Isuzu Ascender License Plate Bulb Size

The Isuzu Ascender license plate light requires a 168 bulb size for proper illumination of the rear vehicle identification area. Data for the specified lighting component covers the range from 2003 to 2008.

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
2003-2008	168

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W.	168

Other Locations

Additional Notes

The Isuzu Ascender uses the 168 bulb for the license plate position across all listed model years, spanning 2003-2008.
The 168 is a T10 miniature wedge bulb, meaning it uses a wedge-style base rather than a bayonet or screw fitting, and is inserted directly into a socket by friction.
The 168 operates at 12 volts and draws 4.9 watts, placing it among the lower-wattage bulbs used in automotive lighting applications.
The 168 conforms to ANSI standards recognized in both the United States and Canada, reflecting a standardized specification shared across North American markets.
The T10 designation refers to the bulb's tubular envelope width, expressed in tenths of an inch, making the envelope approximately one inch wide.
Because the 168 is a wedge-type bulb, it is physically interchangeable with other T10 wedge bulbs that share the same voltage and wattage ratings, though fitment should be confirmed against socket compatibility before substitution.