Kia Spectra5 Trunk Bulb Size

The Kia Spectra5 trunk utilizes DE3423 and 168 bulb sizes for the specific lighting components located within the rear cargo area of the vehicle. Data for the specified lighting requirements covers the period from 2005 through 2009.

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
2007-2009	DE3423
2005-2006	168

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Festoon bulb, 41mm length, end-cap contacts. 12V.	DE3423
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W.	168

Other Locations

Additional Notes

The Kia Spectra5 trunk bulb specification changed between the 2006 and 2007 model years, with the DE3423 replacing the 168 from 2007 onward through 2009.
The DE3423 is a festoon-type bulb with a 41mm length and end-cap contacts, operating at 12V. Festoon bulbs seat by pressing their end caps into spring clips rather than inserting into a socket.
The 168 is a T10 miniature wedge bulb rated at 12V and 4.9W. Wedge bulbs are held in place by the tension of the socket itself, with no separate base or cap.
Both the DE3423 and 168 conform to ANSI standards applicable in the US and Canada, meaning they follow defined performance and dimensional criteria for those markets.
The 2005-2006 Spectra5 uses the 168 bulb for the trunk, while the 2007-2009 model years use the DE3423. These two bulb types are not interchangeable due to their different form factors and mounting methods.
The DE3423 festoon format and the T10 wedge format of the 168 require different socket types, so a direct substitution between the two without a compatible housing is not supported by the specifications.