International C132 utilizes a 194 bulb size for the front side marker and a 97 bulb size for the rear side marker. The replacement chart covers 1961 to 1962 vehicle production specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The International C132 uses two distinct bulb types across its front and rear side marker positions for the 1961-1962 model years, with each position requiring a specific and non-interchangeable bulb.
The 194 bulb is a T10 miniature wedge type rated at 12V and 3.78W, classified under the ANSI standard for the US and Canadian markets.
The T10 wedge form factor of the 194 bulb means it seats directly into a wedge-style socket without a separate base, relying on the bulb's own leads for retention and electrical contact.
The 97 bulb is a single-filament type with a BA15s bayonet base, rated at 12V and 13W, also classified under the ANSI standard for the US and Canadian markets.
The BA15s designation indicates a single-contact bayonet base with a 15mm collar, which positions and locks the bulb through a quarter-turn rotation into its socket.
The 97 bulb is noted as a variant of the 1156, meaning the two share the same BA15s base and general single-filament configuration, though the 97 operates at a lower wattage than the standard 1156.
The wattage difference between the front 194 (3.78W) and rear 97 (13W) reflects their respective roles, with the higher-output 97 serving the rear side marker function on the International C132.
Both bulb types are designated for Light Duty trim across the 1961-1962 model years, and no other trim classifications are associated with these positions in the specifications.
The 194 and 97 bulbs are physically and electrically incompatible with each other due to their differing base types, wattages, and socket designs, making cross-position substitution not possible.