Mercury Marquis Trunk Bulb Size
The Mercury Marquis trunk light uses bulb sizes 89, 631, and 1003 depending on the specific production period for the vehicle. Available data covers the range from 1967 to 1986.
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 |
|---|---|
| 1985-1986 | 89 |
| 1980-1983 | 89 |
| 1979 | 1003 |
| 1972-1978 | 89 |
| 1969-1971 | 631 |
| 1968 | 1003 |
| 1967 | 631 |
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). Single-filament bulb with BA15s bayonet base. 12V, 21W. | 1003 |
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Variant of 1156. 12V, 21W. | 631 |