Plymouth Belvedere II headlight bulbs utilize H5001 and H6024 sizes for high beam applications, with H5006 and H6024 sizes serving low beam functions in this bulb size reference. The replacement chart covers vehicle production spanning 1965 to 1967, detailing bulb specifications across the model years.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Plymouth Belvedere II uses three distinct sealed beam unit types across its headlight positions and model years: H5001, H5006, and H6024.
All three sealed beam types operate on 12V and conform to ANSI standards recognized in both the United States and Canada. In sealed beam construction, the reflector, lens, and filament are fused into a single glass unit, meaning the entire assembly is replaced rather than an internal bulb.
The H6024 is a 7-inch round sealed beam unit. It serves as both the high beam and low beam headlight for the 1965-1966 model years, meaning a single unit type covers both functions on those vehicles.
The 1967 model year introduced a split headlight configuration, with separate bulb types assigned to each beam function rather than a shared unit.
The H5001, used as the 1967 high beam, is a 4-inch square sealed beam unit. Square sealed beam housings of this size were a common format in American automotive lighting during the period when dual rectangular headlight systems were adopted.
The H5006, used as the 1967 low beam, is a 5.75-inch round sealed beam unit. Its round form factor differs from the square H5001 used alongside it, which means the two 1967 headlight positions are not interchangeable with each other.
The H6024 units used in 1965-1966 are not interchangeable with either the H5001 or H5006 units used in 1967, as all three differ in physical form factor and designated beam function.