The Mazda 808 uses H6024 and H5001 bulbs for high beam headlights and H6024 and H5006 bulbs for low beam headlights, with each bulb size specified for optimal illumination. The replacement chart covers 1972 through 1977 production years and details the bulb specifications for each headlight configuration.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Mazda 808 uses sealed beam headlight units across all listed model years, meaning the lens, reflector, and filament are fused into a single assembly. When the filament fails, the entire unit requires replacement rather than an internal bulb swap.
All three sealed beam types specified for the 808 conform to ANSI standards recognized in both the United States and Canada, and all operate on a 12V electrical system.
The H6024 is a 7-inch round sealed beam unit. It serves as both the high beam and low beam headlight on the 1976-1977 808, meaning a single unit type covers both functions for those years.
The 1972-1975 808 uses a split fitment between high and low beam positions. The high beam position takes the H5001, a 4-inch square sealed beam unit, while the low beam position takes the H5006, a 5.75-inch round sealed beam unit.
Because the H5001 and H5006 differ in both shape and physical size, the two units are not interchangeable with each other, despite both being used on the same vehicle during the 1972-1975 model years.
The H6024 used on 1976-1977 models is physically larger than either unit used in the earlier 1972-1975 configuration, which reflects a change in headlight housing design between those production periods.
The H5001 is the only square-format sealed beam in the 808 specifications. The H5006 and H6024 are both round units, though they are not the same size and are not cross-compatible.