What is the low beam headlight bulb size for a 2003 Pontiac Montana?

The 2003 Pontiac Montana uses a 9004 bulb for the low beam headlights. We recommend upgrading to LED for better visibility.

What is the high beam headlight bulb size for a 2003 Pontiac Montana?

The high beam bulb size for the 2003 Pontiac Montana is N/A.

Why are my 2003 Pontiac Montana headlights dim?

Dim headlights on a 2003 Pontiac Montana can be caused by aging halogen bulbs, which lose brightness over time, or oxidation (cloudiness) on the plastic headlight lenses. Upgrading to a 9004 LED conversion kit can provide a significantly brighter and whiter light output.

Which bulb fits the 2003 Pontiac Montana fog light?

The 2003 Pontiac Montana uses a 880 bulb for the fog light position.

Is the 2003 Pontiac Montana single or dual beam?

The 2003 Pontiac Montana uses a dual bulb headlight system. This means you have separate bulbs for high and low beams.

Can I install LED bulbs on my 2003 Pontiac Montana?

Yes, the 2003 Pontiac Montana comes with standard halogen bulbs from the factory, but they can be upgraded to LED. You will need a 9004 LED conversion kit for the low beams.

Does the 2003 Pontiac Montana have fog lights?

Yes, the 2003 Pontiac Montana takes a 880 bulb for the fog light position.

Did the 2003 Pontiac Montana change headlight bulb sizes from the previous year?

Yes — the 2003 Pontiac Montana uses different bulb sizes than the 2002 model. The 2003 generation introduced this bulb configuration.

Is the 2003 Pontiac Montana the first or last year to use 9004 bulbs?

The 2003 Pontiac Montana is the only year in the 2003 generation to use the 9004 bulb for the low beam headlight.

How do I change the headlight on a 2003 Pontiac Montana?

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 9004 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 2003 Pontiac Montana?

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 9004 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 2003 Pontiac Montana headlights?

A pair of halogen 9004 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 2003 Pontiac Montana?

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 9004 position are available as direct plug-and-play replacements.

The 2003 Pontiac Montana has a unique bulb configuration not shared with adjacent model years.

Fitment Guaranteed for 2003 Pontiac Montana

What Size Bulbs Does a 2003 Pontiac Montana 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 2003 Pontiac Montana Have?

When it comes to nighttime visibility, the 2003 Pontiac Montana relies on an arrangement of 12 specialized bulbs. It features an extensive lighting system powered by a dual-bulb halogen configuration using separate 9004 low beam and high beam bulbs for precise light distribution. This model belongs to the mid years of the Montana's 1999-2009 production span.

Can You Put LED Bulbs in a 2003 Pontiac Montana?

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 9004 low beams, as they see the most use. Adding a matching LED kit later will complete the look and ensure consistent lighting performance. Don't forget the 880 fog lights; switching these to LED can dramatically improve your visibility in adverse weather.

2003 Pontiac Montana Bulb Size Chart

Position	Bulb Size	Shop
Daytime Running	3157NA	Buy 3157NA →
Turn Signal Front	3157CK	Buy 3157CK →
Fog Light	880	Buy 880 →
Side Marker	194	Buy 194 →
Low Beam	9004	Buy 9004 →
Tail Light	3057	Buy 3057 →
Reverse Light	3156	Buy 3156 →
Turn Signal Rear	3156	Buy 3156 →
Parking Light	3157CK	Buy 3157CK →
License Plate	168	Buy 168 →
Brake Light	3157CK	Buy 3157CK →
Map Light	168	Buy 168 →

How do the 2003 Pontiac Montana's bulbs compare to other years?

The 2003 Pontiac Montana changed bulb sizes from 2002. The previous model year used a different configuration.

The 2004 model switched to a different bulb configuration.

This bulb configuration covers the 2003 model years. ← 2002 2004 →

Finding the best installation guide...

Other Montana Years

2009 2008 2007 2006 2005 2004 2002 2001 2000 1999

More from Pontiac

6000 6000 STE Acadian Astre Aztek Beaumont Bonneville Catalina

Other Vehicles That Use 9004 Bulbs

2004 Oldsmobile Silhouette 2003 Dodge Ram Van 2003 Dodge Wagon 2002 Mercedes-Benz SL-class 2002 Mercedes-Benz SL500 2002 Mercedes-Benz SL600