For the 2016 Mazda Mazda3, headlight bulb fitment varies by the installed headlamp configuration. The listed low-beam options are D4S and H11, while high-beam options are D4S and 9005. Confirm the existing bulb and headlight assembly before ordering, especially if the vehicle uses HID lighting. The fog lights use H11 LED bulbs.
- Front turn signals: 7440A
- Daytime running lights: 9005
- Front side marker: 2827 with halogen headlights or 2825 with HID headlights
- Reverse light: 7440 for hatchback models or 921 for sedans
- Brake and tail lights: 7443R
- Rear turn signals: 7440A; rear side markers: 7443A
- License plate lights: 2825; parking lights: 2827
- Dome and map lights: DE3175
Check whether your Mazda3 is a hatchback or sedan for the correct reverse-light bulb, and verify the headlight type before replacing low- or high-beam bulbs.