Indian Chieftain high beam and low beam headlight bulbs both utilize a 9003 bulb size. The replacement chart covers vehicle production spanning 2014 to 2018.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Indian Chieftain uses the 9003 bulb for both high beam and low beam headlight functions across the 2014-2018 model years.
The 9003 is a dual-filament halogen bulb, meaning a single bulb contains two separate filaments to serve both beam functions within one housing.
The 9003 operates at 12 volts, with the high beam filament rated at 60 watts and the low beam filament rated at 55 watts.
The 9003 uses a P43t base, which is a bayonet-style mount with a 43mm flange width, and this base type determines physical fitment into the headlight socket.
The 9003 designation is an ANSI standard recognized in the United States and Canada, and it is functionally equivalent to the European H4 bulb, though the two designations originate from different standardization bodies.
Because the Indian Chieftain (2014-2018) uses the same 9003 bulb for both beam positions, the high beam and low beam are not served by separate bulbs and cannot be replaced independently of one another.