The Mazda 929 brake light utilizes a 1157 bulb size for the lighting system. Data provided for the specific component covers the range from 1988 through 1995.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Mazda 929 uses the 1157 bulb for brake lights across all available model years, spanning 1988-1995.
The 1157 is a dual-filament bulb, meaning it serves two lighting functions within a single unit, typically combining stop and tail light operation through separate filaments rated at 21W and 5W respectively.
The 1157 operates on a 12V system and uses a BAY15d bayonet base, a two-pin offset base design that prevents incorrect installation by ensuring only one rotational orientation fits the socket.
The 1157 conforms to ANSI standards applicable in both the United States and Canada, indicating a standardized specification shared across North American markets.
The center high mount stop light on the Mazda 929 uses the 921 bulb across all model years from 1988-1995, a different bulb type from the standard brake light position.
The 921 is a single-filament wedge-type bulb in the T15 form factor, operating at 12V with a 16W output.
The wedge base of the 921 relies on the tension of its wire leads rather than a bayonet or screw mechanism to hold it in the socket, which is a physically distinct mounting method from the 1157.
The 1157 and 921 are not interchangeable, as they differ in base type, filament count, and wattage, making each specific to its designated position on the vehicle.
Both the 1157 and 921 carry ANSI standardization for the US and Canadian markets, classifying them as widely available bulb types within those regions.