International B132 side marker bulbs utilize 194 size for front applications and 97 size for rear positions. The replacement chart covers 1959 to 1960 model years with corresponding bulb specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The International B132 uses two distinct bulb types across its front and rear side marker positions: the 194 for the front and the 97 for the rear, both conforming to ANSI standards recognized in the US and Canada.
The 194 bulb is a T10 miniature wedge type rated at 12V and 3.78W, placing it in the low-wattage range typical of parking and marker lamp applications.
The 97 bulb uses a BA15s single-contact bayonet base and is rated at 12V and 13W, making it significantly higher in wattage than the front marker bulb used on the same vehicle.
The 97 is noted as a variant of the 1156 bulb. Despite this relationship, the two are not identical, and substitution between them warrants attention to base and filament compatibility before installation.
The T10 wedge base of the 194 and the BA15s bayonet base of the 97 are physically incompatible socket types, meaning the front and rear marker sockets on the International B132 (1959-1960) are not interchangeable with each other.
Both bulb types apply to the Light Duty classification of the International B132 across the 1959-1960 model years.