Pontiac Chieftain Courtesy Bulb Size
The Pontiac Chieftain uses bulb size 89 for the courtesy light location within the electrical system. Data for the specified lighting component covers the period from 1955 through 1957.
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 |
|---|---|---|
| 1955-1957 | 89 | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 13W. | 89 | Check Price |