The International S1753 uses H6024 bulb size for both high beam and low beam headlight applications. The replacement chart covers 1984 to 1989 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 International S1753 uses the H6024 bulb size for both high beam and low beam headlights across all listed model years, spanning 1984-1989.
The H6024 is an ANSI-standardized sealed beam unit recognized across the United States and Canada, meaning its physical and electrical specifications conform to a defined national standard rather than a proprietary manufacturer format.
The H6024 takes the form of a 7-inch round sealed beam unit, in which the lens, reflector, and filament are fused into a single glass assembly.
Because the H6024 is a sealed beam unit, the entire assembly is replaced when the light fails, as the filament is not accessible or separately serviceable.
The H6024 operates at 12 volts, consistent with the standard electrical system voltage found in most production road vehicles of this era.
The International S1753 uses the same H6024 unit for both the high beam and low beam functions, indicating that a single sealed beam type serves dual lighting roles rather than requiring separate bulb types for each function.
The ANSI standardization of the H6024 means that units produced by different manufacturers are generally interchangeable, provided they carry the same H6024 designation and meet the same voltage rating.