Mercury Comet high beam and low beam headlight bulbs utilize H6024, H5001, and H5006 bulb sizes depending on configuration. The replacement chart covers vehicle production years spanning 1960 to 1977 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 Mercury Comet uses two distinct sealed beam generations across its production run. The 1960-1969 model years rely on sealed beam units from the H5001 and H5006 families, while the 1971-1977 model years use the H6024 for both high and low beam positions.
The H6024 is a 7-inch round sealed beam unit operating at 12V and conforming to ANSI standards recognized in the United States and Canada. It serves as both the high beam and low beam unit on the Mercury Comet from 1971-1977, meaning a single bulb type covers both functions across those years.
The H5001 is a 4-inch square sealed beam unit operating at 12V under the same ANSI standard. It fills the high beam position on the Mercury Comet for the 1960-1969 model years.
The H5006 is a 5.75-inch round sealed beam unit operating at 12V. It occupies the low beam position on the Comet for the 1960-1969 model years, making it a distinct unit from the H5001 despite both serving the same vehicle generation.
All three bulb types, H6024, H5001, and H5006, are sealed beam units. In a sealed beam design, the reflector, lens, and filament are fused into a single glass assembly, so the entire unit is replaced rather than an internal bulb element.
The 1960-1969 Comet uses a two-unit headlight system with separate high and low beam sealed beams, the H5001 and H5006 respectively. The 1971-1977 Comet uses a single sealed beam type, the H6024, for both functions, which reflects a different headlight housing configuration between the two eras.
The H5001 and H5006 are not interchangeable with each other despite both being ANSI-standard sealed beams used on the same vehicle generation. They differ in physical form, with the H5001 being a 4-inch square unit and the H5006 being a 5.75-inch round unit, and they serve different beam positions.
No Comet model year listed in the specifications uses a halogen or replaceable-bulb headlight system. All listed fitments across 1960-1977 are sealed beam assemblies governed by ANSI standards.