2004 Kia Optima Bulb Size
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Bulbs Chart
2004 Kia Optima Center High Mount Stop Light Bulb (921)
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Best Choice
Replace your standard car lights with our robust Philips Vision LEDs that deliver dynamic lighting for your vehicle, both inside and out. The innovative design and unmatched performance of Philips Vision LEDs are available for brake and taillights, backup lights, dome lights, and license plate lights. These bulbs are covered
Philips 12789LPB2 Bright White Vision
LED Lights
2004 Kia Optima License Plate Light Bulb (168)
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Premium Pick
The Xtreme White Plus Series of high output replacement bulbs give drivers better color recognition, depth perception, and improved contrast over stock halogen bulbs, all while meeting DOT specification. Xtreme White Plus bulbs feature a crisp white light output that allows for better road illumination, while a blue top coatPIAA Xtreme White Plus High Performance
Halogen Lights
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For Car Dome, Map Door, Courtesy, License Plate Lights
No polarity no flip: it is truly no polarity, can light on two sides, no need more modification or flip, plug and play, easy install within 5 minutes.Marsauto LED Light Bulb 6000K Replacement Bulbs
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Inexpensive But Reliable
Design. The 194 HP3 LED bulb is a compact, simple LED replacement with proven performance. The single diffused optic spreads light in the original lamp, for OEM-style appearance and function. With its dual-lead contacts, it will fit snugly in the socket, and its light weight means it won't vibrate loose over...Diode Dynamics HP3 LED Bulbs
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Extremely Bright
Product benefits: Non-polarity design, 500% brighter than original halogen bulb, aircraft grade aluminum heat sink with Low temperature for Longer life span & Low Power Consumption (Up to 50,000 Hours Service Life).iBrightstar T10 168 LED Bulbs
LED Lights
2004 Kia Optima Back Up Reverse Light Bulb (921)
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Best Choice
Replace your standard car lights with our robust Philips Vision LEDs that deliver dynamic lighting for your vehicle, both inside and out. The innovative design and unmatched performance of Philips Vision LEDs are available for brake and taillights, backup lights, dome lights, and license plate lights. These bulbs are coveredPhilips 12789LPB2 Bright White Vision
LED Lights
2004 Kia Optima Interior Door Light Bulb (168)
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Premium Pick
The Xtreme White Plus Series of high output replacement bulbs give drivers better color recognition, depth perception, and improved contrast over stock halogen bulbs, all while meeting DOT specification. Xtreme White Plus bulbs feature a crisp white light output that allows for better road illumination, while a blue top coatPIAA Xtreme White Plus High Performance
Halogen Lights
-
For Car Dome, Map Door, Courtesy, License Plate Lights
No polarity no flip: it is truly no polarity, can light on two sides, no need more modification or flip, plug and play, easy install within 5 minutes.Marsauto LED Light Bulb 6000K Replacement Bulbs
-
Inexpensive But Reliable
Design. The 194 HP3 LED bulb is a compact, simple LED replacement with proven performance. The single diffused optic spreads light in the original lamp, for OEM-style appearance and function. With its dual-lead contacts, it will fit snugly in the socket, and its light weight means it won't vibrate loose over...Diode Dynamics HP3 LED Bulbs
-
Extremely Bright
Product benefits: Non-polarity design, 500% brighter than original halogen bulb, aircraft grade aluminum heat sink with Low temperature for Longer life span & Low Power Consumption (Up to 50,000 Hours Service Life).iBrightstar T10 168 LED Bulbs
LED Lights
2004 Kia Optima Headlights
2004 Kia Optima Tail Lights
Kia Optima Bulb Size By Years
Goal: help you quickly find the correct bulb sizes for a 2004 Kia Optima so you avoid guesswork and returns. The practical constraint is that trim and aftermarket parts vary, so the recommended list assumes factory fitment and common replacements. I created this chart from hands-on sourcing and parts tables to reduce that trade-off between convenience and accuracy.
Step by step: identify the lamp (headlight, high beam, fog, turn, brake), check the chart, then confirm by comparing the old bulb markings before purchase. Validation: test the new bulb on the car before final reassembly and note fit and connector compatibility. If a socket or brightness differs, the likely causes are trim-specific fittings or aftermarket adapters; those require matched parts or small modifications.
Wrap up: this page may contain affiliate links, which means I may earn a commission if you buy through them at no extra cost to you. That helps keep these practical charts updated. If you want, I can help confirm a specific bulb code or source vendors.
2004 Kia Optima specs
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