Isuzu NPR License Plate Bulb Size

The Isuzu NPR license plate light requires a single bulb size of 89 for the specified vehicle lighting component. Available data for the bulb specifications covers the range from 1986 through 2013.

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
2002-2013	89 (Tilt Cab)
1996-2001	89
1986-1995	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 NPR uses the 89 bulb for the license plate position across all model years listed in the specifications, spanning 1986 to 2013.
The 89 bulb is an ANSI-standardized type recognized in both the United States and Canada, operating at 12 volts and 13 watts.
It is a single-filament bulb, meaning it serves one lighting function rather than combining two, such as stop and tail, into a single unit.
The 89 bulb uses a BA15s bayonet base, which is a single-contact bayonet mount that locks into the socket with a twist rather than a threaded or plug-in connection.
The 89 is a lower-wattage variant of the 1156 bulb, which shares the same BA15s bayonet base but draws more power. The shared base type means physical fitment may be possible, though the wattage difference makes the 1156 a non-equivalent substitute for the 89 in this application.
Specifications for the 2002-2013 model years carry a Tilt Cab designation, indicating that fitment data applies specifically to that cab configuration of the NPR during those years.
Specifications for the 1986-1995 model years carry a Heavy Duty designation, indicating that fitment data applies specifically to that variant of the NPR during those years.
The 1996-2001 model years are listed without a sub-model designation, appearing as general NPR entries in the specifications.