Harley-Davidson FLHTC Electra Glide Classic headlight bulbs utilize a 9003 bulb size for both high and low beam functions. The replacement chart covers 1983 to 2013 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 Harley-Davidson FLHTC Electra Glide Classic uses the 9003 bulb size for both high beam and low beam headlight positions across all listed model years from 1983-2013.
The 9003 is a dual-filament halogen bulb, meaning a single bulb unit contains two separate filaments to serve both high and low beam functions within one housing.
The bulb operates on a 12-volt electrical system and carries a wattage rating of 60W on the high beam filament and 55W on the low beam filament.
The 9003 uses a P43t base, which is a bayonet-style mount with a 43mm collar. This base type determines physical fitment and is not interchangeable with other base configurations.
The 9003 designation follows the ANSI standard used in the United States and Canada. It is electrically and functionally equivalent to the European H4 bulb, though the two designations originate from different standardization bodies.
Because the 9003 and H4 share the same filament configuration, wattage, voltage, and P43t base, they are generally considered interchangeable in practice, though the specifications list only the 9003 designation for this model.