What is the low beam headlight bulb size for a 1999 GMC K1500 Suburban?

The 1999 GMC K1500 Suburban 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 K1500 Suburban?

The high beam bulb size for the 1999 GMC K1500 Suburban is 9005.

Why are my 1999 GMC K1500 Suburban headlights dim?

Dim headlights on a 1999 GMC K1500 Suburban 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 K1500 Suburban fog light?

The 1999 GMC K1500 Suburban uses a 894 bulb for the fog light position.

Is the 1999 GMC K1500 Suburban single or dual beam?

The 1999 GMC K1500 Suburban 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 K1500 Suburban?

Yes, the 1999 GMC K1500 Suburban 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 K1500 Suburban have fog lights?

Yes, the 1999 GMC K1500 Suburban takes a 894 bulb for the fog light position.

Did the 1999 GMC K1500 Suburban change headlight bulb sizes from the previous year?

Yes — the 1999 GMC K1500 Suburban uses different bulb sizes than the 1998 model. The 1999 generation introduced this bulb configuration.

Is the 1999 GMC K1500 Suburban the first or last year to use 9006 bulbs?

The 1999 GMC K1500 Suburban 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 K1500 Suburban?

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 K1500 Suburban?

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 K1500 Suburban 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 K1500 Suburban?

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 K1500 Suburban has a unique bulb configuration not shared with adjacent model years.

Fitment Guaranteed for 1999 GMC K1500 Suburban

What Size Bulbs Does a 1999 GMC K1500 Suburban 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 K1500 Suburban Have?

The 1999 GMC K1500 Suburban utilizes a refined lighting configuration featuring 10 distinct bulb positions. 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.

Can You Put LED Bulbs in a 1999 GMC K1500 Suburban?

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 K1500 Suburban 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 K1500 Suburban's bulbs compare to other years?

The 1999 GMC K1500 Suburban changed bulb sizes from 1998. The previous model year used a different configuration.

This bulb configuration covers the 1999 model years. ← 1998

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Other K1500 Suburban Years

1998 1997 1996 1995 1994 1993 1992 1986 1985 1984 1983 1982 1981 1980 1979

Other Vehicles That Use 9006 Bulbs

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9006 Comparisons

9005 vs 9006 9006 vs H11 9006 vs HB4