The Volkswagen Corrado uses 3893 bulb size for both front and rear side marker positions. The replacement chart covers 1990 to 1994 model 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 Volkswagen Corrado uses the 3893 bulb for both front and rear side marker positions across all model years from 1990-1994.
The 3893 is an ANSI-standardized bulb, meaning its specifications are governed by a recognized North American industry standard applicable in both the United States and Canada.
The 3893 bulb operates on a 12-volt electrical system, which is consistent with standard automotive low-voltage architecture.
A dual-filament design means the 3893 bulb contains two separate filaments within a single envelope, allowing it to serve more than one lighting function from a single socket.
The BAY15d bayonet base is a two-pin offset bayonet mount, where the two pins are positioned at different heights along the base. This offset arrangement prevents incorrect installation by ensuring the bulb can only be seated in one orientation.
The 3893 is classified as a specialty application bulb, distinguishing it from more common general-service automotive bulb types.
Because the front and rear side marker positions on the Volkswagen Corrado (1990-1994) share the same bulb size, a single bulb type services all four side marker sockets on the vehicle.
The BAY15d base type is not universally interchangeable with other bayonet bases such as the BA15s or BA15d, as differences in pin count and pin offset make those bases physically incompatible with a BAY15d socket.