Isuzu FTR License Plate Bulb Size

The Isuzu FTR license plate light requires a bulb size of 89 for the specified vehicle lighting component. Available data for the bulb specifications covers the range from 1988 to 2011.

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
2002-2011	89 (Tilt Cab)
1996-2001	89
1988-1995	89 (Heavy Duty)

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 13W.	89

Other Locations

Additional Notes

The Isuzu FTR uses the ANSI 89 bulb for the license plate position across all listed model years from 1988 to 2011.
The 89 bulb is a single-filament type, meaning it serves one lighting function rather than combining two, such as stop and tail.
It uses a BA15s bayonet base, which is a single-contact bayonet mount with a 15mm collar. The "s" designation indicates a single contact pin offset, distinguishing it from dual-contact variants.
The 89 bulb operates at 12 volts and draws 13 watts, placing it in the lower output range of the BA15s bayonet family.
It is described as a lower wattage variant of the 1156 bulb. While both share the BA15s base and single-filament design, the 1156 operates at a higher wattage, making the two non-equivalent as direct replacements in all applications.
The ANSI 89 designation confirms the bulb meets a standardized specification recognized in both the United States and Canada.
For the 2002-2011 model years, the Tilt Cab configuration is specified, indicating this fitment applies to that cab style within those years.
The 1990-1995 model years carry a Heavy Duty designation, identifying a distinct configuration within the FTR lineup for those years.
The 1996-2001 model years carry no additional configuration qualifier in the specifications, representing entries without a noted cab or duty variant.