Honda Motorcycle VT1100C2 Shadow ACE uses a 9003 bulb size for both high beam and low beam headlight applications. The replacement chart covers 1995 through 1999 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 Honda Motorcycle VT1100C2 Shadow ACE uses the 9003 bulb size for both its high beam and low beam headlight positions across the 1995-1999 model years.
The 9003 is an ANSI-standardized bulb designation recognized in the United States and Canada, operating on a 12-volt electrical system with a dual-filament halogen design rated at 60 watts for high beam and 55 watts for low beam.
The single bulb type serving both beam functions is made possible by the dual-filament construction of the 9003, which houses separate filaments within one glass envelope to produce two distinct output levels.
The 9003 uses a P43t base, a bayonet-style mount with a 43mm collar, which physically determines socket compatibility and is not interchangeable with bulbs carrying different base types regardless of voltage or wattage similarity.
The 9003 is functionally equivalent to the H4 bulb used in international markets, sharing the same base and filament configuration, though the designations reflect different regional standards and packaging conventions.
Because the same 9003 specification applies to both the high beam and low beam positions, only one bulb type is required to service the entire headlight assembly on the VT1100C2 Shadow ACE.