The Mazda CX-5 inner tail light requires a 12961 bulb size, while the outer tail light uses a 7443 bulb size. The replacement chart covers vehicle production years spanning 2013 to 2023 with corresponding bulb size specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Mazda CX-5 outer tail light uses the 7443 bulb across 2013-2023, making it the most consistently specified bulb in these tail light fitments.
The 7443 is an ANSI-standard dual-filament wedge bulb in a T20 form factor, rated at 12V with a 21W/5W output. The dual-filament design allows it to serve both tail light and brake light functions within a single bulb.
The inner tail light on the Mazda CX-5 uses the 12961 across 2013-2016. This is a Philips part number for a miniature T10 wedge bulb with a W2.1x9.5d base, rated at 12V and 5W.
The W2.1x9.5d base on the 12961 is a specific wedge-pin configuration. Substituting a bulb with a different base type would result in an incompatible fit.
For the 2016 Mazda CX-5, both the inner and outer tail light specifications carry a "With Halogen Capsule Headlamps" condition, indicating that the listed bulb sizes apply only to that headlamp configuration.
The outer tail light on 2017-2020 models carries a "Without LED Tail Lights" condition, meaning the 7443 fitment applies only to non-LED trim variants. Vehicles equipped with LED tail lights do not use this bulb in that position.
The 2021-2023 outer tail light rows list the 7443 without any trim condition noted, distinguishing them from the conditional fitments found in the 2017-2020 entries.
The 7443 and its common substitute, the 7440, share the same T20 wedge base, but the 7440 is a single-filament bulb. Using a 7440 in place of a 7443 in a dual-filament application would result in loss of one lighting function.