What is the low beam headlight bulb size for a 1994 GMC Sierra?

The 1994 GMC Sierra 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 1994 GMC Sierra?

The high beam bulb size for the 1994 GMC Sierra is 9005.

Why are my 1994 GMC Sierra headlights dim?

Dim headlights on a 1994 GMC Sierra 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 1994 GMC Sierra fog light?

The 1994 GMC Sierra 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 1994 GMC Sierra single or dual beam?

The 1994 GMC Sierra uses a dual bulb headlight system. This means you have separate bulbs for high and low beams.

Can I install LED bulbs on my 1994 GMC Sierra?

Yes, the 1994 GMC Sierra 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.

Did the 1994 GMC Sierra change headlight bulb sizes from the previous year?

No — the 1994 GMC Sierra uses the same bulb sizes as the 1993 model. This configuration has been consistent across the 1993–1995 generation.

How do I change the headlight on a 1994 GMC Sierra?

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 1994 GMC Sierra?

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 1994 GMC Sierra 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 1994 GMC Sierra?

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 1994 GMC Sierra shares its bulb sizes with the 1993–1995 generation.

Fitment Guaranteed for 1994 GMC Sierra

What Size Bulbs Does a 1994 GMC Sierra 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 1994 GMC Sierra Have?

The 1994 GMC Sierra utilizes a refined lighting configuration featuring 9 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. This model belongs to the early years of the Sierra's 1992-2015 production span.

Can You Put LED Bulbs in a 1994 GMC Sierra?

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.

1994 GMC Sierra Bulb Size Chart

Position	Bulb Size	Shop
Side Marker	194	Buy 194 →
Low Beam	9006	Buy 9006 →
High Beam	9005	Buy 9005 →
Reverse Light	1156	Buy 1156 →
Brake Light	3057	Buy 3057 →
Turn Signal Rear	3057	Buy 3057 →
Tail Light	3057	Buy 3057 →
License Plate	194	Buy 194 →
Map Light	168	Buy 168 →

How do the 1994 GMC Sierra's bulbs compare to other years?

The 1994 GMC Sierra uses the same bulbs as the 1993 model.

The 1995 model continues with the same bulb sizes.

This bulb configuration covers the 1993–1995 model years. ← 1993 1995 →

Finding the best installation guide...

Other Sierra Years

2015 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 1998 1997 1996 1995 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