International Scout front and rear side marker bulbs utilize 194 and 97 bulb sizes respectively. The replacement chart covers 1961 through 1971 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 Scout uses the 194 bulb for the front side marker position across all 1961-1971 model years in the Light Duty classification.
The 194 is a T10 miniature wedge bulb rated at 12V and 3.78W, conforming to ANSI standards recognized in both the US and Canada.
The rear side marker position on the International Scout uses the 97 bulb across all 1961-1971 model years in the Light Duty classification.
The 97 bulb operates on a BA15s single-contact bayonet base and is rated at 12V and 13W, making it significantly higher in wattage than the 194 used at the front.
The 97 bulb is a single-filament type and a variant of the 1156, though the two are not the same part and are not listed as interchangeable in these specifications.
The front and rear side marker positions on the Scout require different bulb types, with the wedge-base 194 at the front and the bayonet-base 97 at the rear, meaning the two positions are not cross-compatible.
Both the 194 and the 97 conform to ANSI standards applicable in the US and Canada.