What is the low beam headlight bulb size for a 1999 Pontiac Firefly?

The 1999 Pontiac Firefly uses a 9007 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 Pontiac Firefly?

The high beam bulb size for the 1999 Pontiac Firefly is N/A.

Why are my 1999 Pontiac Firefly headlights dim?

Dim headlights on a 1999 Pontiac Firefly can be caused by aging halogen bulbs, which lose brightness over time, or oxidation (cloudiness) on the plastic headlight lenses. Upgrading to a 9007 LED conversion kit can provide a significantly brighter and whiter light output.

Which bulb fits the 1999 Pontiac Firefly fog light?

The 1999 Pontiac Firefly 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 1999 Pontiac Firefly single or dual beam?

The 1999 Pontiac Firefly 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 Pontiac Firefly?

Yes, the 1999 Pontiac Firefly comes with standard halogen bulbs from the factory, but they can be upgraded to LED. You will need a 9007 LED conversion kit for the low beams.

Did the 1999 Pontiac Firefly change headlight bulb sizes from the previous year?

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

Is the 1999 Pontiac Firefly the first or last year to use 9007 bulbs?

The 1999 Pontiac Firefly is the only year in the 1999 generation to use the 9007 bulb for the low beam headlight.

How do I change the headlight on a 1999 Pontiac Firefly?

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 9007 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 Pontiac Firefly?

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 9007 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 Pontiac Firefly headlights?

A pair of halogen 9007 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 Pontiac Firefly?

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 9007 position are available as direct plug-and-play replacements.

The 1999 Pontiac Firefly has a unique bulb configuration not shared with adjacent model years.

Fitment Guaranteed for 1999 Pontiac Firefly

What Size Bulbs Does a 1999 Pontiac Firefly 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 Pontiac Firefly Have?

Owners of the 1999 Pontiac Firefly will find a total of 11 lighting elements throughout the vehicle's exterior. It features an extensive lighting system powered by a dual-bulb halogen configuration using separate 9007 low beam and high beam bulbs for precise light distribution. This model belongs to the late years of the Firefly's 1985-2000 production span.

Can You Put LED Bulbs in a 1999 Pontiac Firefly?

Upgrading to LED is one of the most effective ways to modernize your Pontiac's appearance and safety profile. We recommend starting your upgrade with the 9007 low beams, as they see the most use. Adding a matching LED kit later will complete the look and ensure consistent lighting performance.

1999 Pontiac Firefly Bulb Size Chart

Position	Bulb Size	Shop
Turn Signal Front	1157A	Buy 1157A →
Side Marker	168	Buy 168 →
Low Beam	9007	Buy 9007 →
License Plate	168	Buy 168 →
Brake Light	1157	Buy 1157 →
Tail Light	1157	Buy 1157 →
Reverse Light	1156	Buy 1156 →
Turn Signal Rear	1156	Buy 1156 →
Parking Light	1157A	Buy 1157A →
Trunk Light	194	Buy 194 →
Dome Light	DE3022	Buy DE3022 →