What Size Bulbs Does a 2004 Mitsubishi Montero Sport 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 2004 Mitsubishi Montero Sport Have?
The 2004 Mitsubishi Montero Sport features an extensive lighting system with 12 bulb positions. It uses halogen technology with a single 9007 LED dual-filament bulb handling both low and high beams. The Montero Sport has been available from 1997 to 2004, and the 2004 model falls in the late-generation years.
Can You Put LED Bulbs in a 2004 Mitsubishi Montero Sport?
Upgrading the 2004 Mitsubishi Montero Sport to LED headlights is straightforward since it uses a single 9007 LED dual-filament bulb for both low and high beams. You only need one pair of LED bulbs to upgrade both functions. Look for a 9007 LED LED kit that specifically supports dual-filament operation to ensure both beams work correctly. For the fog lights, a H3 LED LED bulb provides a clean white output that pairs well with LED headlights.
How to Replace Bulbs on a 2004 Mitsubishi Montero Sport
The 9007 bulb uses a twist-lock base with a keyed tab for alignment identical to H13. To remove the old bulb, disconnect the wiring harness first, then twist the bulb counter-clockwise and pull it out. Older model years like the 2004 Montero Sport typically offer easy access to the headlight bulbs from behind the headlight assembly under the hood. Most owners can complete the swap in under 10 minutes per side. When installing the new bulb, avoid touching the glass with bare fingers. Skin oils create hot spots that shorten bulb life. Wear clean gloves or handle the bulb by its plastic base only. The fog lights are accessed from underneath the front bumper. You may need to remove a few plastic clips or screws from the fender liner to reach the H3 LED fog light socket.
Full Upgrade Bundle
Upgrade All 12 Positions at Once
2004 Mitsubishi Montero Sport Complete Bulb Size Chart
| Position | Bulb Size | Shop |
|---|---|---|
Low Beam | 9007 LED | Buy 9007 LED |
High Beam | 9007 LED | Buy 9007 LED |
Fog Light | H3 LED | Buy H3 LED |
Brake Light | 168 LED or 921 LED | Buy 168 LED or 921 LED |
Side Marker | 168 LED | Buy 168 LED |
Turn Signal Front | 7443 LED | Buy 7443 LED |
Turn Signal Rear | 1156 LED | Buy 1156 LED |
Dome Light | DE3175 | Buy DE3175 |
License Plate | 168 | Buy 168 |
Parking Light | 7443 | Buy 7443 |
Reverse Light | 1156 | Buy 1156 |
Trunk Light | DE3175 | Buy DE3175 |
Want to upgrade everything at once?
Shop Complete LED Kit for 2004 Mitsubishi Montero SportHow Long Do 2004 Mitsubishi Montero Sport Headlight Bulbs Last?
Standard halogen headlights on the 2004 Mitsubishi Montero Sport have an expected lifespan of 500 to 1,000 hours, which works out to roughly 2 to 3 years of normal use. Signs of a failing halogen bulb include noticeably dimmer output, a yellowish tint compared to the other headlight, or intermittent flickering. At 22 years old, the original bulbs on your Montero Sport are likely overdue for replacement. Even if they still illuminate, reduced brightness significantly impacts nighttime safety. When one headlight burns out, replace both sides at the same time. Bulbs from the same batch age at similar rates, and mismatched brightness is distracting to oncoming drivers.
What Bulbs Are Compatible with the 2004 Mitsubishi Montero Sport?
The 9007 low beam bulb on the 2004 Mitsubishi Montero Sport is cross-compatible with HB5 bulbs. These share the same physical base and electrical connection, so they will fit the socket. However, 9007 is the recommended size because it is optimized for the wattage and beam pattern designed into your headlight housing. The 9007 is a dual-filament bulb, meaning one bulb contains two separate filaments for low and high beams. This is a different design from single-filament bulbs like H11 or 9005. Make sure any LED replacement is specifically designed for dual-filament operation. Using the wrong bulb size can cause improper beam patterns that reduce your visibility and blind other drivers. It can also cause overheating inside the headlight housing, potentially warping the plastic lens or reflector. Always verify the bulb number before purchasing.
2004 Mitsubishi Montero Sport Headlight FAQ
Did Mitsubishi Montero Sport Bulb Sizes Change Over the Years?
Over its production run from 1997 to 2004, the Mitsubishi Montero Sport has seen bulb size changes in the Low Beam, High Beam and Turn Signal Front positions. The 2004 model uses the newer bulb specification introduced around 2000. Always verify the exact bulb size for your specific 2004 model year using the chart above, as using the wrong size can result in poor fitment or reduced light output.
Other Montero Sport Years
More from Mitsubishi
Other Vehicles That Use 9007 LED Bulbs
These vehicles from other makes also use a 9007 LED low beam bulb: