The International 908C uses a 194 bulb size for front side marker applications and a 97 bulb size for rear side marker applications. The replacement chart covers 1968 to 1969 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 908C uses two distinct bulb types across its front and rear side marker positions for the 1968-1969 model years, with the 194 assigned to the front and the 97 assigned to the rear.
The 194 is a T10 miniature wedge bulb rated at 12V and 3.78W, conforming to ANSI standards recognized in both the United States and Canada.
The wedge base of the 194 requires no metal base shell, as the glass envelope itself acts as the retention mechanism when inserted into a compatible socket.
The 97 is a single-filament bulb with a BA15s bayonet base, rated at 12V and 13W, also conforming to ANSI standards recognized in both the United States and Canada.
At 13W, the 97 draws considerably more power than the 3.78W 194, reflecting the greater light output typically expected of rear side marker positions on commercial vehicles of that era.
The 97 is noted as a variant of the 1156 bulb family. While the two share a BA15s bayonet base, the 97 and 1156 differ in wattage and are not universally interchangeable without confirming socket and circuit compatibility.
The BA15s designation on the 97 indicates a single-contact bayonet base with a 15mm collar, which is distinct from the BA15d double-contact variant and the two are not cross-compatible.
The front side marker specification for the International 908C remains consistent across both the 1968 and 1969 model years under the Light Duty classification, with no variation in bulb size recorded between those years.
The rear side marker specification similarly shows no change between 1968 and 1969 under the Light Duty classification, with the 97 bulb retained across both years.