The International R122 high beam and low beam headlight bulbs both utilize the H6024 bulb size. The replacement chart covers vehicle production spanning 1953 to 1955.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The H6024 is a 7-inch round sealed beam unit operating at 12 volts, built to ANSI standards recognized in both the United States and Canada.
Unlike bulb-and-reflector assemblies, the H6024 is a self-contained sealed beam, meaning the entire unit is replaced rather than an internal bulb.
The International R122 uses the H6024 across both the high beam and low beam headlight positions for the 1953-1955 model years.
Because the same H6024 unit serves both beam functions on the International R122, the vehicle does not use separate bulb types for high and low beam operation.