What is the low beam headlight bulb size for a 2021 Kia K5?

The 2021 Kia K5 uses a N/A bulb for the low beam headlights. We recommend upgrading to LED for better visibility.

What is the high beam headlight bulb size for a 2021 Kia K5?

The high beam bulb size for the 2021 Kia K5 is N/A.

Why are my 2021 Kia K5 headlights dim?

Dim headlights on a 2021 Kia K5 can be caused by aging halogen bulbs, which lose brightness over time, or oxidation (cloudiness) on the plastic headlight lenses. Upgrading to a N/A LED conversion kit can provide a significantly brighter and whiter light output.

Which bulb fits the 2021 Kia K5 fog light?

The 2021 Kia K5 typically does not come with factory fog lights in all trim levels. If your vehicle is equipped with them, check the manual as sizes can vary by trim.

Is the 2021 Kia K5 single or dual beam?

The 2021 Kia K5 uses a dual bulb headlight system. This means you have separate bulbs for high and low beams.

Can I install LED bulbs on my 2021 Kia K5?

Yes, the 2021 Kia K5 comes with standard halogen bulbs from the factory, but they can be upgraded to LED. You will need a N/A LED conversion kit for the low beams.

How do I change the headlight on a 2021 Kia K5?

Turn off the vehicle and open the hood. Locate the headlight assembly from behind, remove the dust cover or retaining clip, disconnect the wiring harness, twist the old N/A bulb counter-clockwise to remove it, then insert the new bulb and reassemble. The whole process typically takes 10 to 30 minutes per side depending on accessibility.

Are LED headlights legal for a 2021 Kia K5?

LED bulbs used off-road or in auxiliary lights are legal everywhere. For on-road headlight use, legality varies by state. Many states allow LED retrofits as long as the beam pattern meets DOT standards. For the best legal compliance, choose a DOT-approved N/A LED kit that is designed as a direct replacement and produces a proper cutoff pattern without excessive glare.

How much does it cost to replace 2021 Kia K5 headlights?

A pair of halogen N/A bulbs costs $15 to $40, while LED conversion kits run $25 to $60 per pair. If you have a shop do the work, expect an additional $20 to $50 in labor per bulb. Replacing them yourself at home saves the labor cost and usually takes under 30 minutes.

What is the difference between halogen and LED for a 2021 Kia K5?

Halogen bulbs produce a warm yellow light (around 3200K), last 500 to 1000 hours, and draw more power. LED bulbs emit a brighter white light (5000-6000K), last 25,000+ hours, and use less energy. LED upgrades for the N/A position are available as direct plug-and-play replacements.

The 2021 Kia K5 has a unique bulb configuration not shared with adjacent model years.

Fitment Guaranteed for 2021 Kia K5

What Size Bulbs Does a 2021 Kia K5 Use?

Correct headlight, fog light, and tail light bulb sizes. Sourced from OEM catalog data.

Installation Difficulty

Moderate (Dust covers often present)

Est. Replacement Cost

$15 - $40 (Halogen) / $30+ (LED)

What Lighting System Does the 2021 Kia K5 Have?

The 2021 Kia K5 utilizes a refined lighting configuration featuring 8 distinct bulb positions. It features a comprehensive lighting system powered by a dual-bulb halogen configuration using separate low beam and high beam bulbs for precise light distribution. This model belongs to the early years of the K5's 2021-2022 production span.

Can You Put LED Bulbs in a 2021 Kia K5?

Upgrading to LED is one of the most effective ways to modernize your Kia's appearance and safety profile. We recommend starting your upgrade with the low beams, as they see the most use. Adding a matching LED kit later will complete the look and ensure consistent lighting performance.

2021 Kia K5 Bulb Size Chart

Position	Bulb Size	Shop
Turn Signal Front	3157NA	Buy 3157NA →
Daytime Running	H13	Buy H13 →
Side Marker	194	Buy 194 →
Tail Light	3157	Buy 3157 →
Turn Signal Rear	3156NA	Buy 3156NA →
Parking Light	3157NA	Buy 3157NA →
Reverse Light	921	Buy 921 →
Brake Light	921	Buy 921 →

How do the 2021 Kia K5's bulbs compare to other years?

The 2022 model switched to a different bulb configuration.

This bulb configuration covers the 2021 model years. 2022 →

Finding the best installation guide...

Other K5 Years

2022