Ford Mustang II high beam and low beam headlight bulbs both utilize the H6024 size. The replacement chart covers 1974 to 1978 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 Ford Mustang II uses the H6024 bulb size across all model years from 1974-1978, serving both the high beam and low beam headlight positions throughout the entire production run.
The H6024 is a sealed beam unit, meaning the lens, reflector, and filament are fused into a single glass assembly. When the filament fails, the entire unit is replaced rather than an internal bulb.
The H6024 follows the ANSI standard recognized in both the United States and Canada, placing it within a regulated specification for round sealed beam headlights.
The unit is a 7-inch round sealed beam, which was a common standardized format in North American automotive lighting during the era these vehicles were produced.
The H6024 operates at 12 volts, consistent with the standard electrical system voltage found in passenger vehicles of this type.
Because the H6024 is a standardized ANSI unit, it is generally interchangeable across different makes and models that share the same sealed beam specification, provided the mounting hardware is compatible.
The high beam and low beam positions on the Ford Mustang II use the same H6024 unit. The H6024 sealed beam contains dual filaments, allowing a single unit to serve both lighting functions.