What is the low beam headlight bulb size for a 2018 Toyota 4Runner Fog?

The 2018 Toyota 4Runner Fog 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 2018 Toyota 4Runner Fog?

The high beam bulb size for the 2018 Toyota 4Runner Fog is N/A.

Why are my 2018 Toyota 4Runner Fog headlights dim?

Dim headlights on a 2018 Toyota 4Runner Fog 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 2018 Toyota 4Runner Fog fog light?

The 2018 Toyota 4Runner Fog uses a H16 LED bulb for the fog light position.

Is the 2018 Toyota 4Runner Fog single or dual beam?

The 2018 Toyota 4Runner Fog 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 Toyota 4Runner Fog?

Yes, the 2018 Toyota 4Runner Fog 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.

Does the 2018 Toyota 4Runner Fog have fog lights?

Yes, the 2018 Toyota 4Runner Fog takes a H16 LED bulb for the fog light position.

How do I change the headlight on a 2018 Toyota 4Runner Fog?

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 2018 Toyota 4Runner Fog?

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 2018 Toyota 4Runner Fog 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 2018 Toyota 4Runner Fog?

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.

This vehicle is part of the 2012–2019 Toyota 4Runner Fog generation. All models in this range share identical light bulb sizes.

Fitment Guaranteed for 2018 Toyota 4Runner Fog

What Size Bulbs Does a 2018 Toyota 4Runner Fog 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 2018 Toyota 4Runner Fog Have?

Owners of the 2018 Toyota 4Runner Fog will find a total of 1 lighting elements throughout the vehicle's exterior. It features a standard lighting system powered by a dual-bulb halogen configuration using separate low beam and high beam bulbs for precise light distribution.

Can You Put LED Bulbs in a 2018 Toyota 4Runner Fog?

For a Toyota built for the road and trail, LED upgrades provide the high-contrast lighting needed for better obstacle detection. 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. Don't forget the H16 LED fog lights; switching these to LED can dramatically improve your visibility in adverse weather.

2018 Toyota 4Runner Fog Bulb Size Chart

Position	Bulb Size	Shop
Fog Light	H16 LED	Buy H16 LED →

Installation Guide

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Other 4Runner Fog Years

2019 2017 2016 2015 2014 2013 2012

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