Harley-Davidson FXDS-Conv Dyna Convertible headlight bulbs utilize a 9003 size for both high and low beam functions. The replacement chart covers vehicle production spanning 1994 to 2000 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 FXDS-Conv Dyna Convertible uses the 9003 bulb across both the high beam and low beam headlight positions for the 1994-2000 model years.
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 from one housing position.
The 9003 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 flange. This base type determines physical fitment into the headlight housing and is not interchangeable with other base configurations.
The 9003 designation follows the ANSI standard as 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 and packaging may differ.
Because both the high beam and low beam positions share the same 9003 specification across all listed years, a single bulb type serves the entire headlight assembly on this model.