Ferrari Mondial t Back Up Light Bulb Size

The Ferrari Mondial t back up light requires a unique 1156 bulb size for specific applications within the lighting assembly. Data for the bulb specifications covers the range from 1991 to 1993.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Bulb Size by Year Range

Years	Bulb Size
1991-1993	1156

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W.	1156

Other Locations

Additional Notes

The 1156 is the sole bulb type listed for the Ferrari Mondial t backup light across the 1991-1993 model years.
The 1156 is an ANSI-standardized bulb used in the United States and Canada, operating at 12 volts with a 21-watt output.
As a single-filament bulb, the 1156 is dedicated to one lighting function, which in this application is the backup light.
The 1156 uses a BA15s bayonet base, a single-contact mount where the bulb locks into the socket with a twist, as opposed to a screw or multi-contact base.
The BA15s base designation indicates a single center contact at the base, distinguishing it from the dual-contact BA15d variant, which is not interchangeable with the 1156.