Oldsmobile Jetfire high beam headlight bulbs measure H5001 in size, while low beam headlight bulbs measure H5006 in size. The replacement chart covers 1962 through 1963 model 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 Oldsmobile Jetfire uses two distinct sealed beam types across its headlight system: the H5001 for high beam and the H5006 for low beam, both conforming to ANSI standards recognized in the United States and Canada.
The H5001 is a 4-inch square sealed beam unit operating at 12V. Because it is a sealed beam, the lens, reflector, and filament are fused into a single housing, meaning the entire unit is replaced rather than an internal bulb.
The H5006 is a 5.75-inch round sealed beam unit, also rated at 12V and sharing the same sealed construction as the H5001, requiring full unit replacement when the filament fails.
Both the H5001 and H5006 fitments apply uniformly across the 1962-1963 model years of the Jetfire, with no variation in bulb size between those years for either the high beam or low beam positions.
The square format of the H5001 and the round format of the H5006 are physically incompatible with each other, as the housings differ in both shape and size, making cross-substitution between the two types impossible.
ANSI standardization of both units means that any H5001 or H5006 sealed beam produced to that standard by different manufacturers is dimensionally and electrically equivalent, allowing interchangeability within the same part designation.