The Ford Gran Torino high beam headlight uses an H5001 bulb size while the low beam headlight requires an H5006 bulb size. The replacement chart covers vehicle production spanning 1972 to 1976 with corresponding bulb size specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Ford Gran Torino uses two distinct sealed beam units across its 1972-1976 model years: the H5001 for high beam and the H5006 for low beam.
The H5001 is a 4-inch square sealed beam unit operating at 12V, conforming to ANSI standards recognized in both the United States and Canada.
The H5006 is a 5.75-inch round sealed beam unit, also rated at 12V and built to the same ANSI standard as the H5001.
Both the H5001 and H5006 are sealed beam units, meaning the lens, reflector, and filament are fused into a single assembly. When the filament fails, the entire unit requires replacement rather than an internal bulb swap.
The square profile of the H5001 and the round profile of the H5006 make the two units physically incompatible with each other, and one cannot serve as a substitute for the other in any position.
The H5001 high beam specification remains unchanged across all five model years covered, indicating a consistent fitment with no year-specific variation within the 1972-1976 range.
The H5006 low beam specification is equally consistent across the same 1972-1976 range, with no variation between model years.
Because both bulb types follow ANSI standards, replacement units sourced from either the United States or Canadian markets are considered interchangeable within those regions.