The Mercedes-Benz 220 uses a 3893 bulb size for both front and rear side marker applications. The replacement chart covers vehicle production spanning 1968 to 1973.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Mercedes-Benz 220 uses the 3893 bulb for both front and rear side marker positions across the 1968-1973 model years.
The 3893 is an ANSI-standardized bulb, meaning it conforms to a defined set of electrical and physical specifications recognized across the United States and Canada.
This bulb operates on a 12-volt electrical system, which is standard for passenger vehicles of this era.
The 3893 is a dual-filament bulb, meaning it contains two separate filaments within a single envelope, allowing it to serve more than one lighting function from a single unit.
It uses a BAY15d bayonet base, a two-pin offset base type where the two pins are positioned at different heights to ensure the bulb can only be inserted in one orientation, preventing incorrect filament alignment.
The 3893 is classified as a specialty application bulb, indicating it is not among the most widely distributed automotive bulb types and may have more limited retail availability than common replacements.
Because the same bulb size is specified for both the front and rear side marker positions on the Mercedes-Benz 220, a single bulb type covers all four side marker sockets on the vehicle.
The BAY15d base type is distinct from the more common BAY15s single-filament bayonet base, and the two are not interchangeable despite sharing a similar physical form factor.