Mercury Monarch Brake Bulb Size
The Mercury Monarch brake light requires a 1157 bulb size for proper operation and visibility on the road. Data for 1157 bulb usage covers the 1975 to 1980 production period.
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 |
|---|---|
| 1975-1980 | 1157 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. 12V, 21W/5W. | 1157 |