The Pontiac Super Chief uses H5001 and H6024 bulb sizes for high beam headlights, while low beam headlights require H5006 and H6024 sizes. The replacement chart covers 1957 to 1958 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 Pontiac Super Chief uses three distinct sealed beam unit types across its 1957-1958 model years: H5001, H5006, and H6024, all of which conform to ANSI standards recognized in both the United States and Canada.
All three sealed beam types operate on a 12V electrical system, meaning none require voltage conversion or special wiring considerations relative to standard 12V automotive electrical systems of the period.
Sealed beam units are self-contained lamp assemblies in which the filament, reflector, and lens are fused into a single unit. When a filament fails, the entire assembly is replaced rather than an internal bulb component.
The H6024 is a 7-inch round sealed beam unit and serves as both the high beam and low beam headlight on the 1957 Super Chief, meaning a single unit type covers both functions for that model year.
The 1958 Super Chief uses a split headlight system, with the H5001 assigned to the high beam position and the H5006 assigned to the low beam position. These two units are not interchangeable with each other.
The H5001 is a 4-inch square sealed beam unit, a form factor distinct from the round units used elsewhere in these specifications. Square and round sealed beam housings are not physically interchangeable.
The H5006 is a 5.75-inch round sealed beam unit, which differs in size from the 7-inch H6024. Despite both being round sealed beam units, the difference in size means the H6024 cannot serve as a substitute for the H5006.