For the 2003 Hyundai Elantra, the supplied fitment data lists an H1 bulb for the high beam. No low-beam bulb is provided, so verify the low-beam housing and vehicle configuration before ordering a replacement. Fog-light fitment may use either H3 or H3C; check the existing bulb and socket to confirm which version your Elantra requires.
Several exterior lamps use dual-function or application-specific bulbs. The front turn signal and parking light use 2357A, while the rear side marker also uses 2357A. Brake and tail lights use 2357R, and the rear turn signal uses 1156A. The reverse light and center stop light are both listed as 1156.
- Front side marker: 194NA
- License plate: 168 or 917
- Courtesy and trunk: DE3022
- Dome: DE3175
Because no low-beam listing is supplied and fog-light options differ, compare the installed bulbs before purchasing.