Welcome to the ultimate upgrade guide for replacing all the OEM halogen bulbs on your 2017-2019 Kia Optima with LED light bulbs. This guide is only accurate for 2017, 2018, 2019 Kia Optima equipped with OEM halogen bulbs. If your factory OEM bulbs are already LED type, it can't be modified or changed.
We dedicated the time and effort to put together all the OEM bulb sizes and LED bulb options in one easy to read location. The information below is free, and for our visitors. This list is an ongoing project and we reserve the right to make changes at anytime. Use the information below at your own risk. We provide zero warranties for the information we compiled. Why are we saying this? We definitely don’t mean to worry you. We say this because sometimes bulb sizes and kits can differ even within the same make, model, and year. The exact production month can sometimes make a difference in bulb sizes used. That makes it nearly impossible for us to be 100% certain the information below will be correct for your Sentra. We just want you to know there’s always that 1 percent chance it’s wrong, for your truck, for whatever rare reason.
If you notice any changes that need to be made or additions that need to be included, feel free to let us know. It would be greatly appreciated.
We hope you find it useful. Enjoy!
Exterior Light Bulbs
Fog Light Bulb Type: 9006
Front Turn Signal Bulb Type: 1156
Rear Turn Signal Bulb Type: 1156
Reverse Back Up Light Bulb Type: 921
Brake Light Bulb Type: 1157
Front Side Marker Light Bulb Type: 2825
License Plate Light Bulb Type: 168
Interior Light Bulbs
Trunk Light Bulb: 28mm
Dome Light Bulb: 28mm
Map Light Bulb: 28mm