Hyundai Tucson Sun Visor Bulb Size

The Hyundai Tucson sun visor requires a DE3423 bulb size for the interior lighting component located within the vehicle cabin. Data for the specific bulb covers the 2016 to 2018 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 Type	Shop
2016-2018	DE3423	Check Price

Bulb Specifications

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

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Additional Notes

The DE3423 is a festoon-type bulb, meaning it is cylindrical in shape with metal end-cap contacts at each end rather than a base socket. It operates at 12 volts and measures 41mm in length, which determines physical fit within the sun visor housing.
The DE3423 designation follows ANSI standards recognized in the United States and Canada, placing it within a defined specification for electrical and physical characteristics used across the North American automotive market.
The Hyundai Tucson uses the DE3423 bulb for the sun visor position across the 2016-2018 model years, indicating a consistent housing design throughout that production period.
Festoon bulbs of the same voltage but different lengths are not interchangeable. A bulb shorter or longer than 41mm will either fail to make contact with the end caps or will not seat correctly within the housing, regardless of voltage rating.