The International B130 uses a 198 bulb size for both front and rear turn signal applications. The replacement chart covers 1959 to 1960 production years.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The International B130 uses the 198 bulb for both front and rear turn signals across the 1959-1960 model years.
The 198 is an ANSI-standardized bulb type, meaning its specifications conform to a defined North American standard recognized in both the United States and Canada.
The 198 bulb follows a T5 miniature wedge form factor, which refers to a small tubular glass envelope measuring 5/8 of an inch in width, fitted with a wedge-style base that requires no separate socket pins.
The 198 operates at 12 volts and draws 2 watts, placing it among the lower-output bulbs used in automotive signaling applications.
The wedge base design of the 198 means the bulb is held in place by tension from the socket itself rather than by a bayonet or screw mechanism.
The Light Duty designation associated with the 198 bulb in these specifications indicates the vehicle trim or weight class for which this fitment applies on the International B130.
Because the same 198 bulb size is specified for all four turn signal positions on the B130, front and rear assemblies share a common bulb type across both listed model years.