International L110 vehicles utilized 194 bulb size for front side marker applications and 97 bulb size for rear side marker installations. The replacement chart covers 1950 to 1952 production years 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 International L110 uses the 194 bulb for the front side marker position across the 1950-1952 model years, and the 97 bulb for the rear side marker position across the same span.
The 194 is an ANSI-standardized miniature wedge bulb of the T10 type, rated at 12 volts and 3.78 watts. Its wedge base design means it requires no separate metal base, as the glass envelope itself acts as the retention mechanism within the socket.
The 97 is an ANSI-standardized single-filament bulb rated at 12 volts and 13 watts. It uses a BA15s bayonet base, which is a single-contact bayonet mount with a 15mm collar.
The 97 bulb is noted as a variant of the 1156. While both share the BA15s bayonet base, the 97 operates at a lower wattage than the 1156, which is rated at approximately 26.9 watts. These two bulbs are not interchangeable despite the shared base type.
Both the 194 and 97 carry ANSI standardization applicable to the United States and Canada, meaning their physical and electrical specifications conform to a defined industry standard within those markets.
The rear side marker draws significantly more wattage than the front, with the 97 rated at 13W compared to the 194 at 3.78W. This difference reflects the distinct functional and visibility requirements typically associated with rear marker lighting.