The Kawasaki VN1700 Vulcan 1700 Classic uses a 9003 bulb size for both high beam and low beam headlight applications. The replacement chart covers 2009 through 2012 model 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 9003 is an ANSI-standard dual-filament halogen bulb rated at 12 volts, with a high beam filament drawing 60 watts and a low beam filament drawing 55 watts. It uses a P43t base and is recognized under US and Canadian standards.
The Kawasaki VN1700 Vulcan 1700 Classic uses the 9003 bulb for both the high beam and low beam headlight positions across the 2009-2012 model years.
Because the 9003 carries both filaments within a single bulb, one unit serves the functions of both beam positions rather than requiring separate bulbs for each.
The P43t base is a bayonet-style fitting with a 43mm collar, which physically determines socket compatibility and is not interchangeable with other base types without modification.
The 9003 shares its filament wattage and base design with the H4 bulb used in international markets, though the two designations reflect different regional certification standards and may have minor physical differences that affect fitment.