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.

Did the 1998 Cadillac Deville change headlight bulb sizes from the previous year?

Yes — the 1998 Cadillac Deville uses different bulb sizes than the 1997 model. The 1998–1999 generation introduced this bulb configuration.

Is the 1998 Cadillac Deville the first or last year to use 9006 LED bulbs?

The 1998 Cadillac Deville is the first year in the 1998–1999 generation to use the 9006 LED bulb for the low beam headlight.

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.

The 1998 Cadillac Deville is the first model year to use this bulb configuration (1998–1999).

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 13 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 late years of the Deville's 1958-2005 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 →
Tail Light	3157CK	Buy 3157CK →

How do the 1998 Cadillac Deville's bulbs compare to other years?

The 1998 Cadillac Deville changed bulb sizes from 1997. The previous model year used a different configuration.

The 1999 model continues with the same bulb sizes.

This bulb configuration covers the 1998–1999 model years. ← 1997 1999 →

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Other Deville Years

2005 2004 2003 2002 2001 2000 1999 1997 1996 1995 1994 1993 1990 1989 1988 1987 1986 1985 1983 1982 1981 1980 1979 1978 1977 1976 1975 1974 1973 1972 1971 1970 1969 1968 1967 1966 1965 1964 1963 1962 1961 1960 1959 1958

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