1950 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 | 1034 |
| 1950-1954 | 1154 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. Variant of 1157. 12V, 21/5W. | 1034 |
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. Older variant of 1157. 6V/12V. | 1154 |