Chrysler Imperial Headlight Bulb Size

Chrysler Imperial high beam headlight bulbs utilize H4701, H4651, or H4701 size specifications, while low beam applications require H4703, H4652, or H4656 bulb sizes depending on production variables. The replacement chart covers 1950 through 1993 model years with corresponding bulb size data for each vehicle generation.

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 Type	Shop
1990-1993	H4701	Check Price
1981-1983	H4651	Check Price
1958-1975	H5001	Check Price
1957	H6024	Check Price
1950-1955	H6006	Check Price

Low Beam Headlight

Years	Bulb Type	Shop
1990-1993	H4703	Check Price
1983	H4652	Check Price
1981-1982	H4656	Check Price
1958-1975	H5006	Check Price
1957	H6024	Check Price
1950-1955	H6006	Check Price

Bulb Specifications

Description	Type	Shop
ANSI standard (US & Canada). 7-inch round sealed beam unit, variant. Not a replaceable bulb — the entire unit is replaced. 12V.	H4701	Check Price
ANSI standard (US & Canada). 4x6-inch rectangular sealed beam unit. Not a replaceable bulb — the entire unit is replaced. 12V.	H4651	Check Price
ANSI standard (US & Canada). 4-inch square sealed beam unit. Not a replaceable bulb — the entire unit is replaced. 12V.	H5001	Check Price
ANSI standard (US & Canada). 7-inch round sealed beam unit. Not a replaceable bulb — the entire unit is replaced. 12V.	H6024	Check Price
ANSI standard (US & Canada). 5x7-inch rectangular sealed beam unit. Not a replaceable bulb — the entire unit is replaced. 12V.	H6006	Check Price
ANSI standard (US & Canada). 7-inch round sealed beam unit. Not a replaceable bulb — the entire unit is replaced. 12V.	H4703	Check Price
ANSI standard (US & Canada). 4x6-inch rectangular sealed beam unit, variant of H4651. Not a replaceable bulb — the entire unit is replaced. 12V.	H4652	Check Price
ANSI standard (US & Canada). 4x6-inch rectangular sealed beam unit. Not a replaceable bulb — the entire unit is replaced. 12V.	H4656	Check Price
ANSI standard (US & Canada). 5.75-inch round sealed beam unit. Not a replaceable bulb — the entire unit is replaced. 12V.	H5006	Check Price

Other Locations

Additional Notes

The Chrysler Imperial uses sealed beam headlight units across all listed model years, meaning the entire lens-reflector-filament assembly is replaced as one unit rather than swapping an internal bulb.
All sealed beam types specified for the Chrysler Imperial conform to ANSI standards applicable in the United States and Canada, and all operate at 12 volts.
The H5001, a 4-inch square sealed beam unit, is the most frequently recurring high beam specification, covering the 1958-1975 model years. Its paired low beam counterpart is the H5006, a 5.75-inch round sealed beam unit covering the same span.
The 1990-1993 Imperial uses the H4701 for high beam and the H4703 for low beam. Both are 7-inch round sealed beam units, though the H4701 is designated a variant within that form factor, making the two non-interchangeable despite their shared shape and size.
The 1981-1983 Imperial uses 4x6-inch rectangular sealed beam units. The high beam position takes the H4651 across all three years, while the low beam position shifts from the H4656 in 1981-1982 to the H4652 in 1983. The H4652 is itself a variant of the H4651, so all three low beam units in this generation share the same rectangular housing class yet carry distinct designations.
The 1957 Imperial uses the H6024, a standard 7-inch round sealed beam unit, for both high and low beam positions, making it the only model year in the specifications where a single bulb type serves both functions.
The 1950-1955 Imperial uses the H6006, a 5x7-inch rectangular sealed beam unit, for both high and low beam positions across all six listed years.
Four distinct physical form factors appear across the full range of specifications: 4-inch square (H5001), 4x6-inch rectangular (H4651, H4652, H4656), 5x7-inch rectangular (H6006), and 7-inch round (H4701, H4703, H6024), with the 5.75-inch round H5006 representing a fifth distinct format used exclusively in the low beam position during the 1958-1975 years.