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

The 2018 Toyota 4Runner uses a H11 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 Toyota 4Runner?

The high beam bulb size for the 2018 Toyota 4Runner is 9005 LED.

Why are my 2018 Toyota 4Runner headlights dim?

Dim headlights on a 2018 Toyota 4Runner can be caused by aging halogen bulbs, which lose brightness over time, or oxidation (cloudiness) on the plastic headlight lenses. Upgrading to a H11 LED LED conversion kit can provide a significantly brighter and whiter light output.

Which bulb fits the 2018 Toyota 4Runner fog light?

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

Is the 2018 Toyota 4Runner single or dual beam?

The 2018 Toyota 4Runner 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?

Yes, the 2018 Toyota 4Runner comes with standard halogen bulbs from the factory, but they can be upgraded to LED. You will need a H11 LED LED conversion kit for the low beams.

Does the 2018 Toyota 4Runner have fog lights?

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

Did the 2018 Toyota 4Runner change headlight bulb sizes from the previous year?

No — the 2018 Toyota 4Runner uses the same bulb sizes as the 2017 model. This configuration has been consistent across the 2016–2021 generation.

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

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 H11 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 Toyota 4Runner?

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 H11 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 Toyota 4Runner headlights?

A pair of halogen H11 LED 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?

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 H11 LED position are available as direct plug-and-play replacements.

The 2018 Toyota 4Runner shares its bulb sizes with the 2016–2021 generation.

Fitment Guaranteed for 2018 Toyota 4Runner

What Size Bulbs Does a 2018 Toyota 4Runner 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 Have?

Owners of the 2018 Toyota 4Runner will find a total of 15 lighting elements throughout the vehicle's exterior. It features an extensive lighting system powered by a dual-bulb halogen configuration using separate H11 LED low beam and 9005 LED high beam bulbs for precise light distribution. This model belongs to the late years of the 4Runner's 1984-2023 production span.

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

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 H11 LED low beams, as they see the most use. Adding a matching 9005 LED 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 Bulb Size Chart

Position	Bulb Size	Shop
Low Beam	H11 LED	Buy H11 LED →
High Beam	9005 LED	Buy 9005 LED →
Fog Light	H16 LED	Buy H16 LED →
Brake Light	LED Bulb	Buy LED Bulb →
Side Marker	168	Buy 168 →
Turn Signal Front	7444NA LED	Buy 7444NA LED →
Turn Signal Rear	7440NA LED	Buy 7440NA LED →
Reverse Light	921	Buy 921 →
Dome Light	DE3175	Buy DE3175 →
License Plate	168	Buy 168 →
Map Light	168	Buy 168 →
Parking Light	7444NA	Buy 7444NA →
Trunk Light	DE3175	Buy DE3175 →
Daytime Running	9005	Buy 9005 →
Door Light	168	Buy 168 →

How do the 2018 Toyota 4Runner's bulbs compare to other years?

The 2018 Toyota 4Runner uses the same bulbs as the 2017 model.

The 2019 model continues with the same bulb sizes.

This bulb configuration covers the 2016–2021 model years. ← 2017 2019 →

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Other 4Runner Years

2023 2022 2021 2020 2019 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984

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