Volkswagen Cabriolet front and rear side marker bulbs utilize a 3893 size across both positions. The replacement chart covers vehicle production spanning 1985 to 1993.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Volkswagen Cabriolet uses the 3893 bulb for both front and rear side marker positions across the 1985-1993 model years.
The 3893 is an ANSI-standardized bulb type, meaning its specifications conform to a defined standard recognized in both the United States and Canada.
This bulb operates on a 12-volt electrical system, which is consistent with standard automotive low-voltage architecture.
The 3893 features a dual-filament design, meaning it contains two separate filaments within a single bulb envelope, each capable of producing a different light output level.
The base type on the 3893 is a BAY15d bayonet mount, which is an offset twin-pin bayonet configuration. The offset pin placement is a deliberate design feature that prevents incorrect insertion orientation.
The BAY15d base is specifically associated with dual-filament bulbs, and the pin offset ensures the two filaments are connected to the correct circuits upon installation.
The 3893 is classified as a specialty application bulb, distinguishing it from more broadly common automotive bulb types in terms of its intended use context.
Because the same bulb size applies to all nine model years across both the front and rear side marker positions on the Volkswagen Cabriolet, the 3893 represents a single consistent fitment requirement for the entire production run covered by these specifications.