What is the low beam headlight bulb size for a 2018 Subaru WRX?

The 2018 Subaru WRX 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 Subaru WRX?

The high beam bulb size for the 2018 Subaru WRX is 9005 LED.

Why are my 2018 Subaru WRX headlights dim?

Dim headlights on a 2018 Subaru WRX 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 Subaru WRX fog light?

The 2018 Subaru WRX uses a H16 LED bulb for the fog light position.

Is the 2018 Subaru WRX single or dual beam?

The 2018 Subaru WRX 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 Subaru WRX?

Yes, the 2018 Subaru WRX 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 Subaru WRX have fog lights?

Yes, the 2018 Subaru WRX takes a H16 LED bulb for the fog light position.

How do I change the headlight on a 2018 Subaru WRX?

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 Subaru WRX?

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 Subaru WRX 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 Subaru WRX?

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.

Fitment Guaranteed for 2018 Subaru WRX

What Size Bulbs Does a 2018 Subaru WRX 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 Subaru WRX Have?

The 2018 Subaru WRX utilizes a refined lighting configuration featuring 13 distinct bulb positions. 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 WRX's 2002-2018 production span.

Can You Put LED Bulbs in a 2018 Subaru WRX?

Upgrading to LED is one of the most effective ways to modernize your Subaru's appearance and safety profile. 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 Subaru WRX 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	High Mount Brake Light	Buy High Mount Brake Light →
Dome Light	DE3175	Buy DE3175 →
Side Marker	168	Buy 168 →
Turn Signal Front	7440NA	Buy 7440NA →
License Plate	168	Buy 168 →
Map Light	DE3175	Buy DE3175 →
Parking Light	168	Buy 168 →
Turn Signal Rear	7440NA	Buy 7440NA →
Reverse Light	921	Buy 921 →
Trunk Light	168	Buy 168 →

Installation Guide

Open in YouTube →

Video suggestion: Installation GuideBy YouTube

Other WRX Years

2007 2006 2005 2004 2003 2002

More from Subaru

B9 Tribeca BRZ Baja Brat Crosstek Forester Impreza Justy

Other Vehicles That Use H11 LED Bulbs

2023 Honda Odyssey 2023 Nissan Maxima 2023 Nissan Murano 2023 Toyota 4Runner 2023 Toyota Tacoma 2022 Ford F-250