Harley-Davidson FXSB Low Rider - Belt Headlight Bulb Size
Harley-Davidson FXSB Low Rider - Belt uses an H5006 bulb size for both high beam and low beam headlight applications. The replacement chart covers 1983 to 1984 model 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 H5006 is the sole bulb type listed across all headlight positions for the Harley-Davidson FXSB Low Rider - Belt, covering both 1983 and 1984.
The H5006 is a sealed beam unit, meaning the lens, reflector, and filament are fused into a single assembly. When the filament fails, the entire unit is replaced rather than an internal bulb.
The H5006 follows the ANSI standard applicable in the United States and Canada, and operates on a 12-volt electrical system.
The unit is a 5.75-inch round sealed beam, a format that was common in motorcycle headlight applications of that era and is defined by its outer housing size rather than a separate bulb socket.
The H5006 serves both the high beam and low beam functions on this model. In sealed beam units of this type, both filaments are housed within the same assembly, with each filament activated by the corresponding beam circuit.
Because the H5006 is a standardized ANSI sealed beam type, units from different manufacturers sharing that designation are generally interchangeable, provided they conform to the same ANSI specification.