The International L120 uses a 198 bulb size for both front and rear turn signal applications. The replacement chart covers vehicle production spanning 1950 to 1952.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The International L120 uses the 198 bulb for both front and rear turn signals across the 1950-1952 model years.
The 198 is an ANSI-standardized bulb, meaning it conforms to a defined specification recognized across the United States and Canada.
The 198 bulb is classified as a miniature wedge type in the T5 form factor, which refers to a tubular bulb roughly 5/8 of an inch wide that seats by wedging directly into its socket without a separate base.
The 198 operates at 12 volts and draws 2 watts, placing it among the lower-output bulbs used in automotive signaling applications.
The front and rear turn signal positions on the International L120 share the same bulb specification across all three listed model years, indicating socket and electrical compatibility between those positions.
The Light Duty designation applies to all listed entries for both the front and rear turn signal positions on the L120.