The International 1310 uses H6024 bulb size for both high beam and low beam headlight applications. The replacement chart covers vehicle production spanning 1971 to 1973.
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 in the International 1310 specifications, appearing in both high beam and low beam applications for 1971-1973.
The H6024 is a 7-inch round sealed beam unit operating at 12 volts, conforming to ANSI standards recognized in both the United States and Canada.
As a sealed beam unit, the H6024 is not a replaceable bulb in the conventional sense. When the light fails, the entire sealed unit is replaced rather than an internal filament or capsule.
The high beam and low beam positions in the International 1310 (1971-1973) share the same H6024 specification, which is consistent with sealed beam headlight systems of that era that used separate identical units for each function.
The ANSI standardization of the H6024 means the unit conforms to fixed dimensional and photometric requirements, making it interchangeable with any other H6024-rated sealed beam regardless of manufacturer.