Hyundai Veloster Trunk Bulb Size

The Hyundai Veloster trunk light uses DE3175 and DE3423 bulb sizes for the interior illumination area. Available data for the specified vehicle covers the period from 2012 through 2021.

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	DE3175
2019	DE3175 (From 3/16/2018)
2012-2017	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 DE3423 is a festoon-type bulb operating at 12V with a 41mm length and end-cap contacts, conforming to the ANSI standard for the US and Canada markets. It serves as the trunk bulb across the Hyundai Veloster from 2012-2017.
The DE3175 is also a festoon-type bulb at 12V but with a shorter 31mm length and end-cap contacts, likewise conforming to the ANSI standard for the US and Canada markets. It replaces the DE3423 as the trunk bulb in later production years.
Festoon bulbs make contact through metal caps at each end rather than through a base socket, which is a defining characteristic of both the DE3175 and DE3423 types.
Despite sharing the same festoon form factor, end-cap contact design, and 12V operating voltage, the DE3175 and DE3423 differ in physical length by 10mm, making them non-interchangeable in the trunk housing of the Hyundai Veloster.
The 2019 Hyundai Veloster specifies the DE3175 only for vehicles produced from March 16, 2018 onward, indicating a mid-cycle production change that affects fitment for that model year.
The 2021 Veloster uses the DE3175 without any production date qualifier, while the 2019 model year carries a specific build-date condition for the same bulb, reflecting a transitional period in the specification.