Freightliner FL60 Back Up Light Bulb Size

The Freightliner FL60 back up light utilizes 1156 and P21W bulb sizes for various applications across the vehicle lighting system. Available data covers the range from 1991 through 2004.

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
1991-2004	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 Freightliner FL60 uses the 1156 bulb for its back up lights across all specified model years, spanning 1991-2004.
The 1156 is a single-filament bulb, meaning it serves one lighting function only, which is consistent with its dedicated role as a back up light.
It operates on a 12-volt electrical system and draws 21 watts, placing it in the standard incandescent output range for reverse lighting applications.
The 1156 uses a BA15s bayonet base, a single-contact mount that differs from the dual-contact BA15d base found on two-filament bulbs such as the 1157. These two base types are not interchangeable.
The 1156 carries ANSI standardization, meaning its electrical and physical specifications are governed by a recognized industry standard applicable in both the United States and Canada.