Mazda CX-5 Brake Bulb Size

The Mazda CX-5 brake bulb uses a 7443 size bulb for this model. The replacement chart contains specifications covering 2013 through 2023 production years.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Bulb Size by Year Range

Years	Bulb Size
2021-2023	7443
2017-2020	7443 (Without LED Tail Lights)
2016	7443 (With Halogen Capsule Headlamps)
2013-2015	7443

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Dual-filament wedge bulb (T20). 12V, 21W/5W.	7443

Other Locations

Additional Notes

The 7443 is the brake bulb size across all listed model years of the Mazda CX-5, spanning 2013-2023.
The 7443 bulb follows the ANSI standard recognized in the United States and Canada, classifying it as a regionally standardized automotive component.
The 7443 is a dual-filament wedge bulb, meaning it contains two separate filaments within a single housing. One filament operates at 21W for high-intensity functions such as braking, while the second operates at 5W for lower-intensity functions such as running lights.
The T20 designation refers to the bulb's wedge base form factor, which is a push-in style base without a metal screw shell. This base type is common in tail, brake, and turn signal applications.
The bulb operates at 12V, consistent with the standard electrical system voltage found in conventional passenger vehicles.
For the 2017-2020 Mazda CX-5, the 7443 brake bulb size applies specifically to trims equipped without LED tail lights. Trims fitted with LED tail lights do not use this bulb for the brake light function.
The 2016 Mazda CX-5 carries a distinct qualifier, restricting the 7443 fitment to trims with halogen capsule headlamps rather than referencing the tail light configuration as seen in surrounding model years.
For the 2021-2023 model years, no trim-level qualifier is listed, indicating the 7443 applies without restriction across those years as specified.