What is the low beam headlight bulb size for a 1998 Cadillac Deville?

The 1998 Cadillac Deville 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 Cadillac Deville?

The high beam bulb size for the 1998 Cadillac Deville is 161.

Why are my 1998 Cadillac Deville headlights dim?

Dim headlights on a 1998 Cadillac Deville 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 Cadillac Deville fog light?

The 1998 Cadillac Deville uses a 893 LED bulb for the fog light position.

Is the 1998 Cadillac Deville single or dual beam?

The 1998 Cadillac Deville 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 Cadillac Deville?

Yes, the 1998 Cadillac Deville 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 Cadillac Deville have fog lights?

Yes, the 1998 Cadillac Deville takes a 893 LED bulb for the fog light position.

How do I change the headlight on a 1998 Cadillac Deville?

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 Cadillac Deville?

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 Cadillac Deville 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 Cadillac Deville?

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 Cadillac Deville

What Size Bulbs Does a 1998 Cadillac Deville 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 Cadillac Deville Have?

Owners of the 1998 Cadillac Deville will find a total of 12 lighting elements throughout the vehicle's exterior. It features an extensive lighting system powered by a dual-bulb halogen configuration using separate 9006 LED low beam and 161 high beam bulbs for precise light distribution. This model belongs to the mid years of the Deville's 1994-2005 production span.

Can You Put LED Bulbs in a 1998 Cadillac Deville?

Upgrading to LED is one of the most effective ways to modernize your Cadillac's appearance and safety profile. We recommend starting your upgrade with the 9006 LED low beams, as they see the most use. Adding a matching 161 LED kit later will complete the look and ensure consistent lighting performance. Don't forget the 893 LED fog lights; switching these to LED can dramatically improve your visibility in adverse weather.

1998 Cadillac Deville Bulb Size Chart

Position	Bulb Size	Shop
Low Beam	9006 LED	Buy 9006 LED →
High Beam	161	Buy 161 →
Fog Light	893 LED	Buy 893 LED →
Brake Light	194	Buy 194 →
Side Marker	194 LED	Buy 194 LED →
Turn Signal Front	3157NA LED	Buy 3157NA LED →
Turn Signal Rear	3157 LED	Buy 3157 LED →
License Plate	194	Buy 194 →
Map Light	168	Buy 168 →
Parking Light	3157NA	Buy 3157NA →
Reverse Light	2057	Buy 2057 →
Trunk Light	561	Buy 561 →

Installation Guide

Open in YouTube →

Video suggestion: Installation GuideBy YouTube

Other Deville Years

2005 2004 2003 2002 2001 2000 1999 1997 1996 1995 1994

More from Cadillac

ATS Allante Brougham CT6 CTS Catera DTS ELR

Other Vehicles That Use 9006 LED Bulbs

2020 Dodge Journey 2019 GMC Savana 2500 HD 2019 GMC Savana 3500 HD 2018 Chevrolet Express 2500 2015 Honda Civic 2015 Nissan Armada