Lincoln Mark IV Turn Signal Indicator Bulb Size
The Lincoln Mark IV turn signal indicator requires a bulb size of 194 for proper operation. Data for the specified component covers the range from 1972 through 1976.
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 |
|---|---|
| 1972-1976 | 194 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W. | 194 |