What is the low beam headlight bulb size for a 2003 Acura EL?

The 2003 Acura EL uses a H4 bulb for the low beam headlights. We recommend upgrading to LED for better visibility.

What is the high beam headlight bulb size for a 2003 Acura EL?

The high beam bulb size for the 2003 Acura EL is N/A.

Why are my 2003 Acura EL headlights dim?

Dim headlights on a 2003 Acura EL can be caused by aging halogen bulbs, which lose brightness over time, or oxidation (cloudiness) on the plastic headlight lenses. Upgrading to a H4 LED conversion kit can provide a significantly brighter and whiter light output.

Which bulb fits the 2003 Acura EL fog light?

The 2003 Acura EL typically does not come with factory fog lights in all trim levels. If your vehicle is equipped with them, check the manual as sizes can vary by trim.

Is the 2003 Acura EL single or dual beam?

The 2003 Acura EL uses a dual bulb headlight system. This means you have separate bulbs for high and low beams.

Can I install LED bulbs on my 2003 Acura EL?

Yes, the 2003 Acura EL comes with standard halogen bulbs from the factory, but they can be upgraded to LED. You will need a H4 LED conversion kit for the low beams.

Did the 2003 Acura EL change headlight bulb sizes from the previous year?

Yes — the 2003 Acura EL uses different bulb sizes than the 2002 model. The 2003 generation introduced this bulb configuration.

Is the 2003 Acura EL the first or last year to use H4 bulbs?

The 2003 Acura EL is the only year in the 2003 generation to use the H4 bulb for the low beam headlight.

How do I change the headlight on a 2003 Acura EL?

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 H4 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 2003 Acura EL?

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 H4 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 2003 Acura EL headlights?

A pair of halogen H4 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 2003 Acura EL?

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 H4 position are available as direct plug-and-play replacements.

The 2003 Acura EL has a unique bulb configuration not shared with adjacent model years.

Fitment Guaranteed for 2003 Acura EL

What Size Bulbs Does a 2003 Acura EL Use?

Correct headlight, fog light, and tail light bulb sizes. Sourced from OEM catalog data.

Installation Difficulty

Easy (Plug and Play)

Est. Replacement Cost

$15 - $40 (Halogen) / $30+ (LED)

What Lighting System Does the 2003 Acura EL Have?

Lighting on the 2003 Acura EL is managed by a total of 12 bulbs, covering everything from primary headlights to signal indicators. It features an extensive lighting system powered by a dual-bulb halogen configuration using separate H4 low beam and high beam bulbs for precise light distribution. This model belongs to the late years of the EL's 1997-2005 production span.

Can You Put LED Bulbs in a 2003 Acura EL?

Upgrading to LED is one of the most effective ways to modernize your Acura's appearance and safety profile. We recommend starting your upgrade with the H4 low beams, as they see the most use. Adding a matching LED kit later will complete the look and ensure consistent lighting performance.

2003 Acura EL Bulb Size Chart

Position	Bulb Size	Shop
Side Marker	7443CK	Buy 7443CK →
Turn Signal Front	7443CK	Buy 7443CK →
Low Beam	H4	Buy H4 →
Reverse Light	7440	Buy 7440 →
Brake Light	7440	Buy 7440 →
Tail Light	7443CK	Buy 7443CK →
Turn Signal Rear	7440	Buy 7440 →
Parking Light	168	Buy 168 →
License Plate	168	Buy 168 →
Map Light	DE3175	Buy DE3175 →
Trunk Light	168	Buy 168 →
Dome Light	DE3175	Buy DE3175 →

How do the 2003 Acura EL's bulbs compare to other years?

The 2003 Acura EL changed bulb sizes from 2002. The previous model year used a different configuration.

The 2004 model switched to a different bulb configuration.

This bulb configuration covers the 2003 model years. ← 2002 2004 →

Finding the best installation guide...

Other EL Years

2005 2004 2002 2001 2000 1999 1998 1997

Other Vehicles That Use H4 Bulbs

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H4 Comparisons

9003 vs H4 H4 vs H7 H4 vs HB2