The Mazda Mizer high beam and low beam headlight bulbs both utilize the H6024 size. The replacement chart covers vehicle production spanning 1976 to 1977.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The H6024 is a 7-inch round sealed beam unit operating at 12 volts. It conforms to ANSI standards as used in the United States and Canada. Unlike bulb-and-housing systems, the sealed beam design integrates the filament, reflector, and lens into a single unit, meaning the entire assembly is replaced rather than an internal bulb.
The Mazda Mizer uses the H6024 for both high beam and low beam headlight positions across the 1976-1977 model years. A single bulb type serving both functions is characteristic of a dual-filament sealed beam arrangement, where one unit contains separate filaments for each lighting mode.
Because the H6024 is a sealed beam unit rather than a socketed bulb, fitment is determined by the physical housing size and mounting configuration rather than a bulb socket type. The 7-inch round format was a standardized size widely adopted in North American vehicle production during that era, which generally allows cross-brand interchangeability within the same sealed beam category.