What is the low beam headlight bulb size for a 1991 Land Rover Range Rover?

The 1991 Land Rover Range Rover uses a H4 bulb for the low beam headlights. We recommend upgrading to LED for better visibility.

What is the high beam headlight bulb size for a 1991 Land Rover Range Rover?

The high beam bulb size for the 1991 Land Rover Range Rover is 9005.

Why are my 1991 Land Rover Range Rover headlights dim?

Dim headlights on a 1991 Land Rover Range Rover can be caused by aging halogen bulbs, which lose brightness over time, or oxidation (cloudiness) on the plastic headlight lenses. Upgrading to a H4 LED conversion kit can provide a significantly brighter and whiter light output.

Which bulb fits the 1991 Land Rover Range Rover fog light?

The 1991 Land Rover Range Rover uses a H1 bulb for the fog light position.

Is the 1991 Land Rover Range Rover single or dual beam?

The 1991 Land Rover Range Rover uses a dual bulb headlight system. This means you have separate bulbs for high and low beams.

Can I install LED bulbs on my 1991 Land Rover Range Rover?

Yes, the 1991 Land Rover Range Rover comes with standard halogen bulbs from the factory, but they can be upgraded to LED. You will need a H4 LED conversion kit for the low beams.

Does the 1991 Land Rover Range Rover have fog lights?

Yes, the 1991 Land Rover Range Rover takes a H1 bulb for the fog light position.

Did the 1991 Land Rover Range Rover change headlight bulb sizes from the previous year?

Yes — the 1991 Land Rover Range Rover uses different bulb sizes than the 1990 model. The 1991 generation introduced this bulb configuration.

Is the 1991 Land Rover Range Rover the first or last year to use H4 bulbs?

The 1991 Land Rover Range Rover is the only year in the 1991 generation to use the H4 bulb for the low beam headlight.

How do I change the headlight on a 1991 Land Rover Range Rover?

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 H4 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 1991 Land Rover Range Rover?

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 H4 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 1991 Land Rover Range Rover headlights?

A pair of halogen H4 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 1991 Land Rover Range Rover?

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 H4 position are available as direct plug-and-play replacements.

The 1991 Land-Rover Range Rover has a unique bulb configuration not shared with adjacent model years.

Fitment Guaranteed for 1991 Land-Rover Range Rover

What Size Bulbs Does a 1991 Land-Rover Range Rover 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 1991 Land-Rover Range Rover Have?

When it comes to nighttime visibility, the 1991 Land-Rover Range Rover relies on an arrangement of 8 specialized bulbs. It features a comprehensive lighting system powered by a dual-bulb halogen configuration using separate H4 low beam and 9005 high beam bulbs for precise light distribution.

Can You Put LED Bulbs in a 1991 Land-Rover Range Rover?

Upgrading to LED is one of the most effective ways to modernize your Land-Rover's appearance and safety profile. We recommend starting your upgrade with the H4 low beams, as they see the most use. Adding a matching 9005 LED kit later will complete the look and ensure consistent lighting performance. Don't forget the H1 fog lights; switching these to LED can dramatically improve your visibility in adverse weather.

1991 Land-Rover Range Rover Bulb Size Chart

Position	Bulb Size	Shop
Low Beam	H4	Buy H4 →
Fog Light	H1	Buy H1 →
Side Marker	W5W	Buy W5W →
High Beam	9005	Buy 9005 →
Parking Light	7528	Buy 7528 →
Brake Light	W5W	Buy W5W →
License Plate	W5W	Buy W5W →
Map Light	3893	Buy 3893 →