Mazda B2000 front side marker bulbs utilize 89 and 67 bulb sizes, while rear side marker bulbs require 1157 bulb size specifications. The replacement chart covers vehicle production years spanning 1979 to 1984.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Mazda B2000 front side marker uses two different bulb sizes depending on the model year, with 1979-1981 models fitted with the size 67 bulb and 1982-1984 models fitted with the size 89 bulb.
Both the size 67 and size 89 bulbs are ANSI-standard single-filament bulbs sharing the same BA15s bayonet base, though they differ in wattage, with the 67 rated at 8W and the 89 rated at 13W.
Because the 67 and 89 bulbs share the BA15s base, physical fitment in the socket is possible across both generations, but the wattage difference means they are not direct electrical equivalents and substitution between them is not recommended.
Both the size 67 and size 89 are described as lower wattage variants of the 1156 bulb, which indicates a shared base design but a reduced power output relative to that reference bulb.
The Mazda B2000 rear side marker uses the size 1157 bulb consistently across all model years covered, spanning 1979-1984.
The 1157 is a dual-filament bulb rated at 12V with a 21W/5W output, meaning it carries separate filaments for two distinct brightness levels, a characteristic that distinguishes it from the single-filament bulbs used at the front.
The 1157 uses a BAY15d bayonet base, which differs from the BA15s base found on the front side marker bulbs. The two base types are not interchangeable despite their similar appearance.
All three bulb types specified for the B2000 side markers conform to ANSI standards applicable in both the United States and Canada.