The International L153 uses H6024 bulb size for both high beam and low beam headlight applications. The replacement chart covers 1950 to 1952 vehicle production years with corresponding bulb specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The International L153 uses the H6024 bulb type across all listed model years and across both the high beam and low beam positions, making it the sole bulb type present in these specifications.
The H6024 is an ANSI-standard sealed beam unit recognized in both the United States and Canada, operating at 12 volts.
A sealed beam unit integrates the filament, reflector, and lens into a single glass assembly, which means the entire unit is replaced rather than an internal bulb.
The H6024 follows a 7-inch round form factor, a standardized size that was regulated under U.S. federal motor vehicle safety standards and was common across many North American vehicles of that era.
On the International L153 (1950-1952), the H6024 specification is identical for both the high beam and low beam headlight positions, indicating the vehicle used a dual-filament or interchangeable sealed beam arrangement rather than separate units for each function.
Because the H6024 conforms to ANSI standardization, units from different manufacturers sharing that designation are generally interchangeable, provided they meet the same voltage and form factor requirements.