Used for: Back Up Reverse Light Bulb
Used for: License Plate Light Bulb
Used for: License Plate Light Bulb
Used for: Parking Light Bulb(without adaptive lighting), Side Marker Light Bulb Front(without adaptive lighting)
Used for: Turn Signal Light Bulb Front(without adaptive lighting), Turn Signal Light Bulb Rear
Used for: Dome Light Bulb, Map Light Bulb, Trunk or Cargo Area Light
This 2016 Mazda CX-9 bulb size page helps you verify the correct bulb by lighting position, so you can match the right replacement to the right lamp. Whether you are changing a headlight, reverse light, license plate light, or interior bulb, the goal is to make identification quick and reduce guesswork before you buy.
The 2016 Mazda CX-9 uses a mix of LED and replaceable bulb types depending on the lamp location and equipment level. Some positions are listed as LED assemblies, while others use specific bulb numbers such as 921, 7440A, DE3175, 2825/98, and 2827. Because fitment can vary by market, trim, and lighting package, it is important to check the exact position on the vehicle before ordering.
For the best fit, compare your CX-9’s trim and lighting package with the bulb chart on this page, especially if the vehicle has adaptive lighting or a different front lamp setup. Some versions use halogen-style replaceable bulbs in certain positions, while others use LED units that are not serviced the same way. If you are converting to aftermarket LED bulbs, confirm polarity, socket style, and available space, since not every LED replacement will fit or function correctly. Before purchasing, it is smart to remove the installed bulb and verify the number printed on it, because that is the most reliable way to confirm fitment when options differ by market or build.
On this page, the low beam headlight for the 2016 Mazda CX-9 is listed as LED. That means the low beam is not shown here as a simple replaceable halogen bulb size.
The high beam headlight is listed as LED for the 2016 Mazda CX-9. Check the vehicle’s lamp type before ordering, since the assembly may differ from a standard bulb socket setup.
For models without adaptive lighting, the front turn signal bulb is listed as 7440A.
For models with adaptive lighting, the front turn signal is listed as LED on this page. That setup may use a different lamp design than the non-adaptive version.
The parking light bulb without adaptive lighting is listed as 2827.
For front side marker lights without adaptive lighting, the listed bulb size is 2827 as well.
The rear turn signal bulb is listed as 7440A.
The back up reverse light bulb is listed as 921.
The license plate light bulb is listed as 2825 or 98. Either of those sizes may apply depending on the exact lamp setup.
The dome light bulb is listed as DE3175.
The map light bulb is listed as DE3175.
The trunk or cargo area light bulb is listed as DE3175.
No. Trim level, lighting package, market, and body style can change the bulb type or whether the lamp is LED or replaceable. Always match the exact position on the vehicle.
Yes. Checking the installed bulb is the safest way to confirm fitment, especially if your CX-9 has adaptive lighting or a package that differs from the listed setup.
