Ford L8000F Back Up Light Bulb Size

The Ford L8000F back up light requires bulb size 1156 for proper installation and function within the rear lighting assembly. Available data covers the production range from 1987 to 1997.

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
1987-1997	1156

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W.	1156

Other Locations

Additional Notes

The Ford L8000F uses the 1156 bulb for its back up light across all listed model years from 1987-1997.
The 1156 is an ANSI-standardized bulb type, meaning its specifications are governed by a recognized North American standard applicable in both the United States and Canada.
This bulb operates on a 12-volt electrical system and draws 21 watts, which is typical for incandescent automotive reverse lighting applications.
The 1156 uses a BA15s bayonet base, where "BA15s" denotes a single-contact bayonet fitting with a 15mm base width.
The single-filament design of the 1156 means it serves only one lighting function, distinguishing it from dual-filament variants such as the 1157, which handles two functions through separate filaments.
Because the 1156 is single-contact, it is not interchangeable with dual-contact bayonet bulbs even when the base width is otherwise similar.