Harley-Davidson FLH Electra Glide headlight bulbs utilize the H5006 size for both high and low beam functions. The replacement chart covers 1970 to 1984 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 Harley-Davidson FLH Electra Glide uses the H5006 bulb for both the high beam and low beam headlight positions across the 1970-1984 model years.
The H5006 is an ANSI-standardized sealed beam unit, meaning the lens, reflector, and filament are fused into a single non-serviceable assembly. When the filament fails, the entire unit is replaced rather than an individual bulb.
The H5006 unit operates on a 12-volt electrical system, which is consistent with the standard automotive and motorcycle electrical architecture of that era.
The H5006 is a 5.75-inch round sealed beam, a format that was widely shared across motorcycles and passenger vehicles of the period, making cross-platform availability relatively common at the time of production.
Because the H5006 serves both the high beam and low beam functions on the FLH Electra Glide, the single sealed beam unit contains dual filaments rather than requiring separate bulbs for each lighting mode.
The ANSI standardization of the H5006 means the unit conforms to defined performance and physical specifications recognized in both the United States and Canada, which governed its fitment across multiple vehicle types.
The identical H5006 specification across all fifteen model years covered in the data indicates no headlight assembly changes were made to the FLH Electra Glide during the 1970-1984 production span.