The International SA120 uses H6024 bulb size for both high beam and low beam headlight applications. The replacement chart covers vehicle production spanning 1956 to 1957.
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 specified across all listed positions and years for the International SA120, covering both high beam and low beam headlight functions for 1956-1957.
The H6024 is a 7-inch round sealed beam unit operating at 12 volts. It conforms to ANSI standards recognized in the United States and Canada.
A sealed beam unit integrates the filament, reflector, and lens into a single non-serviceable assembly. When the filament fails, the entire unit is replaced rather than an internal bulb.
The H6024 serves dual headlight positions on the International SA120, functioning as both the high beam and low beam unit. This indicates a single-filament or shared sealed beam arrangement rather than separate dedicated units for each function.
The ANSI standardization of the H6024 means the unit conforms to fixed physical and electrical specifications, which historically allowed interchangeability across different vehicle makes and models using the same standard.