Isuzu Trooper License Plate Bulb Size

The Isuzu Trooper license plate light utilizes a 168 bulb size for illumination purposes across all listed vehicle versions within the provided technical data set. Information provided covers a specific production range starting in 1984 and ending in 2002.

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
1984-2002	168

Bulb Specifications

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

Other Locations

Additional Notes

The Isuzu Trooper uses the 168 bulb size for the license plate position across all listed model years, spanning 1984-2002.
The 168 bulb is an ANSI-standardized type recognized in both the United States and Canada, meaning it conforms to a defined set of electrical and physical specifications shared across manufacturers.
It belongs to the T10 wedge bulb family, a miniature form factor identified by its wedge-shaped base, which connects directly into a socket without a separate metal base or pins.
The 168 operates at 12 volts, consistent with the standard electrical system voltage found in passenger vehicles.
Its rated wattage of 4.9W places it in the low-power range, which is typical for license plate illumination, a position that requires visibility rather than high output.
The T10 wedge format is shared by several bulb numbers in the same family, such as the 194 and 147, though these carry different wattage ratings and are not direct substitutes for the 168 without confirming socket and circuit compatibility.