The Mazda MX-3 front turn signal requires a 1157 bulb size, while rear turn signals use either 1156 or 1157 bulb sizes. The replacement chart covers 1992 to 1995 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 MX-3 uses two distinct bulb types across its turn signal positions: the 1157 and the 1156, both of which are ANSI-standard bulbs recognized in the US and Canada.
The 1157 is a dual-filament bulb rated at 12V with a 21W main filament and a 5W secondary filament, mounted on a BAY15d bayonet base. The dual-filament design allows a single bulb to serve two lighting functions simultaneously.
The 1156 is a single-filament bulb rated at 12V at 21W, mounted on a BA15s bayonet base. Its single-filament construction means it serves only one lighting function.
The BAY15d base of the 1157 and the BA15s base of the 1156 are physically incompatible with each other. The BAY15d base features offset locating pins, while the BA15s base has a single pin, preventing cross-installation between the two types.
The front turn signal position on the MX-3 uses the 1157 bulb across all model years covered, specifically 1992-1995.
The rear turn signal position on the MX-3 (Mazda MX-3) transitioned from the 1157 in 1992-1993 to the 1156 in 1994-1995, representing a change in both base type and filament configuration for that position.
For the 1992-1993 model years, both the front and rear turn signal positions share the same 1157 bulb specification, making those two positions interchangeable in terms of bulb fitment during that period.
For the 1994-1995 model years, the front and rear turn signal positions require different bulb types, and substituting one for the other is not possible due to the differing base configurations.