Mazda Tribute front and rear side marker bulbs utilize 3157NA and 4157 bulb sizes respectively. The replacement chart covers 2001 through 2011 vehicle production 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 Tribute front side marker uses the 3157NA bulb across the 2001-2006 model years.
The rear side marker on the Mazda Tribute uses the 4157 bulb for the 2008-2011 model years.
Both the 3157NA and 4157 are dual-filament T25 wedge bulbs rated at 12V with a 27W/7W power draw, meaning the higher wattage filament serves the primary function while the lower wattage filament serves a secondary role such as running light operation.
The 3157NA and 4157 share the same T25 wedge base and identical voltage and wattage ratings, which reflects a close mechanical and electrical relationship between the two bulb types.
The distinguishing feature of the 3157NA is its natural amber glass envelope, which produces an amber output without the use of an amber-tinted housing or lens.
The 4157 does not carry the "NA" designation, indicating its glass envelope is clear rather than amber-tinted.
Both bulb types conform to ANSI standards applicable in the United States and Canada, classifying them as standardized replacements within the North American market.
Because the 3157NA and 4157 differ in glass tint despite sharing the same base and electrical ratings, substituting one for the other would affect the color output of the side marker light.