The Mazda 5 front side marker uses 1034NA or 1157NA bulb sizes, while the rear side marker requires a 7443 bulb size. The replacement chart covers vehicle production years spanning 2006 to 2015 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 5 front side marker position uses two bulb types across its model years: the 1034NA and the 1157NA. Both share the BAY15d bayonet base and a 12V, 21W/5W dual-filament configuration, making them functionally similar in output and base type.
The 1034NA and 1157NA are both ANSI-standard dual-filament bulbs rated at 12V with a 21W high-filament and 5W low-filament draw. Both feature natural amber glass, which produces the amber color required for side marker applications without relying on a colored lens.
Although the 1034NA and 1157NA share the BAY15d bayonet base, the 1034NA is technically a variant of the 1157NA. The two are not always interchangeable, and the specific bulb size listed for each model year should be observed.
The Mazda 5 front side marker for 2012-2014 uses the 1157NA, while the 2015 model year uses the 1034NA. The 2006 and 2009-2010 model years also use the 1034NA, and the 2007-2008 model years use the 1157NA.
The rear side marker position across the Mazda 5 specifications uses exclusively the 7443 bulb. This is a T20 wedge-base dual-filament bulb rated at 12V, 21W/5W, and it follows the ANSI standard applicable to the US and Canadian markets.
The 7443 is a wedge-base bulb, which differs fundamentally in its mounting mechanism from the BAY15d bayonet base used in the 1034NA and 1157NA. These two base types are not interchangeable with one another.
The rear side marker specification for the 2007-2010 model years carries a conditional note indicating the 7443 applies specifically to vehicles equipped with halogen capsule headlamps. The 2012-2015 rear side marker rows carry no such condition.
All three bulb types listed in the Mazda 5 side marker specifications are dual-filament designs. A dual-filament bulb contains two separate filaments within a single envelope, allowing it to operate at two distinct wattage levels depending on the circuit activated.