Isuzu Trooper Map Light Bulb Size

The Isuzu Trooper map light requires a 168 bulb size for proper installation and function within the interior overhead lighting assembly. Available data for the specific component covers the period from 1994 through 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
1994-2002	168

Bulb Specifications

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

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Additional Notes

The Isuzu Trooper uses the 168 bulb size for the map light across all listed model years, spanning 1994-2002.
The 168 bulb is an ANSI-standardized type, meaning its specifications are defined by the American National Standards Institute and are consistent across manufacturers in the United States and Canada.
This bulb follows the T10 form factor, which refers to a miniature wedge-base design. The wedge base means the glass envelope itself acts as the retaining mechanism when inserted into the socket, with no separate metal base or pins.
The 168 operates at 12 volts, which is consistent with standard automotive electrical systems.
The rated power draw of the 168 is 4.9 watts, placing it in the low-wattage range typical of interior courtesy and reading lights.
The T10 wedge base is a widely used form factor in automotive interior lighting, and the 168 designation is specific to a defined wattage and voltage within that base family. Other T10 bulbs with different wattages, such as the 194 at 3.8 watts, are not interchangeable by specification even though they share the same base type.