Mercury Topaz Courtesy Bulb Size
The Mercury Topaz courtesy light uses bulb sizes 904 and 168 for interior illumination. Data for the specified components covers the period from 1987 through 1994.
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 |
|---|---|
| 1991-1994 | 904 |
| 1990 | 168 |
| 1987-1989 | 904 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 8W. | 904 |
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W. | 168 |