Mazda 2 front and rear side marker bulbs utilize 12961 and 7443 bulb sizes respectively. The replacement chart covers 2011 to 2014 model years 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 2 (2011-2014) uses two distinct bulb types across its front and rear side marker positions, with no shared fitment between the two locations.
The 12961 is a Philips part number designation for a T10 miniature wedge bulb with a W2.1x9.5d base, rated at 12V and 5W.
The T10 form factor is a small single-filament wedge bulb commonly associated with low-intensity lighting functions such as side markers and parking lights.
The 12961 bulb serves the front side marker position across all four model years covered in the specifications (2011-2014).
The 7443 is an ANSI-standardized designation recognized in both the United States and Canada, identifying a T20 dual-filament wedge bulb rated at 12V with filaments drawing 21W and 5W respectively.
The dual-filament construction of the 7443 allows it to serve two independent brightness levels within a single housing, which is a characteristic of bulbs used in positions requiring both a running light and a brighter signal function.
The 7443 bulb serves the rear side marker position on the Mazda 2 across all four model years covered (2011-2014).
The T10 and T20 designations refer to the outer width of the wedge base, with T20 being physically larger than T10, making the two bulb types non-interchangeable with each other.
The wattage difference between the 12961 (5W) and the 7443 (21W/5W) reflects a significant gap in power draw, which is relevant when considering socket and wiring compatibility during replacement.
The W2.1x9.5d base of the 12961 is a metric wedge base specification, and substituting a bulb with a different base type would result in an incompatible fit for the front side marker socket.