Lincoln Mark III Trunk Bulb Size
The Lincoln Mark III trunk light utilizes bulb sizes 194, 90, and 631 depending on the specific version of the vehicle. Data for the listed components covers the period from 1968 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 |
| 1969-1970 | 90 |
| 1968 | 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. 12V, 13W. | 90 |
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Variant of 1156. 12V, 21W. | 631 |