What is the low beam headlight bulb size for a 1998 Lincoln Mark VIII?

The 1998 Lincoln Mark VIII uses a N/A 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 Lincoln Mark VIII?

The high beam bulb size for the 1998 Lincoln Mark VIII is 9005.

Why are my 1998 Lincoln Mark VIII headlights dim?

Dim headlights on a 1998 Lincoln Mark VIII can be caused by aging halogen bulbs, which lose brightness over time, or oxidation (cloudiness) on the plastic headlight lenses. Upgrading to a N/A LED conversion kit can provide a significantly brighter and whiter light output.

Which bulb fits the 1998 Lincoln Mark VIII fog light?

The 1998 Lincoln Mark VIII 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 1998 Lincoln Mark VIII single or dual beam?

The 1998 Lincoln Mark VIII 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 Lincoln Mark VIII?

Yes, the 1998 Lincoln Mark VIII comes with standard halogen bulbs from the factory, but they can be upgraded to LED. You will need a N/A LED conversion kit for the low beams.

Did the 1998 Lincoln Mark VIII change headlight bulb sizes from the previous year?

Yes — the 1998 Lincoln Mark VIII uses different bulb sizes than the 1997 model. The 1998 generation introduced this bulb configuration.

Is the 1998 Lincoln Mark VIII the first or last year to use N/A bulbs?

The 1998 Lincoln Mark VIII is the only year in the 1998 generation to use the N/A bulb for the low beam headlight.

How do I change the headlight on a 1998 Lincoln Mark VIII?

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 N/A 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 Lincoln Mark VIII?

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 N/A 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 Lincoln Mark VIII headlights?

A pair of halogen N/A 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 Lincoln Mark VIII?

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 N/A position are available as direct plug-and-play replacements.

The 1998 Lincoln Mark VIII has a unique bulb configuration not shared with adjacent model years.

Fitment Guaranteed for 1998 Lincoln Mark VIII

What Size Bulbs Does a 1998 Lincoln Mark VIII 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 Lincoln Mark VIII Have?

Lighting on the 1998 Lincoln Mark VIII is managed by a total of 12 bulbs, covering everything from primary headlights to signal indicators. It features an extensive lighting system powered by a dual-bulb halogen configuration using separate low beam and 9005 high beam bulbs for precise light distribution.

Can You Put LED Bulbs in a 1998 Lincoln Mark VIII?

Upgrading to LED is one of the most effective ways to modernize your Lincoln's appearance and safety profile. We recommend starting your upgrade with the low beams, as they see the most use. Adding a matching 9005 LED kit later will complete the look and ensure consistent lighting performance.

1998 Lincoln Mark VIII Bulb Size Chart

Position	Bulb Size	Shop
High Beam	9005	Buy 9005 →
Turn Signal Front	3157CK	Buy 3157CK →
Side Marker	168	Buy 168 →
Brake Light	3157CK	Buy 3157CK →
Parking Light	3157CK	Buy 3157CK →
Reverse Light	3156	Buy 3156 →
Turn Signal Rear	3157CK	Buy 3157CK →
Tail Light	3157CK	Buy 3157CK →
License Plate	168	Buy 168 →
Dome Light	906	Buy 906 →
Map Light	168	Buy 168 →
Trunk Light	912	Buy 912 →

How do the 1998 Lincoln Mark VIII's bulbs compare to other years?

The 1998 Lincoln Mark VIII changed bulb sizes from 1997. The previous model year used a different configuration.

This bulb configuration covers the 1998 model years. ← 1997

Finding the best installation guide...

Other Mark VIII Years

1997 1996 1995 1994 1993

More from Lincoln

Aviator Blackwood Capri Continental LS MKC MKS MKT