Harley-Davidson XG750 Street 750 Headlight Bulb Size
Harley-Davidson XG750 Street 750 uses 9003 bulb size for both high beam and low beam headlight applications. The replacement chart covers 2015 to 2020 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 XG750 Street 750 uses the 9003 bulb for both high beam and low beam headlight positions across the 2015-2020 model years.
The 9003 is an ANSI-standard designation used in the United States and Canada, making it the applicable reference for those markets.
As a dual-filament halogen bulb, the 9003 houses two separate filaments within a single unit, which allows it to serve both beam functions from one bulb position.
The 9003 operates on a 12-volt system and draws 60 watts on the high beam filament and 55 watts on the low beam filament.
The bulb uses a P43t base, a bayonet-style mount with a 43mm collar, which determines physical fitment into the headlight housing.
Because the same 9003 bulb specification covers both the high beam and low beam positions, the XG750 Street 750 headlight assembly relies on a single dual-filament unit rather than two separate single-filament bulbs.
The 9003 shares its filament and wattage configuration with the H4 bulb, though the two designations originate from different standardization bodies and may carry fitment differences at the base level that affect interchangeability.