The International S1824 uses H6024 bulb size for both high beam and low beam headlight applications. The replacement chart covers vehicle production spanning 1980 to 1985.
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 headlight positions on the International S1824, covering model years 1980-1985.
The H6024 is an ANSI-standard sealed beam unit recognized in both the United States and Canada, operating at 12 volts.
Sealed beam units such as the H6024 house the filament, reflector, and lens within a single fused glass assembly, meaning the entire unit is replaced rather than an internal bulb.
The H6024 follows a 7-inch round form factor, a standardized size that allows for cross-brand interchangeability as long as the replacement unit also carries the H6024 designation.
On the International S1824, the H6024 serves both the high beam and low beam functions, indicating the vehicle uses a dual-filament sealed beam design rather than separate single-filament units for each function.
Because the H6024 is a sealed beam rather than a bulb-and-housing system, fitment is governed by the physical size and electrical rating of the unit rather than by socket or base type compatibility.