The International C102 uses H6024 bulb size for both high beam and low beam headlight applications. The replacement chart covers 1961 to 1962 vehicle 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 H6024 is a 7-inch round sealed beam unit operating at 12 volts. It follows the ANSI standard used across the United States and Canada, meaning the entire housing, lens, and filament are fused into one assembly. When the filament fails, the whole unit is replaced rather than an internal bulb.
The International C102 uses the H6024 for both high beam and low beam headlight positions across the 1961-1962 model years. A single bulb type serving both functions was a common design in sealed beam systems of that era, where separate high and low beam filaments were contained within the same unit.
Because the H6024 is a sealed beam rather than a bulb-and-socket design, fitment is determined by the physical size and shape of the unit rather than a socket type. The 7-inch round format was a standardized size, which means H6024 units from different manufacturers are generally interchangeable as long as they meet the same ANSI specification.