For the 2021 Hyundai Kona, both the low-beam and high-beam headlights use H7 bulbs. The supplied fitment data does not indicate a separate bulb size for different headlight styles or configurations, so verify the existing bulb and housing before ordering.
- Fog lights use H8 bulbs.
- Front turn signals use 2357 bulbs.
- Rear turn signals use P21W bulbs.
- Brake-light fitment is listed as either 1157 or 12961, while the tail light is listed as 1157. Check the installed assembly to confirm which brake-light bulb applies.
- Cornering lights use H7 bulbs.
- License-plate and rear side-marker lights use 12961 bulbs.
For the interior, courtesy, dome, and map lights use 912 bulbs. The glove-box light uses 6418, and the trunk light uses DE3175. No reverse-light bulb fitment is listed in the supplied data.