What is the low beam headlight bulb size for a 1998 Acura TL?

The 1998 Acura TL 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 1998 Acura TL?

The high beam bulb size for the 1998 Acura TL is N/A.

Why are my 1998 Acura TL headlights dim?

Dim headlights on a 1998 Acura TL 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 1998 Acura TL fog light?

The 1998 Acura TL 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 1998 Acura TL single or dual beam?

The 1998 Acura TL uses a dual bulb headlight system. This means you have separate bulbs for high and low beams.

Can I install LED bulbs on my 1998 Acura TL?

Yes, the 1998 Acura TL 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 1998 Acura TL change headlight bulb sizes from the previous year?

Yes — the 1998 Acura TL uses different bulb sizes than the 1997 model. The 1998 generation introduced this bulb configuration.

Is the 1998 Acura TL the first or last year to use H4 bulbs?

The 1998 Acura TL is the only year in the 1998 generation to use the H4 bulb for the low beam headlight.

How do I change the headlight on a 1998 Acura TL?

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 1998 Acura TL?

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 1998 Acura TL 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 1998 Acura TL?

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 1998 Acura TL has a unique bulb configuration not shared with adjacent model years.

Fitment Guaranteed for 1998 Acura TL

What Size Bulbs Does a 1998 Acura TL 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 1998 Acura TL Have?

Owners of the 1998 Acura TL will find a total of 12 lighting elements throughout the vehicle's exterior. 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 early years of the TL's 1995-2014 production span.

Can You Put LED Bulbs in a 1998 Acura TL?

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.

1998 Acura TL Bulb Size Chart

Position	Bulb Size	Shop
Low Beam	H4	Buy H4 →
Turn Signal Front	7440	Buy 7440 →
Side Marker	168	Buy 168 →
Brake Light	7443CK	Buy 7443CK →
Tail Light	7443CK	Buy 7443CK →
Reverse Light	7440	Buy 7440 →
Turn Signal Rear	7440	Buy 7440 →
Parking Light	168	Buy 168 →
Door Light	DE3021	Buy DE3021 →
Map Light	DE3022	Buy DE3022 →
Trunk Light	168	Buy 168 →
Dome Light	DE3175	Buy DE3175 →

How do the 1998 Acura TL's bulbs compare to other years?

The 1998 Acura TL changed bulb sizes from 1997. The previous model year used a different configuration.

The 1999 model switched to a different bulb configuration.

This bulb configuration covers the 1998 model years. ← 1997 1999 →

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Other TL Years

2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1997 1996 1995

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H4 Comparisons

9003 vs H4 H4 vs H7 H4 vs HB2