What is the low beam headlight bulb size for a 1999 GMC Yukon?

The 1999 GMC Yukon uses a 9006 bulb for the low beam headlights. We recommend upgrading to LED for better visibility.

What is the high beam headlight bulb size for a 1999 GMC Yukon?

The high beam bulb size for the 1999 GMC Yukon is 9005.

Why are my 1999 GMC Yukon headlights dim?

Dim headlights on a 1999 GMC Yukon can be caused by aging halogen bulbs, which lose brightness over time, or oxidation (cloudiness) on the plastic headlight lenses. Upgrading to a 9006 LED conversion kit can provide a significantly brighter and whiter light output.

Which bulb fits the 1999 GMC Yukon fog light?

The 1999 GMC Yukon uses a 894 bulb for the fog light position.

Is the 1999 GMC Yukon single or dual beam?

The 1999 GMC Yukon uses a dual bulb headlight system. This means you have separate bulbs for high and low beams.

Can I install LED bulbs on my 1999 GMC Yukon?

Yes, the 1999 GMC Yukon comes with standard halogen bulbs from the factory, but they can be upgraded to LED. You will need a 9006 LED conversion kit for the low beams.

Does the 1999 GMC Yukon have fog lights?

Yes, the 1999 GMC Yukon takes a 894 bulb for the fog light position.

Did the 1999 GMC Yukon change headlight bulb sizes from the previous year?

Yes — the 1999 GMC Yukon uses different bulb sizes than the 1998 model. The 1999 generation introduced this bulb configuration.

Is the 1999 GMC Yukon the first or last year to use 9006 bulbs?

The 1999 GMC Yukon is the only year in the 1999 generation to use the 9006 bulb for the low beam headlight.

How do I change the headlight on a 1999 GMC Yukon?

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 9006 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 1999 GMC Yukon?

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 9006 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 1999 GMC Yukon headlights?

A pair of halogen 9006 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 1999 GMC Yukon?

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 9006 position are available as direct plug-and-play replacements.

The 1999 GMC Yukon has a unique bulb configuration not shared with adjacent model years.

Fitment Guaranteed for 1999 GMC Yukon

What Size Bulbs Does a 1999 GMC Yukon 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 1999 GMC Yukon Have?

Owners of the 1999 GMC Yukon will find a total of 10 lighting elements throughout the vehicle's exterior. It features a comprehensive lighting system powered by a dual-bulb halogen configuration using separate 9006 low beam and 9005 high beam bulbs for precise light distribution. This model belongs to the early years of the Yukon's 1992-2020 production span.

Can You Put LED Bulbs in a 1999 GMC Yukon?

For a GMC built for the road and trail, LED upgrades provide the high-contrast lighting needed for better obstacle detection. We recommend starting your upgrade with the 9006 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 894 fog lights; switching these to LED can dramatically improve your visibility in adverse weather.

1999 GMC Yukon Bulb Size Chart

Position	Bulb Size	Shop
Side Marker	194	Buy 194 →
Low Beam	9006	Buy 9006 →
Fog Light	894	Buy 894 →
High Beam	9005	Buy 9005 →
Brake Light	3057	Buy 3057 →
Turn Signal Rear	3157CK	Buy 3157CK →
Tail Light	3157CK	Buy 3157CK →
Reverse Light	3156	Buy 3156 →
License Plate	194	Buy 194 →
Map Light	168	Buy 168 →

How do the 1999 GMC Yukon's bulbs compare to other years?

The 1999 GMC Yukon changed bulb sizes from 1998. The previous model year used a different configuration.

The 2000 model switched to a different bulb configuration.

This bulb configuration covers the 1999 model years. ← 1998 2000 →

Finding the best installation guide...

Other Yukon Years

2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1998 1997 1996 1995 1994 1993 1992

Other Vehicles That Use 9006 Bulbs

2017 Mitsubishi Lancer 2016 Chevrolet Express 1500-3500 2015 Chevrolet Express 4500 2014 Dodge Avenger 2014 Mitsubishi Lancer Sedan 2014 Mitsubishi Lancer Sportback

9006 Comparisons

9005 vs 9006 9006 vs H11 9006 vs HB4