Isuzu FRR Back Up Light Bulb Size

The Isuzu FRR back up light requires a bulb size of 1156 for the specific lighting component located at the rear of the vehicle. Available data for the specified bulb covers the time range from 1996 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
2000-2004	1156 (Tilt Cab)
1996-1998	1156 (Tilt Cab)

Bulb Specifications

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

Other Locations

Additional Notes

The Isuzu FRR uses the 1156 bulb size for its back up light across all listed model years.
The 1156 is an ANSI-standardized bulb type recognized across the United States and Canada.
It is a single-filament bulb, meaning it serves one lighting function rather than sharing a housing with a second filament for a separate function such as braking.
The 1156 operates at 12 volts and draws 21 watts, which is consistent with standard automotive incandescent reverse lighting applications.
The bulb uses a BA15s bayonet base, a single-contact fitting where the "s" denotes a single pin, distinguishing it from the dual-contact BA15d variant.
The BA15s base type is not interchangeable with dual-contact bayonet bases, and substituting a BA15d bulb in a BA15s socket is not compatible.
All listed fitments carry a Tilt Cab body designation, indicating this specification applies specifically to that cab configuration of the FRR.
The covered model years span 1996-2004, with 1999 not present among the listed entries.