The 2018 Mazda CX-9 uses LED bulbs for both the low-beam and high-beam headlights, along with LED fog lights and daytime running lights. The headlight fitment is listed as LED without an additional projector or non-projector distinction.
Lighting varies with the adaptive lighting configuration. Vehicles with adaptive lighting use LED front turn signals, parking lights, and front side markers. Without adaptive lighting, these positions use 7440A front turn signals and 2827 parking and front side-marker bulbs.
- Rear turn signals: 7440A
- Reverse lights: 921
- Brake, center stop, tail, and rear side-marker lights: LED
- License plate lights: 2825 or 98
- Dome, map, and trunk lights: DE3175
Check whether the CX-9 has adaptive lighting before ordering front turn-signal, parking-light, or front side-marker bulbs. The listed LED applications are integrated LED lighting rather than replaceable bulb sizes.