What is the low beam headlight bulb size for a 2018 Hyundai Tucson?

The 2018 Hyundai Tucson uses a HID-D3S LED bulb for the low beam headlights. We recommend upgrading to LED for better visibility.

What is the high beam headlight bulb size for a 2018 Hyundai Tucson?

The high beam bulb size for the 2018 Hyundai Tucson is H7 LED.

Why are my 2018 Hyundai Tucson headlights dim?

Dim headlights on a 2018 Hyundai Tucson can be caused by aging halogen bulbs, which lose brightness over time, or oxidation (cloudiness) on the plastic headlight lenses. Upgrading to a HID-D3S LED LED conversion kit can provide a significantly brighter and whiter light output.

Which bulb fits the 2018 Hyundai Tucson fog light?

The 2018 Hyundai Tucson uses a H8 LED bulb for the fog light position.

Is the 2018 Hyundai Tucson single or dual beam?

The 2018 Hyundai Tucson uses a dual bulb headlight system. This means you have separate bulbs for high and low beams.

Can I install LED bulbs on my 2018 Hyundai Tucson?

Yes, the 2018 Hyundai Tucson comes with standard halogen bulbs from the factory, but they can be upgraded to LED. You will need a HID-D3S LED LED conversion kit for the low beams.

Does the 2018 Hyundai Tucson have fog lights?

Yes, the 2018 Hyundai Tucson takes a H8 LED bulb for the fog light position.

Did the 2018 Hyundai Tucson change headlight bulb sizes from the previous year?

No — the 2018 Hyundai Tucson uses the same bulb sizes as the 2017 model. This configuration has been consistent across the 2017–2018 generation.

Is the 2018 Hyundai Tucson the first or last year to use HID-D3S LED bulbs?

The 2018 Hyundai Tucson is the last year in the 2017–2018 generation to use the HID-D3S LED bulb for the low beam headlight.

How do I change the headlight on a 2018 Hyundai Tucson?

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 HID-D3S LED 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 2018 Hyundai Tucson?

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 HID-D3S LED 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 2018 Hyundai Tucson headlights?

A pair of HID HID-D3S LED bulbs costs $50 to $150. 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 2018 Hyundai Tucson?

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 HID-D3S LED position are available as direct plug-and-play replacements.

The 2018 Hyundai Tucson is the last model year to use this bulb configuration (2017–2018).

Fitment Guaranteed for 2018 Hyundai Tucson

What Size Bulbs Does a 2018 Hyundai Tucson 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

$50 - $150 (HID System)

What Lighting System Does the 2018 Hyundai Tucson Have?

Owners of the 2018 Hyundai Tucson will find a total of 13 lighting elements throughout the vehicle's exterior. It features an extensive lighting system powered by premium factory HID/Xenon technology utilizing D3S projector housings for high-intensity output. This model belongs to the late years of the Tucson's 2005-2022 production span.

Can You Put LED Bulbs in a 2018 Hyundai Tucson?

The 2018 Hyundai Tucson is already equipped with factory D3S HID/Xenon headlights. Since HID technology already provides exceptional brightness, we recommend staying with high-quality OEM replacement bulbs rather than attempting an LED retrofit for the primary headlights. However, the H8 LED fog lights are typically halogen and are excellent candidates for an LED upgrade to match the color temperature of your HID headlights.

2018 Hyundai Tucson Bulb Size Chart

Position	Bulb Size	Shop
Low Beam	HID-D3S LED	Buy HID-D3S LED →
High Beam	H7 LED	Buy H7 LED →
Fog Light	H8 LED	Buy H8 LED →
Brake Light	LED Bulb	Buy LED Bulb →
Side Marker	168 LED	Buy 168 LED →
Turn Signal Front	2357NA LED	Buy 2357NA LED →
Turn Signal Rear	1156NA LED	Buy 1156NA LED →
Reverse Light	921	Buy 921 →
Dome Light	DE3175	Buy DE3175 →
License Plate	168	Buy 168 →
Map Light	175	Buy 175 →
Parking Light	2357NA	Buy 2357NA →
Trunk Light	DE3175	Buy DE3175 →

How do the 2018 Hyundai Tucson's bulbs compare to other years?

The 2018 Hyundai Tucson uses the same bulbs as the 2017 model.

The 2019 model switched to a different bulb configuration.

This bulb configuration covers the 2017–2018 model years. ← 2017 2019 →

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Other Tucson Years

2022 2021 2020 2019 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005

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