What is the low beam headlight bulb size for a 1998 GMC K1500?

The 1998 GMC K1500 uses a 9006 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 1998 GMC K1500?

The high beam bulb size for the 1998 GMC K1500 is 9005 LED.

Why are my 1998 GMC K1500 headlights dim?

Dim headlights on a 1998 GMC K1500 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 LED conversion kit can provide a significantly brighter and whiter light output.

Which bulb fits the 1998 GMC K1500 fog light?

The 1998 GMC K1500 uses a 880 LED bulb for the fog light position.

Is the 1998 GMC K1500 single or dual beam?

The 1998 GMC K1500 uses a dual bulb headlight system. This means you have separate bulbs for high and low beams.

Can I install LED bulbs on my 1998 GMC K1500?

Yes, the 1998 GMC K1500 comes with standard halogen bulbs from the factory, but they can be upgraded to LED. You will need a 9006 LED LED conversion kit for the low beams.

Does the 1998 GMC K1500 have fog lights?

Yes, the 1998 GMC K1500 takes a 880 LED bulb for the fog light position.

How do I change the headlight on a 1998 GMC K1500?

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 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 1998 GMC K1500?

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 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 1998 GMC K1500 headlights?

A pair of halogen 9006 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 1998 GMC K1500?

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

Fitment Guaranteed for 1998 GMC K1500

What Size Bulbs Does a 1998 GMC K1500 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 1998 GMC K1500 Have?

When it comes to nighttime visibility, the 1998 GMC K1500 relies on an arrangement of 13 specialized bulbs. It features an extensive lighting system powered by a dual-bulb halogen configuration using separate 9006 LED low beam and 9005 LED high beam bulbs for precise light distribution. This model belongs to the late years of the K1500's 1993-1999 production span.

Can You Put LED Bulbs in a 1998 GMC K1500?

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 LED low beams, as they see the most use. Adding a matching 9005 LED LED kit later will complete the look and ensure consistent lighting performance. Don't forget the 880 LED fog lights; switching these to LED can dramatically improve your visibility in adverse weather.

1998 GMC K1500 Bulb Size Chart

Position	Bulb Size	Shop
Low Beam	9006 LED	Buy 9006 LED →
High Beam	9005 LED	Buy 9005 LED →
Fog Light	880 LED	Buy 880 LED →
Brake Light	921 LED	Buy 921 LED →
Side Marker	194 LED	Buy 194 LED →
Turn Signal Front	3157NA LED	Buy 3157NA LED →
Turn Signal Rear	3157 LED	Buy 3157 LED →
Reverse Light	3156	Buy 3156 →
Dome Light	211-2	Buy 211-2 →
License Plate	194	Buy 194 →
Map Light	168 or 561	Buy 168 or 561 →
Parking Light	2357NA	Buy 2357NA →
Trunk Light	921	Buy 921 →