What is the low beam headlight bulb size for a 2001 Infiniti G20?

The 2001 Infiniti G20 uses a 9003 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 2001 Infiniti G20?

The high beam bulb size for the 2001 Infiniti G20 is 9003 LED.

Why are my 2001 Infiniti G20 headlights dim?

Dim headlights on a 2001 Infiniti G20 can be caused by aging halogen bulbs, which lose brightness over time, or oxidation (cloudiness) on the plastic headlight lenses. Upgrading to a 9003 LED LED conversion kit can provide a significantly brighter and whiter light output.

Which bulb fits the 2001 Infiniti G20 fog light?

The 2001 Infiniti G20 uses a LED Fog Light bulb for the fog light position.

Is the 2001 Infiniti G20 single or dual beam?

The 2001 Infiniti G20 uses a single bulb (dual filament) headlight system. This means one bulb controls both high and low beams.

Can I install LED bulbs on my 2001 Infiniti G20?

Yes, the 2001 Infiniti G20 comes with standard halogen bulbs from the factory, but they can be upgraded to LED. You will need a 9003 LED LED conversion kit for the low beams.

Does the 2001 Infiniti G20 have fog lights?

Yes, the 2001 Infiniti G20 takes a LED Fog Light bulb for the fog light position.

How do I change the headlight on a 2001 Infiniti G20?

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 9003 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 2001 Infiniti G20?

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 9003 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 2001 Infiniti G20 headlights?

A pair of halogen 9003 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 2001 Infiniti G20?

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 9003 LED position are available as direct plug-and-play replacements.

This vehicle is part of the 1999–2002 Infiniti G20 generation. All models in this range share identical light bulb sizes.

Fitment Guaranteed for 2001 Infiniti G20

What Size Bulbs Does a 2001 Infiniti G20 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 2001 Infiniti G20 Have?

Lighting on the 2001 Infiniti G20 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 halogen-based setup where a single 9003 LED dual-filament bulb handles both low and high beam duties within the same reflector. This model belongs to the mid years of the G20's 1999-2002 production span.

Can You Put LED Bulbs in a 2001 Infiniti G20?

Upgrading to LED is one of the most effective ways to modernize your Infiniti's appearance and safety profile. Since your G20 uses a single 9003 LED bulb for both high and low beams, ensure your chosen LED kit is "dual-beam" compatible. This allows the LED circuitry to mimic the two-filament design of the original halogen bulb. Don't forget the LED Fog Light fog lights; switching these to LED can dramatically improve your visibility in adverse weather.

2001 Infiniti G20 Bulb Size Chart

Position	Bulb Size	Shop
Low Beam	9003 LED	Buy 9003 LED →
High Beam	9003 LED	Buy 9003 LED →
Fog Light	LED Fog Light	Buy LED Fog Light →
Brake Light	7440 LED	Buy 7440 LED →
Side Marker	194 LED	Buy 194 LED →
Turn Signal Front	7440 LED	Buy 7440 LED →
Turn Signal Rear	7440 LED	Buy 7440 LED →
Dome Light	DE3175	Buy DE3175 →
License Plate	168	Buy 168 →
Parking Light	168	Buy 168 →
Reverse Light	921	Buy 921 →
Trunk Light	158	Buy 158 →

Installation Guide

Open in YouTube →

Video suggestion: Installation GuideBy YouTube

Other G20 Years

2002 2000 1999

More from Infiniti

EX35 EX37 FX35 FX37 FX45 FX50 G25 G35

Other Vehicles That Use 9003 LED Bulbs

2023 Kia Rio 2021 Toyota Tundra 2020 Honda Fit 2019 MINI Cooper 2019 Nissan Micra 2019 Nissan Versa