BMW Motorcycle F650 uses a 9003 bulb size for both high beam and low beam headlight applications. The replacement chart covers 1997 to 2000 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 BMW Motorcycle F650 uses the 9003 bulb for both high beam and low beam headlight positions across the 1997-2000 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 within one housing.
The 9003 operates on a 12-volt electrical system and draws 60 watts on the high beam filament and 55 watts on the low beam filament.
The 9003 uses a P43t base, which is a bayonet-style mount with a 43mm flange, and this base type determines physical fitment into the headlight housing.
The 9003 designation follows the ANSI standard used in the United States and Canada, making it distinct from the European ECE-standard H4 bulb, which shares the same electrical ratings and dual-filament design but uses a different base and is not directly interchangeable without verification.
Because the same 9003 bulb specification applies to both the high beam and low beam positions on the F650, the headlight assembly relies on a single bulb type to fulfill both lighting functions rather than separate dedicated bulbs for each beam.