The International B100 high beam and low beam headlight bulbs both utilize the H6024 size. The replacement chart covers 1959 to 1960 vehicle 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 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.
Sealed beam units such as the H6024 do not contain a replaceable filament bulb. When the unit fails, the entire assembly is replaced as a single component.
The International B100 uses the H6024 for both the high beam and low beam headlight positions across the 1959-1960 model years.
Because the same H6024 unit serves both beam functions on the International B100, the vehicle relies on a dual-filament sealed beam design rather than separate housings for each beam type.