Hyundai Elantra Dome Light Bulb Size

Additional Notes

• The Hyundai Elantra dome light uses the DE3175 bulb across the majority of model years covered in these specifications, making it the dominant fitment for this application.
• The DE3175 is a festoon-type bulb rated at 12 volts with a 31mm length and end-cap contacts, conforming to the ANSI standard used in the United States and Canada.
• Festoon bulbs are cylindrical lamps that make electrical contact at both ends of the housing rather than through a base or wedge, which is a defining characteristic of the DE3175, DE3423, and DE3425 types listed here.
• The 2000-1999 Elantra uses the DE3423, a festoon bulb with a 41mm length and end-cap contacts rated at 12 volts, making it physically longer than the DE3175 and therefore not a direct fit for model years specifying the shorter bulb.
• The DE3425 shares the same 41mm length and end-cap contact design as the DE3423 and is also rated at 12 volts, though it carries a distinct ANSI designation and is specified for the 1995-1993 Elantra.
• The length difference between the DE3175 (31mm) and the DE3423 or DE3425 (41mm) is a critical fitment factor, as substituting one for the other risks poor contact or physical incompatibility within the dome light housing.
• The 1992 Elantra shares the DE3175 specification with the 2001-2024 model years, despite the intervening years requiring the longer 41mm festoon types.