The International 900A uses H6024 bulb size for both high beam and low beam headlight applications. The replacement chart covers 1966 to 1967 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 900A, covering both 1966-1967 model years.
The H6024 is an ANSI-standard sealed beam unit used in both the United States and Canada, operating at 12 volts.
Sealed beam units such as the H6024 do not contain a replaceable filament or bulb element. When the unit fails, the entire assembly is replaced as a single component.
The H6024 follows a 7-inch round form factor, which is a standardized size in North American sealed beam headlight design, allowing interchangeability across vehicles that share the same specification.
The International 900A uses the same H6024 specification for both high beam and low beam headlight positions, indicating that a single sealed beam unit serves dual-beam functions rather than separate units for each beam type.