Ford F-550 Super Duty Dome Light Bulb Size
The Ford F-550 Super Duty dome light utilizes 578 and 912 bulb sizes for interior illumination across various production versions. Data for the specified lighting components covers the range from 1999 through 2016.
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 |
|---|---|---|---|
| 2005-2016 | 578 | 578 | Check Price |
| 2003-2004 | 912 | W16W | Check Price |
| 2002 | 578 | 578 | Check Price |
| 1999-2001 | 912 | W16W | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| ANSI standard (US & Canada). Festoon bulb, 41mm length, end-cap contacts. 12V, 12W. | 578 | Check Price |
| ANSI standard (US & Canada). Wedge bulb (T15). Variant of 921. 12V, 12W. | 912 | Check Price |