The Harley-Davidson XL1200V Seventy-Two uses a 9003 bulb size for both high beam and low beam headlight applications. The replacement chart covers 2012 through 2016 vehicle production 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 bulb is an ANSI-standard dual-filament halogen type 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.
Because the 9003 carries two filaments within a single bulb, it serves both the high beam and low beam headlight positions in the Harley-Davidson XL1200V Seventy-Two, meaning one bulb type covers both functions.
The 9003 specification applies to all documented model years of the XL1200V Seventy-Two, spanning 2012-2016, with no variation across that period.
The P43t base is a bayonet-style fitting with a 43mm collar. Bulbs with physically similar appearances but different base types are not interchangeable with the 9003, as the base governs the physical and electrical connection to the socket.
The 9003 is an ANSI designation used in the United States and Canada. Its international equivalent is the H4, which shares the same dual-filament halogen construction and P43t base, though labeling and packaging may differ by market.
The wattage split between filaments, 60W for high beam and 55W for low beam, reflects a deliberate design difference in light output between the two modes rather than a uniform power draw across both.