Ford F-350 Courtesy Bulb Size
The Ford F-350 courtesy light utilizes unique bulb sizes 912, 561, 89, 1891, 631, 1004, and 1003. Available data covers the range of 1956 through 1997 for the specified lighting components.
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
If US Type and EU Type show the same value, a direct cross-reference for this bulb is not available or the data is insufficient.
| Years | US Type | EU Type | Shop |
|---|---|---|---|
| 1997 | 912 | W16W | Check Price |
| 1996 | 561 | 561 | Check Price |
| 1995 | 912 | W16W | Check Price |
| 1994 | 89 | 89 | Check Price |
| 1992-1993 | 912 | W16W | Check Price |
| 1991 | 89 | 89 | Check Price |
| 1981-1990 | 912 | W16W | Check Price |
| 1980 | 1891 | 1891 | Check Price |
| 1969-1972 | 631 | 631 | Check Price |
| 1964-1968 | 1004 | 1004 | Check Price |
| 1956 | 1003 | 1003 | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| ANSI standard (US & Canada). Wedge bulb (T15). Variant of 921. 12V, 12W. | 912 | Check Price |
| ANSI standard (US & Canada). Festoon bulb, 44mm length, end-cap contacts. 12V, 12W. | 561 | Check Price |
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 13W. | 89 | Check Price |
| ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 2W. | 1891 | Check Price |
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Variant of 1156. 12V, 21W. | 631 | Check Price |
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. Variant of 1157. 12V, 21/5W. | 1004 | Check Price |
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W. | 1003 | Check Price |