International 1200D front side marker bulbs measure 194 in size, while rear side marker bulbs measure 97 in size. The replacement chart covers 1969 to 1970 vehicle production 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 1200D uses two distinct bulb types across its side marker positions for the 1969-1970 model years: the 194 at the front and the 97 at the rear.
The 194 is an ANSI-standardized miniature wedge bulb in the T10 form factor, rated at 12V and 3.78W, making it a low-wattage lamp suited for marker and clearance lighting applications.
The T10 wedge base of the 194 requires no locking mechanism, as the bulb is held in place by the socket walls alone, which distinguishes it from pin-base or bayonet-base designs.
The 97 is an ANSI-standardized single-filament bulb rated at 12V and 13W, drawing significantly more power than the 194 used at the front positions.
The 97 uses a BA15s bayonet base, which is a single-contact bayonet mount with a 15mm collar, and is noted as a variant of the 1156 bulb family.
Although the 97 is related to the 1156, the two are not directly interchangeable in all applications, as wattage and base pin configurations can differ between variants within that family.
Both the 194 and 97 conform to ANSI standards recognized in the United States and Canada, indicating standardized dimensional and electrical tolerances for those markets.
The Light Duty designation applies to both marker positions across the 1969-1970 model years, indicating these specifications correspond to the lighter vehicle configuration of the 1200D rather than a heavier-rated variant.