Kia Soul Trunk Bulb Size

The Kia Soul trunk bulb utilizes 2 distinct sizes: DE3175 and DE3423, with each bulb size corresponding to specific vehicle production years. A replacement chart documents the trunk bulb specifications across the 2010 to 2024 model range.

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
2014-2024	DE3175
2010-2013	DE3423

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Festoon bulb, 31mm length, end-cap contacts. 12V.	DE3175
ANSI standard (US & Canada). Festoon bulb, 41mm length, end-cap contacts. 12V.	DE3423

Other Locations

Additional Notes

The Kia Soul trunk bulb specifications cover model years 2010-2024 and reference two bulb sizes: DE3175 and DE3423.
Both the DE3175 and DE3423 are festoon-type bulbs, meaning they are cylindrical in shape and make electrical contact through metal caps at each end rather than through a base socket.
Both bulb types operate at 12 volts, which is standard for automotive interior lighting applications.
Both the DE3175 and DE3423 conform to ANSI standards and are specified for the US and Canadian markets.
The DE3175 has a 31mm length, while the DE3423 has a 41mm length, making the two bulbs physically incompatible with each other despite sharing the same festoon contact design.
The Kia Soul (2014-2024) uses the DE3175 bulb for the trunk, a fitment that remained consistent across eleven model years.
The Kia Soul (2010-2013) uses the longer DE3423 bulb for the trunk, which is not interchangeable with the DE3175 used in later model years.
The bulb size changed between the 2013 and 2014 model years, from the 41mm DE3423 to the 31mm DE3175, reflecting a difference in trunk lamp housing design between those generations.