Used for: Fog Light Bulb Front
Used for: Headlight Bulb High Beam and Low Beam
Used for: Back Up Light Bulb, Back Up Reverse Light Bulb, Center High Mount Stop Light Bulb, Turn Signal Light Bulb Front, Turn Signal Light Bulb Rear
Used for: Brake Light Bulb, Tail Light Bulb
Used for: License Plate Light Bulb, Dome Light Bulb, Glove Box Light Bulb
Used for: Parking Light Bulb, Side Marker Light Bulb Front, Courtesy Light Bulb
Used for: Map Light Bulb
Used for: Trunk or Cargo Area Light
This page covers the bulb sizes for the 2003 Land Rover Discovery and is organized by lighting position so you can verify the correct replacement before you buy. Whether you are replacing a headlight, tail light, interior lamp, or a small exterior marker, checking the bulb by location helps reduce guesswork and avoids ordering the wrong part.
The 2003 Land Rover Discovery can use different lighting setups depending on trim, market, and body style, so the same vehicle may not have every bulb listed in the same way. Use the chart on this page as a fitment guide for each lamp location, especially if you are replacing bulbs one at a time or comparing both sides of the vehicle.
For best results, compare the bulb currently installed in your Discovery with the chart before purchasing replacements. Trim and package differences can affect fitment, and some vehicles may have been converted from halogen to LED or fitted with aftermarket housings that change the bulb type. If you are upgrading to LED, make sure the bulb base matches and check for polarity, clearance, and heat management. For exterior lights, it is also smart to confirm the installed bulb before buying, since prior repairs or modifications may not match the original equipment listing.
The listed headlight bulb for both high beam and low beam on the 2003 Land Rover Discovery is H7.
The front fog light bulb listed for the 2003 Land Rover Discovery is H11.
Both the front turn signal light bulb and rear turn signal light bulb are listed as 7506.
The brake light bulb listed for this model year is 7528.
The tail light bulb listed for the 2003 Land Rover Discovery is 7528.
The center high mount stop light bulb is listed as 7506.
The license plate light bulb listed for this Discovery is 6418.
Both the dome light bulb and glove box light bulb are listed as 6418.
The map light bulb listed for the 2003 Land Rover Discovery is 6461.
The parking light bulb and front side marker light bulb are both listed as 2825.
The courtesy light bulb listed for this vehicle is 2825.
The back up reverse light bulb and back up light bulb are both listed as 7506.
The trunk or cargo area light bulb is listed as 5008.
Yes. Trim level, lighting package, market, and body style can affect bulb fitment, so it is important to confirm the bulb by position and check the installed bulb when possible.
Yes. Checking the installed bulb is the safest way to confirm fitment, especially if the vehicle has aftermarket parts, prior repairs, or a halogen-to-LED conversion.
