The Indian Chief Vintage headlight bulb uses a 9003 size for both high and low beam functions. The replacement chart covers 2009 to 2018 model years with corresponding bulb specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Indian Chief Vintage uses the 9003 bulb size for both high beam and low beam headlight positions across the 2009-2018 model years.
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.
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 collar, and this base type determines physical fitment into the headlight housing.
The 9003 designation follows the ANSI standard as used in the United States and Canada, and it is electrically and functionally equivalent to the H4 bulb used under international IEC standards, though the two designations originate from different standardization bodies.
Because the 9003 and H4 share the same base and electrical specifications, they are generally considered interchangeable in practice, though fitment should be confirmed against the housing before installation.
The use of a single 9003 bulb for both beam positions means the Indian Chief Vintage headlight assembly does not require separate bulbs for high and low beam operation.