Hyundai Sonata Trunk Bulb Size

The Hyundai Sonata trunk area utilizes DE3423, DE3175, and DE3022 bulb sizes for illumination across various production versions. Available data covers the period from 1989 through 2022 for the specified vehicle components.

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
2021-2022	DE3423
2016-2018	DE3175
1999-2010	DE3423
1995-1998	DE3022
1989-1994	DE3423

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Festoon bulb, 41mm length, end-cap contacts. 12V.	DE3423
ANSI standard (US & Canada). Festoon bulb, 31mm length, end-cap contacts. 12V.	DE3175
ANSI standard (US & Canada). Festoon bulb, 31mm length, end-cap contacts. 12V.	DE3022

Other Locations

Additional Notes

The Hyundai Sonata trunk bulb specifications reference three bulb sizes across the listed model years: DE3423, DE3175, and DE3022. All three follow the ANSI standard used in the US and Canada, operate at 12V, and belong to the festoon bulb family, which uses end-cap contacts rather than a pin or wedge base.
The DE3423 is the most frequently specified bulb across the Sonata trunk fitment data, appearing in the 1989-1994, 1999-2010, and 2021-2022 model years. It is a 41mm festoon bulb, making it physically longer than the other two types listed in these specifications.
The DE3175 and DE3022 are both 31mm festoon bulbs with end-cap contacts and 12V ratings. Despite sharing the same physical length and contact style, they carry different part designations and are not listed as interchangeable within these specifications.
The DE3175 is specified for the Hyundai Sonata in the 2016-2018 model years, while the DE3022 applies to the 1995-1998 model years. Substituting one 31mm festoon type for the other without confirming fitment compatibility could result in an incorrect installation.
The 41mm length of the DE3423 means it will not seat correctly in a socket designed for a 31mm festoon bulb. Festoon holders are sized to grip the end caps at a fixed span, so length mismatches between DE3423 and either 31mm type result in a non-functional or unsecured fit.
All three bulb types in these specifications use end-cap contacts, meaning electrical contact is made at each flat metal end of the bulb rather than through pins or a wedge base. This contact style is standard across the festoon format and is what distinguishes it from other interior bulb types.
The ANSI designations used here, DE3423, DE3175, and DE3022, are standardized codes that define the bulb's physical and electrical characteristics. The "DE" prefix denotes a dome or festoon-style lamp, and the numerical portion encodes length and other attributes recognized across manufacturers.