Kia K5 Map Light Bulb Size

The Kia K5 map light requires a DE3423 bulb size for proper installation within the interior overhead lighting housing. Data for the specific component covers the range from 2021 to 2024.

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 Type	Shop
2023-2024	DE3423	Check Price
2021	DE3423	Check Price

Bulb Specifications

Description	Type	Shop
ANSI standard (US & Canada). Festoon bulb, 41mm length, end-cap contacts. 12V.	DE3423	Check Price

Other Locations

Additional Notes

The DE3423 is a festoon-style bulb, meaning it is cylindrical in shape with metal end-cap contacts at each end rather than a base pin or wedge fitting. This contact style requires a holder that grips both ends of the bulb.
The DE3423 operates at 12 volts, which is consistent with standard 12V automotive electrical systems.
At 41mm in length, the DE3423 must seat correctly within a fixed-length festoon socket. A bulb of a different length will not make proper contact with the end-cap terminals, even if the voltage rating matches.
The DE3423 carries an ANSI designation, indicating it conforms to a standardized specification recognized in the United States and Canada.
The Kia K5 map light uses the DE3423 across the 2021-2024 model years, reflecting a consistent socket specification throughout that production span.
Because festoon bulbs rely on end-cap contact rather than a keyed base, polarity orientation during installation is generally not a concern for incandescent versions of this bulb type.