Buick Sportwagon Trunk Bulb Size
The Buick Sportwagon trunk bulb uses 2 distinct sizes: 89 and 194, with each bulb size corresponding to specific vehicle configurations. The replacement chart covers 1964 through 1972 production years and documents trunk bulb specifications for this model line.
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 |
|---|---|
| 1972 | 89 |
| 1971 | 194 |
| 1964-1970 | 89 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 13W. | 89 |
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W. | 194 |