Kia Rio5 License Plate Bulb Size

The Kia Rio5 license plate light uses a 168 bulb size for illumination purposes on the rear exterior of the vehicle. Data for the specific component covers the range from 2006 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
2006-2011	168

Bulb Specifications

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

Other Locations

Additional Notes

The Kia Rio5 uses the 168 bulb size for the license plate position across all listed model years, spanning 2006-2011.
The 168 bulb is classified under the ANSI standard, which is the recognized designation system for miniature bulbs in the United States and Canada.
This bulb follows the T10 form factor, a miniature wedge-base design that seats without a separate socket pin, relying instead on the wedge shape of its glass envelope to make electrical contact.
The 168 operates at 12 volts, consistent with the standard electrical system voltage found in passenger vehicles.
The rated wattage of 4.9W places the 168 in the low-power range typical of license plate and courtesy lighting applications.
The T10 wedge base is a widely produced form factor, and the 168 shares this base with several other bulb numbers in the same family, such as the 194 and 192, though those variants differ in wattage and are not interchangeable without accounting for the electrical load difference.