Ford LTD Trunk Bulb Size
Ford LTD trunk bulb specifications include 3 distinct bulb sizes: 89, 1003, and 631, with each size corresponding to particular model configurations. The replacement chart documents vehicle production years spanning 1965 to 1986 with associated bulb size data.
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 |
|---|---|
| 1978-1986 | 89 |
| 1977 | 1003 |
| 1972-1976 | 89 |
| 1968-1971 | 631 |
| 1967 | 1156 |
| 1966 | 93 |
| 1965 | 1156 |
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 |
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W. | 1156 |
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 13W. | 93 |