For the 2004 Hyundai Elantra, the supplied fitment data lists an H1 bulb for the high beam. No low-beam bulb is provided in this data, so verify the original bulb before ordering. No projector or non-projector headlight distinction is specified.
Useful exterior lighting details include an 1156 front turn-signal bulb, 1157R brake and tail-light bulbs, and an 1156A rear turn-signal bulb. Front and rear side markers use 168NA bulbs.
- Reverse lights: 921 is listed generally; hatchback models use 1156.
- Center stop light: LED is listed, while sedans may use 1156.
- License plate and parking lights: 168 or 917 options are listed. Sedans also list 6418 for the license plate.
- Interior: DE3175 dome, DE3022 glove-box, 906 map, and 6418 trunk bulbs.
- Ash light: compare the original bulb for the 2721 or 74 option.
Because several applications vary by body style or original equipment, compare the existing bulb where a condition or multiple option is shown.