Ferrari 348 TB Dome Light Bulb Size

The Ferrari 348 TB dome light requires a DE3022 bulb size for proper installation within the interior overhead housing. Data for the specific component covers the range from 1990 to 1992.

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
1990-1992	DE3022

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Festoon bulb, 31mm length, end-cap contacts. 12V.	DE3022

Other Locations

Additional Notes

The DE3022 is the dome light bulb size for the Ferrari 348 TB across the 1990-1992 model years.
The DE3022 follows the ANSI standard, which governs bulb specifications in the United States and Canada.
It is a festoon-type bulb, a form factor characterized by a cylindrical body with metal end-cap contacts at both ends rather than a screw or bayonet base.
The bulb body is 31mm in length, which is the critical fitment factor for festoon bulbs, as the end caps must bridge the holder's contact points at a fixed span.
The DE3022 operates at 12 volts, consistent with the standard electrical system voltage found in passenger vehicles of this era.