The Yamaha SR10 SR Viper uses a 9003 bulb size for both high beam and low beam headlight applications. The replacement chart covers vehicle production spanning 2015 to 2019 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 Yamaha SR10 SR Viper uses the 9003 bulb for both the high beam and low beam headlight positions across the 2015-2019 model years.
The 9003 is an ANSI-standard bulb recognized in the United States and Canada, distinguishing it from ECE-standard equivalents used in other markets.
The 9003 is a dual-filament halogen bulb, meaning a single bulb contains two separate filaments to serve both the high beam and low beam functions within one housing.
The bulb 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, and this base type determines physical socket compatibility.
Because the same 9003 bulb size is specified for both the high beam and low beam positions, the Yamaha SR10 SR Viper headlight system relies on the dual-filament design of that bulb rather than separate single-filament bulbs for each function.
The 9003 and H4 bulbs share the same dual-filament halogen construction and P43t base, though the 9003 designation follows ANSI standards while H4 follows ECE standards, and substitution between the two warrants verification of exact socket and voltage compatibility before use.