The International 150 uses H6024 bulb size for both high beam and low beam headlight applications. The replacement chart covers vehicle production spanning 1974 to 1975.
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 these specifications, appearing in both the high beam and low beam roles for the 1974-1975 International 150.
The H6024 is a 7-inch round sealed beam unit operating at 12 volts. It conforms to ANSI standards recognized in both the United States and Canada.
A sealed beam unit integrates the filament, reflector, and lens into a single fused glass assembly. When the filament fails, the entire unit requires replacement rather than an internal bulb swap.
Because the H6024 serves both the high beam and low beam positions in these specifications, the same sealed beam unit is used across all four headlight sockets on the vehicle.
The 7-inch round form factor of the H6024 is a standardized size, meaning units from different manufacturers conforming to the same ANSI specification are generally interchangeable with one another.