What is the low beam headlight bulb size for a 1990 Hyundai Sonata?

The 1990 Hyundai Sonata uses a 9004 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 1990 Hyundai Sonata?

The high beam bulb size for the 1990 Hyundai Sonata is 37.

Why are my 1990 Hyundai Sonata headlights dim?

Dim headlights on a 1990 Hyundai Sonata can be caused by aging halogen bulbs, which lose brightness over time, or oxidation (cloudiness) on the plastic headlight lenses. Upgrading to a 9004 LED LED conversion kit can provide a significantly brighter and whiter light output.

Which bulb fits the 1990 Hyundai Sonata fog light?

The 1990 Hyundai Sonata uses a LED Fog Light bulb for the fog light position.

Is the 1990 Hyundai Sonata single or dual beam?

The 1990 Hyundai Sonata uses a dual bulb headlight system. This means you have separate bulbs for high and low beams.

Can I install LED bulbs on my 1990 Hyundai Sonata?

Yes, the 1990 Hyundai Sonata comes with standard halogen bulbs from the factory, but they can be upgraded to LED. You will need a 9004 LED LED conversion kit for the low beams.

Does the 1990 Hyundai Sonata have fog lights?

Yes, the 1990 Hyundai Sonata takes a LED Fog Light bulb for the fog light position.

Did the 1990 Hyundai Sonata change headlight bulb sizes from the previous year?

Yes — the 1990 Hyundai Sonata uses different bulb sizes than the 1989 model. The 1990 generation introduced this bulb configuration.

Is the 1990 Hyundai Sonata the first or last year to use 9004 LED bulbs?

The 1990 Hyundai Sonata is the only year in the 1990 generation to use the 9004 LED bulb for the low beam headlight.

How do I change the headlight on a 1990 Hyundai Sonata?

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 9004 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 1990 Hyundai Sonata?

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 9004 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 1990 Hyundai Sonata headlights?

A pair of halogen 9004 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 1990 Hyundai Sonata?

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 9004 LED position are available as direct plug-and-play replacements.

The 1990 Hyundai Sonata has a unique bulb configuration not shared with adjacent model years.

Fitment Guaranteed for 1990 Hyundai Sonata

What Size Bulbs Does a 1990 Hyundai Sonata 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 1990 Hyundai Sonata Have?

When it comes to nighttime visibility, the 1990 Hyundai Sonata relies on an arrangement of 13 specialized bulbs. It features an extensive lighting system powered by a dual-bulb halogen configuration using separate 9004 LED low beam and 37 high beam bulbs for precise light distribution. This model belongs to the early years of the Sonata's 1989-2020 production span.

Can You Put LED Bulbs in a 1990 Hyundai Sonata?

Upgrading to LED is one of the most effective ways to modernize your Hyundai's appearance and safety profile. We recommend starting your upgrade with the 9004 LED low beams, as they see the most use. Adding a matching 37 LED kit later will complete the look and ensure consistent lighting performance. Don't forget the LED Fog Light fog lights; switching these to LED can dramatically improve your visibility in adverse weather.

1990 Hyundai Sonata Bulb Size Chart

Position	Bulb Size	Shop
Low Beam	9004 LED	Buy 9004 LED →
High Beam	37	Buy 37 →
Fog Light	LED Fog Light	Buy LED Fog Light →
Brake Light	37	Buy 37 →
Side Marker	97 LED	Buy 97 LED →
Turn Signal Front	2357NA LED	Buy 2357NA LED →
Turn Signal Rear	1156 LED	Buy 1156 LED →
Reverse Light	1156	Buy 1156 →
Dome Light	DE3175	Buy DE3175 →
License Plate	97	Buy 97 →
Parking Light	2357NA	Buy 2357NA →
Trunk Light	6418	Buy 6418 →
Tail Light	1157	Buy 1157 →

How do the 1990 Hyundai Sonata's bulbs compare to other years?

The 1990 Hyundai Sonata changed bulb sizes from 1989. The previous model year used a different configuration.

The 1992 model switched to a different bulb configuration.

This bulb configuration covers the 1990 model years. ← 1989 1992 →

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Other Sonata Years

2020 2019 2018 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 1989

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