Ford Fairlane high beam and low beam headlight bulbs utilized sizes H5001, H6024, and H6006, with specific bulb configurations varying across model generations. The replacement chart documents bulb size specifications across 1955 to 1970 vehicle production years.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Ford Fairlane headlight specifications span the 1955-1970 model years, covering three distinct sealed beam formats across the high beam and low beam positions.
All four bulb types listed, the H5001, H6024, H6006, and H5006, are ANSI-standardized sealed beam units rated at 12V. In each case, the entire sealed beam assembly is replaced as a single unit rather than an internal filament or capsule.
The H5001 is a 4-inch square sealed beam unit used for the high beam position on the Ford Fairlane across the 1958-1970 model years. Its square format is a defining characteristic of the dual-headlight systems common to North American vehicles of that era.
The H5006 is a 5.75-inch round sealed beam unit and serves as the low beam counterpart to the H5001, covering the same 1958-1970 range. The pairing of a square high beam with a round low beam reflects the four-headlight system layout standardized in the United States from 1958 onward.
The 1956-1957 Fairlane used the H6024 for both high beam and low beam positions. The H6024 is a 7-inch round sealed beam unit, which was the prevailing single-unit headlight format before the adoption of the four-lamp system.
The 1955 Fairlane used the H6006 for both positions. The H6006 is a 5x7-inch rectangular sealed beam unit, a format that predates the widespread adoption of the round 7-inch standard.
Because the H5001 and H5006 are not interchangeable with each other despite both being used in the 1958-1970 system, the position (high beam versus low beam) is a critical factor when sourcing a replacement unit for those years.
The shift from the H6006 in 1955 to the H6024 in 1956-1957, and then to the H5001/H5006 pairing from 1958 onward, reflects successive changes in the sealed beam formats specified for the Fairlane across its production run.