The Yamaha SS440 headlight bulb uses a 9003 size for both high beam and low beam functions. The replacement chart covers vehicle production spanning 1980 to 1985.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Yamaha SS440 uses the 9003 bulb across all listed model years, 1980-1985, for both high beam and low beam headlight positions.
The 9003 is a dual-filament halogen bulb, meaning a single bulb unit contains two separate filaments to serve both the high beam and low beam functions independently.
The 9003 operates at 12 volts, with the high beam filament rated at 60 watts and the low beam filament rated at 55 watts.
The 9003 uses a P43t base, which is a bayonet-style mount with a 43mm flange. This base type determines physical fitment into the headlight housing and is not interchangeable with other base configurations.
The 9003 is an ANSI-standardized bulb recognized in both the United States and Canada, meaning it conforms to a defined set of performance and construction requirements under that standard.
Because the same bulb size covers both beam positions across the entire 1980-1985 production span of the Yamaha SS440, a single 9003 bulb type is applicable to all headlight replacements on these units.