The Yamaha SX500/R headlight bulb uses a 9003 size for both high beam and low beam applications. The replacement chart covers vehicle production years spanning 2000 to 2001.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The 9003 is a dual-filament halogen bulb, meaning a single bulb contains two separate filaments: one rated at 60W for high beam operation and one rated at 55W for low beam operation.
The 9003 bulb operates on a 12-volt electrical system, which is standard for most automotive and powersport applications.
The 9003 uses a P43t base, a standardized bayonet-style fitting that determines physical compatibility with a given socket.
The 9003 designation follows the ANSI standard used in the United States and Canada, distinguishing it from the functionally similar H4 bulb, which follows European ECE standards and shares the same dual-filament design but uses a slightly different base configuration.
The Yamaha SX500/R uses the 9003 bulb for both the high beam and low beam headlight positions across the 2000-2001 model years, with a single bulb type serving both functions due to its dual-filament construction.
Because the high beam and low beam share the same 9003 bulb, the two headlight positions are not independently interchangeable with single-filament bulb types without modification to the housing or wiring.