BMW Motorcycle R1100RS high beam and low beam headlight bulbs both utilize a 9003 size. The replacement chart covers vehicle production spanning 1993 to 2001.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The BMW Motorcycle R1100RS uses the 9003 bulb for both high beam and low beam headlight positions across all model years from 1993-2001.
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 9003 operates at 12 volts 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, and this base type determines physical fitment into the headlight housing.
The 9003 is classified under the ANSI standard and is the designation used in the United States and Canada; it is electrically and physically equivalent to the H4 bulb used under European and international standards, though the designations differ by market.
Because the 9003 and H4 share the same P43t base and electrical ratings, they are generally considered interchangeable, though the applicable designation for the R1100RS as specified is 9003.