The 2014 Kia Optima may use two bulb formats depending on trim: halogen headlights typically require H11 for the low beam and 9005 for the high beam, while higher trims with HID headlights use D3S xenon bulbs for the low beam.
The following guide outlines how to identify which setup your car uses and what bulbs you’ll need for replacements, based on common US-market configurations for this model year.
Halogen headlight option (common on base trims)
If your Optima uses standard halogen headlights, the typical bulb sizes are:
- Low beam: H11
- High beam: 9005
Halogen-equipped 2014 Optimas generally rely on an H11 low beam and a 9005 high beam configuration. If you’re unsure which system your car has, check the owner’s manual or the bulb inside the headlight housing for the exact type.
Xenon/HID headlights (optional on higher trims)
For higher-trim models with HID headlights, the low-beam bulb is typically a D3S xenon bulb paired with a ballast:
- Low beam: D3S
Note that high-beam and the exact wiring can vary by trim and market. Some HID setups in this generation may use different configurations for high beam or may rely on a separate halogen for high beam. Always verify with the owner’s manual or the headlight assembly labeling to ensure you purchase the correct bulb type.
Summary
In short, a 2014 Kia Optima can take H11 low-beam and 9005 high-beam bulbs if it has halogen headlights, or D3S xenon bulbs for the low-beam in HID-equipped models. Always confirm your specific trim and configuration to buy the correct bulbs.


