Plymouth Belvedere Headlight Bulb Size

Plymouth Belvedere high beam and low beam headlight bulbs utilize H5001, H6024, H6006, and H5006 sizes depending on model year, with the bulb size varying across the vehicle's production span. The replacement chart covers 1953 through 1971 model years and correlates each production year to corresponding headlight bulb specifications.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

High Beam Headlight

Years	Bulb Size
1967-1971	H5001
1965-1966	H6024
1957-1964	H5001
1956	H6024
1953-1955	H6006

Low Beam Headlight

Years	Bulb Size
1967-1971	H5006
1965-1966	H6024
1957-1964	H5006
1956	H6024
1953-1955	H6006

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). 4-inch square sealed beam unit. Not a replaceable bulb — the entire unit is replaced. 12V.	H5001
ANSI standard (US & Canada). 7-inch round sealed beam unit. Not a replaceable bulb — the entire unit is replaced. 12V.	H6024
ANSI standard (US & Canada). 5x7-inch rectangular sealed beam unit. Not a replaceable bulb — the entire unit is replaced. 12V.	H6006
ANSI standard (US & Canada). 5.75-inch round sealed beam unit. Not a replaceable bulb — the entire unit is replaced. 12V.	H5006

Other Locations

Additional Notes

The Plymouth Belvedere headlight specifications reference four sealed beam bulb types across its model years: H5001, H5006, H6024, and H6006. All four conform to ANSI standards recognized in both the United States and Canada and operate on 12V electrical systems.
All four bulb types are sealed beam units, meaning the lens, reflector, and filament are fused into a single assembly. When a filament fails, the entire unit requires replacement rather than an internal bulb swap.
The H5001 is a 4-inch square sealed beam unit designated for the high beam function. It appears across the widest range of model years in the specifications, covering 1957-1964 and 1967-1971.
The H5006 is a 5.75-inch round sealed beam unit designated for the low beam function. Its fitment years mirror those of the H5001, spanning 1957-1964 and 1967-1971, reflecting a two-lamp headlight system where high and low beams occupy separate housings.
The H6024 is a 7-inch round sealed beam unit used for both high and low beam functions on the 1956 and 1965-1966 model years. Its use for both functions indicates a single-lamp-per-side headlight arrangement rather than a dedicated dual-lamp setup.
The H6006 is a 5x7-inch rectangular sealed beam unit, also serving both high and low beam functions, fitted to the 1953-1955 model years. Like the H6024, its dual-function role points to a single-lamp headlight configuration.
The H5001 and H5006 are not interchangeable with each other despite both being used in the same model years. The H5001 is a 4-inch square unit for high beam, while the H5006 is a 5.75-inch round unit for low beam, and their physical form factors differ entirely.
The H6024 and H6006 each serve both beam functions within their respective model year ranges, but the two types are not interchangeable with one another, as the H6024 is a 7-inch round unit and the H6006 is a 5x7-inch rectangular unit with a distinct housing shape.