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Mazda Mazda3 2007 Bulb Size
Bulb size chart
Fog Light Bulb Front(Compare to original - Option 1) - 9006 LED
Fog Light Bulb Front(Compare to original - Option 2) - H11 LED
Headlight Bulb High Beam - 9005
Headlight Bulb Low Beam(with halogen headlights) - H7
Headlight Bulb Low Beam(with HID headlights) - D2S
Back Up Reverse Light Bulb - 7440
Brake Light Bulb - 7443R
Center High Mount Stop Light Bulb - 921
License Plate Light Bulb - 2825
Parking Light Bulb - 1157A
Side Marker Light Bulb Front - 1157A
Tail Light Bulb - 7443R
Turn Signal Light Bulb Front - 1157A
Turn Signal Light Bulb Rear - 7440A
Dome Light Bulb - DE3175
Map Light Bulb - 2825
Trunk or Cargo Area Light(Compare to original - Option 1) - 2825
Trunk or Cargo Area Light(Compare to original - Option 2) - DE3022
9006 LED Bulbs
Used for: Fog Light Bulb Front(Compare to original - Option 1)
H11 LED Bulbs
Used for: Fog Light Bulb Front(Compare to original - Option 2)
9005 Bulbs
Used for: Headlight Bulb High Beam
H7 Bulbs
Used for: Headlight Bulb Low Beam(with halogen headlights)
D2S Bulbs
Used for: Headlight Bulb Low Beam(with HID headlights)
7440 Bulbs
Used for: Back Up Reverse Light Bulb
7443R Bulbs
Used for: Brake Light Bulb, Tail Light Bulb
921 Bulbs
Used for: Center High Mount Stop Light Bulb
2825 Bulbs
Used for: License Plate Light Bulb, Map Light Bulb, Trunk or Cargo Area Light(Compare to original - Option 1)
1157A Bulbs
Used for: Parking Light Bulb, Side Marker Light Bulb Front, Turn Signal Light Bulb Front
7440A Bulbs
Used for: Turn Signal Light Bulb Rear
DE3175 Bulbs
Used for: Dome Light Bulb
DE3022 Bulbs
Used for: Trunk or Cargo Area Light(Compare to original - Option 2)
This 2007 Mazda Mazda3 bulb size guide helps you verify the correct bulbs by lighting position, so you can replace the right part the first time. Whether you are changing a headlight, tail light, dome light, or license plate light, matching the bulb to the exact location is the easiest way to avoid fitment mistakes.
The Mazda3 of this year can use different bulb types depending on trim, body style, and lighting package. That is why this page separates the bulbs by function, including high beam, low beam, fog light, brake light, and interior lighting, so you can compare the installed bulb before buying a replacement.
For the best fit, always confirm whether your 2007 Mazda3 has halogen or HID low beams, because the bulb type is different. Some positions may also vary by market or trim, and aftermarket LED conversions can change the bulb choice even when the socket looks similar. If your car has been modified, or if you are unsure which lamp is installed, check the old bulb before ordering. That is especially important for fog lights and headlight upgrades, where the original setup may not match a previous owner’s conversion.
FAQ
What is the low beam bulb for a 2007 Mazda Mazda3 with halogen headlights?
The low beam bulb listed for halogen headlights is H7. This applies only if your Mazda3 came with halogen low beams from the factory.
What is the low beam bulb for a 2007 Mazda Mazda3 with HID headlights?
The low beam bulb listed for HID headlights is D2S. Make sure your car actually has HID equipment before ordering this bulb.
What bulb does the high beam use on the 2007 Mazda3?
The high beam bulb is 9005. This is the bulb listed for the high beam position on this model year.
What is the front fog light bulb on the 2007 Mazda Mazda3?
Two fog light fitment options are listed: 9006 LED and H11 LED. The correct choice can depend on trim, market, or whether the vehicle has been converted.
What bulb fits the front turn signal on a 2007 Mazda3?
The front turn signal light bulb is 1157A. The same bulb type is also listed for the parking light and front side marker positions.
What bulb is used for the rear turn signal on this Mazda3?
The rear turn signal light bulb is 7440A. Check the installed bulb to confirm, especially if the car has had previous lighting repairs.
What bulb is used for the brake light and tail light?
Both the brake light bulb and tail light bulb are listed as 7443R. This shared bulb type is common on this model year, but you should still verify the socket and bulb markings.
What bulb fits the center high mount stop light?
The center high mount stop light bulb is 921. This is the third brake light located higher on the rear of the vehicle.
What bulb is used for the reverse light?
The back up reverse light bulb is 7440. If a previous owner installed LED bulbs, confirm the exact replacement style before buying.
What is the dome light bulb for the 2007 Mazda3?
The dome light bulb is DE3175. This is the interior roof lamp bulb used for the cabin dome light.
What bulb fits the map lights?
The map light bulb is 2825. The same bulb size is also listed for the license plate light and some trunk or cargo area light positions.
What bulb is used for the license plate light?
The license plate light bulb is 2825. This small bulb is easy to replace, but it is still smart to compare the old bulb if the housing has been changed.
Are there different trunk or cargo area bulb options on the 2007 Mazda3?
Yes. Two trunk or cargo area light options are listed: 2825 and DE3022. The correct one may depend on the exact trim or lighting setup.
Why does the bulb size guide mention trim and body style differences?
Because the 2007 Mazda Mazda3 can vary by market, trim, and body style. Lighting packages and prior repairs can also affect which bulb is installed, so checking the existing bulb is the safest approach.