The International C100 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 the sole bulb type listed across all headlight positions for the International C100, covering both 1961-1962 model years.
The H6024 is a 7-inch round sealed beam unit operating at 12 volts. It conforms to ANSI standards as recognized in the United States and Canada.
A sealed beam unit differs from a conventional bulb in that the filament, reflector, and lens are fused into a single assembly. When the filament fails, the entire unit requires replacement rather than just an internal bulb.
The H6024 serves both the high beam and low beam functions on the International C100. A single sealed beam type fulfilling both roles indicates a dual-filament construction within one unit.
Because the H6024 is a standardized ANSI unit, it was produced by multiple manufacturers to identical specifications, meaning physical and electrical interchangeability exists across compliant units of the same designation.
The 7-inch round form factor was a regulated standard in North American automotive lighting during this period, and the H6024 designation specifically identifies a unit built to those regulated dimensions and performance criteria.