The International S1925 uses H6024 bulbs for both high beam and low beam headlight applications, with this bulb size representing the standardized specification across both functions. The replacement chart covers 1980 to 1982 production years and documents the corresponding bulb size specifications for headlight assemblies.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The H6024 is an ANSI-standard sealed beam unit used across the International S1925 for both high beam and low beam headlight positions across the 1980-1982 model years.
A sealed beam unit differs from a conventional bulb in that the filament, reflector, and lens are fused into a single assembly, meaning the entire unit is replaced rather than an internal bulb.
The H6024 is a 7-inch round format, which was a regulated standard size in North America during the period these vehicles were produced.
The H6024 operates at 12 volts, consistent with standard automotive electrical systems of that era.
Because the H6024 serves both the high beam and low beam positions on the International S1925, the vehicle uses a dual-function sealed beam arrangement rather than separate single-function units for each beam.
The H6024 specification applies to both the United States and Canadian markets, as indicated by its ANSI classification covering both countries.