The Simca 1204 uses H6024 bulb size for both high beam and low beam headlight applications. Replacement chart data covers 1969 to 1971 vehicle production years with corresponding bulb 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, appearing in both the high beam and low beam roles for the Simca 1204 across the 1969-1971 model years.
The H6024 is a 7-inch round sealed beam unit operating at 12 volts, conforming to ANSI standards as defined for the US and Canadian markets.
A sealed beam unit integrates the filament, reflector, and lens into a single non-serviceable assembly, meaning the entire unit requires replacement rather than an internal bulb swap.
The H6024 format was a standardized sealed beam type, which means units from different manufacturers sharing the same designation are generally interchangeable at the physical and electrical level.
Because the high beam and low beam positions share the same H6024 designation, the Simca 1204 uses a dual-filament or paired sealed beam arrangement rather than separate single-filament units for each function.