The Kawasaki VN1500 Vulcan headlight bulb uses a 9003 size for both high and low beam functions. The replacement chart covers vehicle production spanning 1987 to 2008.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Kawasaki VN1500 Vulcan uses the 9003 bulb for both the high beam and low beam headlight positions across all model years from 1987-2008.
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 within one housing.
The 9003 operates on a 12-volt electrical system and carries a wattage rating of 60W on the high beam filament and 55W on the low beam filament.
The 9003 uses a P43t base, which is a bayonet-style mount with a 43mm flange. This base type is a defining factor in physical fitment and is not interchangeable with single-filament bases such as H1 or H7.
The 9003 designation follows the ANSI standard used in the United States and Canada. It is electrically and physically equivalent to the European H4 bulb, and the two designations are generally considered interchangeable in practice.
Because both the high beam and low beam positions share the same 9003 specification across all listed years, a single bulb type serves the entire headlight assembly on the VN1500 Vulcan throughout its full production run in these specifications.