Kia K4 headlight bulb size by year
The low beam, high beam and fog light bulbs for every Kia K4 from 2025–2026. Pick your year to jump straight to it. Each answer links to the page in Kia’s owner’s manual it came from.
Kia K4 bulb sizes at a glance
| Years | Low beam | High beam |
|---|---|---|
| 2025–2026 | LED | LED |
Where a year lists more than one bulb, it depends on trim or headlight type; see that year’s section below.
2025–2026 Kia K4 headlight bulbs
| Light | Bulb | Notes |
|---|---|---|
| Low beam | LED | LED unit |
| High beam | LED | LED unit |
LED headlights are usually serviced as a complete lamp assembly rather than a separate bulb; a dealer or parts counter can quote the assembly for your trim.
Where this comes from (2 sources)
Always double-check the size printed on the old bulb’s base before you buy. See how we source our data. More Kia models.