The Indian Chief Classic uses 1156 bulb size for both front and rear turn signal applications. The replacement chart covers 2010 to 2013 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 Indian Chief Classic uses the 1156 bulb across all listed model years (2010-2013) for both front and rear turn signals.
The 1156 is a single-filament bulb, meaning it is wired to perform one lighting function only, which in this context is turn signaling.
It operates on a 12-volt electrical system and draws 21 watts, figures typical of incandescent automotive turn signal applications.
The 1156 uses a BA15s bayonet base, a single-contact mount where the bulb is inserted and twisted to lock into place.
The ANSI designation confirms the 1156 meets a standardized specification recognized in both the United States and Canada.
Because the front and rear turn signal positions share the same bulb type on the Indian Chief Classic, a single replacement bulb serves both locations.
The BA15s base is not interchangeable with the BA15d base, which is a dual-contact variant used in dual-filament applications such as combined stop and tail functions.