The Volvo 1800 uses H6024 bulb size for both high beam and low beam headlight applications. The replacement chart covers 1969 to 1973 production 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 H6024 is the sole bulb type listed across all headlight positions in these specifications, covering both high beam and low beam applications for the Volvo 1800 from 1969-1973.
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 is replaced rather than an internal bulb.
The H6024 follows a 7-inch round form factor, which was a regulated standard in North American automotive lighting during this era, governed by ANSI specifications applicable in both the United States and Canada.
Operating at 12 volts, the H6024 is compatible with the standard 12V electrical systems found in passenger vehicles of this period.
The Volvo 1800 uses the same H6024 unit for both high beam and low beam functions, indicating a dual-filament sealed beam design rather than separate single-filament units for each function.
Because the H6024 is an ANSI-standardized unit, it is interchangeable across any vehicle specifying that same designation, provided the mounting hardware and wiring connector are compatible.