The Edsel Corsair uses an H5001 bulb size for high beam headlights and an H5006 bulb size for low beam headlights. The replacement chart covers 1958 to 1959 model 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 H5001 is a 4-inch square sealed beam unit operating at 12V and conforming to ANSI standards recognized in both the United States and Canada. Rather than housing a replaceable internal bulb, the entire sealed unit is replaced when the light fails.
The H5006 is a 5.75-inch round sealed beam unit, also rated at 12V and built to the same ANSI standard. Like the H5001, it functions as a single self-contained assembly that is replaced as a whole.
The Edsel Corsair uses the H5001 for high beam headlights across the 1958-1959 model years, and the H5006 for low beam headlights across the same span.
The simultaneous use of two distinct sealed beam sizes, one square and one round, reflects a dual-headlamp configuration in which each position requires a physically different unit that is not interchangeable with the other.
Because both the H5001 and H5006 are sealed beam assemblies, any attempt to replace only an internal filament is not applicable to either type. The entire unit must be sourced and installed as a replacement.