Volvo 244 Headlight Bulb Size

Additional Notes

• The 9004 is the only bulb type across these specifications that uses a replaceable halogen bulb rather than a sealed beam unit. It is a dual-filament halogen bulb with a P29t base, rated at 12V with 65W on high beam and 45W on low beam, and it serves both the high beam and low beam positions on the Volvo 244 for 1986-1989.
• All other bulb types listed across these specifications are sealed beam units, meaning the entire lens, reflector, and filament assembly is replaced as one piece rather than swapping an individual bulb.
• The H6024 is a 7-inch round sealed beam unit operating at 12V. It covers both the high beam and low beam positions for 1975-1977, making it the only sealed beam type in these specifications used for both functions within the same model years.
• The H5001 and H5006 are both round sealed beam units operating at 12V, but they differ in size. The H5001 is a 4-inch square unit used for high beam in 1978-1980, while the H5006 is a 5.75-inch round unit used for low beam in the same years.
• The H4651, H4652, and H4656 are all 4x6-inch rectangular sealed beam units operating at 12V. The H4652 is noted as a variant of the H4651, and all three conform to the ANSI standard for the US and Canada market.
• On the Volvo 244, the low beam position for 1981 and 1984 uses the H4656, while 1982-1983 and 1985 use the H4652. Although both are 4x6-inch rectangular sealed beam units, they carry different ANSI designations and are not listed as interchangeable with each other.
• All bulb and sealed beam types across these specifications conform to ANSI standards applicable to the US and Canadian markets and operate on a 12V electrical system.
• The high beam position uses the H4651 for 1981-1985, while the low beam position shifts between H4652 and H4656 across those same years, indicating that the high and low beam assemblies in that period are not served by a single shared unit.