Hyundai Tucson Dome Light Bulb Size

The Hyundai Tucson dome light utilizes bulb sizes DE3175 and 904 for interior illumination across various production versions. Available specifications for the lighting components span a range from 2005 through 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 Size
2023-2024	DE3175
2021-2022	904
2005-2020	DE3175

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Festoon bulb, 31mm length, end-cap contacts. 12V.	DE3175
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 8W.	904

Other Locations

Additional Notes

The DE3175 is the dominant dome light bulb type across the Hyundai Tucson specification range, appearing in model years 2005-2020 and 2023-2024, with the exception of 2021-2022.
The DE3175 is a festoon-style bulb with a 31mm length and end-cap contacts, operating at 12 volts. The festoon format means the bulb bridges two contact points at either end rather than using a base socket.
The 904 is a miniature wedge bulb in the T10 form factor, rated at 12 volts and 8 watts. The wedge base design uses the glass envelope itself as the contact surface, without a separate metal base.
Both the DE3175 and 904 are ANSI-standardized bulbs for the US and Canadian markets, meaning their specifications conform to a defined industry standard rather than a proprietary format.
The 2021-2022 Hyundai Tucson uses the 904 bulb for the dome light, which is a different form factor from the DE3175 used in surrounding model years. These two bulb types are not interchangeable due to their differing base designs.
The 2023-2024 Tucson returns to the DE3175 specification after the 2021-2022 904 fitment, meaning a DE3175 bulb intended for a 2020 model is also applicable to 2023-2024 units.