Oldsmobile 442 Trunk Bulb Size
The Oldsmobile 442 Trunk light uses 194, 631, and 89 bulb sizes depending on the specific production period for the vehicle. Data for the lighting components covers the period from 1964 through 1971.
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 |
|---|---|
| 1971 | 194 |
| 1970 | 631 |
| 1968-1969 | 89 |
| 1967 | 631 |
| 1966 | 89 |
| 1964-1965 | 631 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W. | 194 |
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Variant of 1156. 12V, 21W. | 631 |
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 13W. | 89 |