The Harley-Davidson XL883 Sportster uses a 9003 bulb size for both high beam and low beam headlight applications. The replacement chart covers 1999 to 2020 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 XL883 Sportster uses the 9003 bulb for both the high beam and low beam headlight positions across the 1999-2020 model years.
The 9003 is an ANSI-standard halogen bulb recognized in the United States and Canada, operating on a 12-volt electrical system with a dual-filament design rated at 60 watts for high beam and 55 watts for low beam.
Because both the high beam and low beam positions share the same 9003 bulb type, a single bulb serves both lighting functions through its two internal filaments rather than requiring separate bulbs for each function.
The 9003 bulb 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 is the ANSI classification for this bulb. It is electrically and physically equivalent to the European H4 standard, meaning bulbs sold under either designation are generally cross-compatible, though labeling may differ by market.
The consistent use of the 9003 across all 22 model years covered by the specifications means that a single bulb specification applies uniformly to the entire documented production range of the XL883 Sportster headlight.