The 3893 bulb is the sole bulb type specified for the Mercedes-Benz 200 across all listed side marker positions and model years.
The 3893 is classified as an ANSI standard bulb recognized in both the United States and Canada, meaning it conforms to a defined North American specification for electrical and physical characteristics.
This bulb carries a dual-filament design, which means it contains two separate filaments within a single envelope, each capable of operating independently at different brightness levels.
The 3893 uses a BAY15d bayonet base, a two-pin offset bayonet mount where the two pins are positioned at different heights to prevent incorrect insertion orientation.
The bulb operates at 12 volts, consistent with the standard electrical system voltage found in passenger vehicles of this era.
The 3893 is designated as a specialty application bulb, indicating it is intended for specific fitments rather than general-purpose use.
For the Mercedes-Benz 200, the 3893 bulb applies to both the front and rear side marker positions across the 1966-1968 model years.
Because the same bulb size is specified for both front and rear side marker positions, the 3893 is physically interchangeable between those two locations on this vehicle.
The BAY15d base type is distinct from the single-pin BA15s base, and substituting a single-filament BA15s bulb in place of the dual-filament BAY15d would result in an incompatible fitment.