The Sunbeam Arrow front and rear turn signal bulbs both utilize a 1156 size bulb for proper operation. The replacement chart covers vehicle production spanning 1967 to 1970 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 1156 is the sole bulb type specified for the Sunbeam Arrow across all listed turn signal positions and model years.
The 1156 is an ANSI-standard bulb recognized in both the United States and Canada, operating at 12 volts and 21 watts.
As a single-filament bulb, the 1156 serves one electrical function per unit, which aligns with its dedicated turn signal role rather than a combined stop/turn application.
The 1156 uses a BA15s bayonet base, a single-contact fitting where the "s" denotes a single pin, distinguishing it from the dual-contact BA15d base found on some other automotive bulbs.
The front and rear turn signals of the Sunbeam Arrow share the same 1156 specification across the 1967-1970 model years, indicating interchangeability between those positions.
The BA15s base type is not universally interchangeable with BA15d sockets; substituting one for the other is not supported by these specifications.