Kia Niro high beam and low beam headlight bulbs both use 9005 bulb size for replacement. The chart covers bulb size specifications across the 2018 to 2023 production range.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Kia Niro uses the 9005 bulb for both high beam and low beam headlights across the 2021-2023 model years, as well as the 2018 model year when equipped with fog lamps.
The 9005 is an ANSI-standardized halogen bulb recognized across the United States and Canada, operating at 12 volts and 65 watts with a single filament.
The single-filament design of the 9005 means it serves one lighting function per bulb, which is why the Kia Niro requires separate 9005 units for the high beam and low beam positions rather than a dual-filament alternative.
The 9005 uses a P20d base, a bayonet-style mount that is not interchangeable with other common base types such as the P22d or PX26d found on H-series bulbs.
The 2018 Kia Niro carries a conditional fitment note, specifying the 9005 for both beam positions only on vehicles equipped with fog lamps, indicating that trim or package configuration affects headlight bulb compatibility for that year.
Because both the high beam and low beam positions share the same 9005 specification across the listed model years, a single bulb type covers both headlight functions on the Kia Niro.