International 1210 vehicles utilized 194 bulb size for front side marker applications and 97 bulb size for rear side marker positions. The replacement chart documents bulb specifications across 1971 to 1973 production years.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The International 1210 uses two distinct bulb types across its front and rear side marker positions: the 194 and the 97, both conforming to ANSI standards recognized in the United States and Canada.
The 194 is a T10 miniature wedge bulb rated at 12V and 3.78W, placing it in the low-wattage range typical of marker and courtesy lighting applications.
The 97 is a single-filament bulb with a BA15s bayonet base, rated at 12V and 13W, representing a significantly higher wattage than the 194 used at the front.
The 97 is a variant of the 1156 bulb family, sharing the BA15s single-contact bayonet base, though the two are not identical and the distinction is relevant to fitment.
The front side marker position on the 1210 uses the 194 bulb across the 1971-1973 model years, with the 1971 and 1972 entries carrying a Light Duty designation.
The rear side marker position on the 1210 uses the 97 bulb across all three listed model years, 1971-1973, with all entries carrying a Light Duty designation.
The absence of a Light Duty qualifier on the 1973 front side marker entry, while present on the 1971 and 1972 entries, indicates a difference in how that model year was classified within the specifications.
The wedge base of the 194 and the BA15s bayonet base of the 97 are mechanically incompatible with each other, meaning the two bulb types are not interchangeable between front and rear positions.