Chevrolet One-Fifty Series high beam and low beam headlight bulb sizes H6024 and H6006 are specified in this replacement chart. The chart covers vehicle production years spanning 1953 to 1957 with corresponding bulb size data.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Chevrolet One-Fifty Series uses two sealed beam unit types across its model years: the H6024 and the H6006. Both conform to ANSI standards recognized in the United States and Canada and operate on a 12V electrical system.
The H6024 is a 7-inch round sealed beam unit. Because it is a sealed beam design, the entire unit is replaced rather than an internal filament or bulb element.
The H6006 is a 5x7-inch rectangular sealed beam unit and shares the same sealed beam construction, requiring full unit replacement when the light fails.
The 1955-1957 One-Fifty Series uses the H6024 for both high beam and low beam headlight positions. A single unit type serves both functions across those years.
The 1953-1954 One-Fifty Series uses the H6006 for both high beam and low beam positions, meaning the rectangular unit is the correct fitment for those earlier model years.
The H6024 and H6006 are not interchangeable. The round and rectangular form factors are physically distinct, and substituting one for the other is not supported by the specifications for any model year listed.