Lincoln Mark VII Turn Signal Bulb Size
Lincoln Mark VII front turn signal bulbs utilize 3157NA, 3057NA, or 1157NA bulb sizes, while rear turn signal applications require 3157 or 1157 bulb sizes. The replacement chart covers 1984 through 1992 production years with corresponding bulb size specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
Front Turn Signal
| Years | Bulb Size |
|---|---|
| 1992 | 3157NA |
| 1991 | 3057NA |
| 1989-1990 | 3157NA |
| 1988 | 1157NA |
| 1987 | 1034NA |
| 1985-1986 | 1157NA |
| 1984 | 1034NA |
Rear Turn Signal
| Years | Bulb Size |
|---|---|
| 1989-1992 | 3157 |
| 1984-1988 | 1157 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Dual-filament wedge bulb (T25), natural amber glass. 12V, 27W/7W. | 3157NA |
| ANSI standard (US & Canada). Dual-filament wedge bulb (T25), natural amber glass. 12V, 27W/7W. | 3057NA |
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base, natural amber glass. 12V, 21W/5W. | 1157NA |
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base, natural amber glass. Variant of 1157. 12V, 21/5W. | 1034NA |
| ANSI standard (US & Canada). Dual-filament wedge bulb (T25). 12V, 27W/7W. | 3157 |
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. 12V, 21W/5W. | 1157 |