The Volvo 144 uses H6024 bulb size for both high beam and low beam headlight applications. Replacement chart data spans 1967 to 1974 model years with corresponding bulb size specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Volvo 144 uses the H6024 bulb type for both high beam and low beam headlights across all listed model years, spanning 1967-1974.
The H6024 is an ANSI-standardized sealed beam unit, meaning the lens, reflector, and filament are fused into a single non-serviceable assembly. When the filament fails, the entire unit requires replacement rather than an internal bulb swap.
The H6024 unit is a 7-inch round sealed beam format, a configuration that was widely adopted in North American automotive lighting standards during this era.
The H6024 operates at 12 volts, consistent with the standard 12V electrical systems found in passenger vehicles of this type.
Because the H6024 serves both the high beam and low beam positions on the Volvo 144, the vehicle uses a dual-unit headlight arrangement rather than a single dual-filament lamp per side.
The ANSI standardization of the H6024 means that units produced by different manufacturers are dimensionally and electrically interchangeable, provided they carry the same designation.