Ford C700 front and rear side marker bulbs utilize 168, 194, and 97 sizes depending on location and model variation. The replacement chart covers 1980 to 1986 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 Ford C700 front side marker position uses two distinct bulb sizes across its model years, with the 168 fitted to 1983-1986 models and the 194 fitted to 1980-1982 models.
The Ford C700 rear side marker position draws from three different bulb sizes depending on the year, with the 194 used in 1983-1984, the 168 used in 1981-1982, and the 97 used in 1980.
The 168 and 194 are both ANSI-standardized miniature wedge bulbs sharing the T10 form factor and a 12V operating voltage, which means they are physically interchangeable in terms of socket fitment.
Despite their shared T10 socket and voltage rating, the 168 operates at 4.9W while the 194 operates at 3.78W, making them electrically distinct and not direct substitutes for one another.
The 97 bulb used in the 1980 rear side marker position is a single-filament bulb with a BA15s bayonet base, a fundamentally different mounting type from the wedge base of the 168 and 194, meaning it is not interchangeable with either of those bulbs.
The 97 is classified as a variant of the 1156 bulb family but operates at 13W, which is substantially higher than both the 168 and 194, reflecting its use in a different lighting application within the same vehicle.
The BA15s bayonet base of the 97 bulb requires a socket with a single locating pin, a design that differs mechanically from the friction-fit wedge sockets used by T10 bulbs such as the 168 and 194.
All three bulb types referenced in these specifications, the 168, 194, and 97, conform to ANSI standards applicable in both the United States and Canada.