Dodge Suburban headlight bulbs utilize H5001 size for high beam and H5006 size for low beam applications. The replacement chart covers 1957 to 1958 vehicle production years 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 H5001 and H5006 are sealed beam units, meaning the lens, reflector, and filament are fused into a single glass assembly. When the filament fails, the entire unit requires replacement rather than an internal bulb swap.
The H5001 is a 4-inch square sealed beam unit operating at 12V, used for the high beam position on the Dodge Suburban across the 1957-1958 model years.
The H5006 is a 5.75-inch round sealed beam unit also operating at 12V, assigned to the low beam position across the same 1957-1958 model years.
Both the H5001 and H5006 conform to ANSI standards recognized in the United States and Canada, indicating standardized physical and electrical specifications across compliant manufacturers.
The square format of the H5001 and the round format of the H5006 are physically distinct, and the two units are not interchangeable between the high and low beam positions.
Because both units are sealed beam types governed by ANSI standards, compliant replacements from different manufacturers are generally dimensionally and electrically equivalent to the original units.