What Size Bulbs Does a 2007 Subaru B9 Tribeca 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 2007 Subaru B9 Tribeca Have?
The 2007 Subaru B9 Tribeca features an extensive lighting system with 13 bulb positions. It uses halogen technology with H7 LED low beams and H9 LED high beams in a dual-bulb configuration. The B9 Tribeca has been available from 2006 to 2007, and the 2007 model falls in the late-generation years.
Can You Put LED Bulbs in a 2007 Subaru B9 Tribeca?
To upgrade the 2007 Subaru B9 Tribeca headlights to LED, you will need a H7 LED LED kit for the low beams and a H9 LED LED kit for the high beams. Start with the low beams since they are used most often and have the biggest impact on nighttime visibility. 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 2007 Subaru B9 Tribeca
The H7 bulb uses a spring clip or wire retainer that holds the bulb in the socket. 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 2007 B9 Tribeca 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 13 Positions at Once
2007 Subaru B9 Tribeca Complete Bulb Size Chart
| Position | Bulb Size | Shop |
|---|---|---|
Low Beam | H7 LED | Buy H7 LED |
High Beam | H9 LED | Buy H9 LED |
Fog Light | H3 LED | Buy H3 LED |
Brake Light | LED Bulb | Buy LED Bulb |
Side Marker | 7443 LED | Buy 7443 LED |
Turn Signal Front | 2357NA LED | Buy 2357NA LED |
Turn Signal Rear | 7440 LED | Buy 7440 LED |
Reverse Light | 921 | Buy 921 |
Dome Light | DE3022 | Buy DE3022 |
License Plate | 168 | Buy 168 |
Map Light | DE3175 | Buy DE3175 |
Parking Light | 2357NA | Buy 2357NA |
Trunk Light | 912 | Buy 912 |
Want to upgrade everything at once?
Shop Complete LED Kit for 2007 Subaru B9 TribecaHow Long Do 2007 Subaru B9 Tribeca Headlight Bulbs Last?
Standard halogen headlights on the 2007 Subaru B9 Tribeca 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 19 years old, the original bulbs on your B9 Tribeca 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 2007 Subaru B9 Tribeca?
The H7 low beam bulb on the 2007 Subaru B9 Tribeca is a specific fitment. There are no widely recognized cross-compatible alternatives, so make sure to purchase the exact H7 size. For the high beams, the H9 is interchangeable with H11, H8. 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.
2007 Subaru B9 Tribeca Headlight FAQ
Did Subaru B9 Tribeca Bulb Sizes Change Over the Years?
Over its production run from 2006 to 2007, the Subaru B9 Tribeca has seen bulb size changes in the Turn Signal Front and Parking Light positions. Always verify the exact bulb size for your specific 2007 model year using the chart above, as using the wrong size can result in poor fitment or reduced light output.
Other B9 Tribeca Years
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Other Vehicles That Use H7 LED Bulbs
These vehicles from other makes also use a H7 LED low beam bulb: