What is the low beam headlight bulb size for a 2003 Land Rover Discovery?

The 2003 Land Rover Discovery uses a H7 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 2003 Land Rover Discovery?

The high beam bulb size for the 2003 Land Rover Discovery is H7 LED.

Why are my 2003 Land Rover Discovery headlights dim?

Dim headlights on a 2003 Land Rover Discovery can be caused by aging halogen bulbs, which lose brightness over time, or oxidation (cloudiness) on the plastic headlight lenses. Upgrading to a H7 LED LED conversion kit can provide a significantly brighter and whiter light output.

Which bulb fits the 2003 Land Rover Discovery fog light?

The 2003 Land Rover Discovery uses a H11 LED bulb for the fog light position.

Is the 2003 Land Rover Discovery single or dual beam?

The 2003 Land Rover Discovery uses a single bulb (dual filament) headlight system. This means one bulb controls both high and low beams.

Can I install LED bulbs on my 2003 Land Rover Discovery?

Yes, the 2003 Land Rover Discovery comes with standard halogen bulbs from the factory, but they can be upgraded to LED. You will need a H7 LED LED conversion kit for the low beams.

Does the 2003 Land Rover Discovery have fog lights?

Yes, the 2003 Land Rover Discovery takes a H11 LED bulb for the fog light position.

Did the 2003 Land Rover Discovery change headlight bulb sizes from the previous year?

Yes — the 2003 Land Rover Discovery uses different bulb sizes than the 2002 model. The 2003–2004 generation introduced this bulb configuration.

Is the 2003 Land Rover Discovery the first or last year to use H7 LED bulbs?

The 2003 Land Rover Discovery is the first year in the 2003–2004 generation to use the H7 LED bulb for the low beam headlight.

How do I change the headlight on a 2003 Land Rover Discovery?

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 H7 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 2003 Land Rover Discovery?

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 H7 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 2003 Land Rover Discovery headlights?

A pair of halogen H7 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 2003 Land Rover Discovery?

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 H7 LED position are available as direct plug-and-play replacements.

The 2003 Land-Rover Discovery is the first model year to use this bulb configuration (2003–2004).

Fitment Guaranteed for 2003 Land-Rover Discovery

What Size Bulbs Does a 2003 Land-Rover Discovery 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 Land-Rover Discovery Have?

When it comes to nighttime visibility, the 2003 Land-Rover Discovery relies on an arrangement of 14 specialized bulbs. It features an extensive lighting system powered by a halogen-based setup where a single H7 LED dual-filament bulb handles both low and high beam duties within the same reflector.

Can You Put LED Bulbs in a 2003 Land-Rover Discovery?

Upgrading to LED is one of the most effective ways to modernize your Land-Rover's appearance and safety profile. Since your Discovery uses a single H7 LED bulb for both high and low beams, ensure your chosen LED kit is "dual-beam" compatible. This allows the LED circuitry to mimic the two-filament design of the original halogen bulb. Don't forget the H11 LED fog lights; switching these to LED can dramatically improve your visibility in adverse weather.

2003 Land-Rover Discovery Bulb Size Chart

Position	Bulb Size	Shop
Low Beam	H7 LED	Buy H7 LED →
High Beam	H7 LED	Buy H7 LED →
Fog Light	H11 LED	Buy H11 LED →
Brake Light	7506 LED	Buy 7506 LED →
Side Marker	2825 LED	Buy 2825 LED →
Turn Signal Front	7506 LED	Buy 7506 LED →
Turn Signal Rear	7506 LED	Buy 7506 LED →
Reverse Light	7506	Buy 7506 →
Dome Light	6418	Buy 6418 →
License Plate	6418	Buy 6418 →
Map Light	6461	Buy 6461 →
Parking Light	2825	Buy 2825 →
Trunk Light	5008	Buy 5008 →
Tail Light	7528	Buy 7528 →

How do the 2003 Land-Rover Discovery's bulbs compare to other years?

The 2003 Land-Rover Discovery changed bulb sizes from 2002. The previous model year used a different configuration.

The 2004 model continues with the same bulb sizes.

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

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Other Discovery Years

2019 2018 2017 2004 2002 2001 2000 1999 1998 1997 1996 1995 1994

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