Pontiac Bonneville Engine Compartment Light Bulb Size
The Pontiac Bonneville engine compartment light utilizes bulb sizes 561, 105, P21W, 1003, and 93 depending on the specific production period. Available data covers a range from 1957 through 2003.
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 |
|---|---|
| 1992-2003 | 561 |
| 1989-1990 | 105 |
| 1988 | P21W |
| 1984 | 1003 |
| 1981 | 1003 |
| 1977 | 1003 |
| 1972-1973 | 1003 |
| 1968-1970 | 1003 |
| 1967 | 93 |
| 1959-1966 | P21W |
| 1957-1958 | 93 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Festoon bulb, 44mm length, end-cap contacts. 12V, 12W. | 561 |
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Variant of 1156. 12V, 13W. | 105 |
| ECE standard (Europe & worldwide). Single-filament signalling bulb with BA15s bayonet base. 12V, 21W. | P21W |
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W. | 1003 |
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 13W. | 93 |