What is the low beam headlight bulb size for a 2021 Subaru WRX?

The 2021 Subaru WRX uses a H11 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 Subaru WRX?

The high beam bulb size for the 2021 Subaru WRX is 9005.

Why are my 2021 Subaru WRX headlights dim?

Dim headlights on a 2021 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 conversion kit can provide a significantly brighter and whiter light output.

Which bulb fits the 2021 Subaru WRX fog light?

The 2021 Subaru WRX uses a H16 bulb for the fog light position.

Is the 2021 Subaru WRX single or dual beam?

The 2021 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 2021 Subaru WRX?

Yes, the 2021 Subaru WRX comes with standard halogen bulbs from the factory, but they can be upgraded to LED. You will need a H11 LED conversion kit for the low beams.

Does the 2021 Subaru WRX have fog lights?

Yes, the 2021 Subaru WRX takes a H16 bulb for the fog light position.

Did the 2021 Subaru WRX change headlight bulb sizes from the previous year?

Yes — the 2021 Subaru WRX uses different bulb sizes than the 2020 model. The 2021 generation introduced this bulb configuration.

Is the 2021 Subaru WRX the first or last year to use H11 bulbs?

The 2021 Subaru WRX is the only year in the 2021 generation to use the H11 bulb for the low beam headlight.

How do I change the headlight on a 2021 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 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 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 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 Subaru WRX headlights?

A pair of halogen H11 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 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 position are available as direct plug-and-play replacements.

The 2021 Subaru WRX has a unique bulb configuration not shared with adjacent model years.

Fitment Guaranteed for 2021 Subaru WRX

What Size Bulbs Does a 2021 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 2021 Subaru WRX Have?

The 2021 Subaru WRX utilizes a refined lighting configuration featuring 7 distinct bulb positions. It features a standard lighting system powered by a dual-bulb halogen configuration using separate H11 low beam and 9005 high beam bulbs for precise light distribution. This model belongs to the late years of the WRX's 2002-2021 production span.

Can You Put LED Bulbs in a 2021 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 low beams, as they see the most use. Adding a matching 9005 LED kit later will complete the look and ensure consistent lighting performance. Don't forget the H16 fog lights; switching these to LED can dramatically improve your visibility in adverse weather.

2021 Subaru WRX Bulb Size Chart

Position	Bulb Size	Shop
Fog Light	H16	Buy H16 →
Side Marker	194	Buy 194 →
High Beam	9005	Buy 9005 →
Low Beam	H11	Buy H11 →
Reverse Light	7440	Buy 7440 →
Brake Light	7440	Buy 7440 →
Turn Signal Rear	7440NA	Buy 7440NA →