Mercury Comet Engine Compartment Light Bulb Size
The Mercury Comet engine compartment light utilizes bulb sizes 89, 631, 93, and P21W depending on the specific application for the vehicle. Data for the lighting components covers the range from 1960 through 1977.
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 |
|---|---|
| 1973-1977 | 89 |
| 1966-1969 | 631 |
| 1965 | P21W |
| 1964 | 93 |
| 1961-1963 | P21W |
| 1960 | 93 |
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. Variant of 1156. 12V, 21W. | 631 |
| ECE standard (Europe & worldwide). Single-filament signalling bulb with BA15s bayonet base. 12V, 21W. | P21W |
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 13W. | 93 |