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 page helps you verify bulb sizes for the 2020 Mazda CX-9 by lighting position, so you can match the correct bulb to each exterior and interior lamp before you buy. Because Mazda used different lighting setups by trim, market, and body style, checking the exact location is the safest way to confirm fitment.
For the 2020 Mazda CX-9, many forward and rear lighting functions use LED assemblies, while a few serviceable bulbs remain replaceable. Common examples on this page include the back up reverse light bulb 921, rear turn signal bulb 7440A, interior DE3175 bulbs, and license plate bulbs 2825 or 98. The page is organized to make replacement faster and easier.
Fitment can vary with trim package, adaptive lighting, and whether your CX-9 uses factory LED or halogen-style service bulbs in a specific position. Some listings change between models with adaptive lighting and those without it, so compare your vehicle’s installed bulb, connector, and housing before ordering. If you are converting from halogen to LED aftermarket bulbs, make sure the replacement is compatible with the socket, polarity, and any bulb monitoring system. When possible, remove the old bulb first and verify the number printed on it before purchase.
The low beam on the 2020 Mazda CX-9 is listed as LED. This page does not provide a separate replaceable bulb number for that headlight function.
The high beam is also listed as LED on the 2020 Mazda CX-9. Use the lighting position on this page to confirm the correct service information for your trim.
No. Front turn signal fitment varies. Models with adaptive lighting are listed as LED, while models without adaptive lighting use 7440A.
The rear turn signal bulb is 7440A.
The back up reverse light bulb is 921.
The license plate light bulb is listed as 2825 or 98.
Those interior positions use DE3175 bulbs.
The front parking light without adaptive lighting uses 2827.
The front side marker light without adaptive lighting uses 2827.
The front side marker light with adaptive lighting is listed as LED.
They are listed as LED on the 2020 Mazda CX-9, so there is no separate bulb number provided here for those functions.
Yes. Trim, lighting package, market, and body style can change the bulb setup, especially for adaptive lighting and LED-equipped positions.
Yes. Checking the installed bulb is the best way to confirm the exact fit, especially for positions that can vary between LED, 7440A, 921, 2825, 98, DE3175, or 2827.
