Ferrari F40 Map Light Bulb Size

The Ferrari F40 map light requires a 168 bulb size for the interior lighting component. Available data for the specified vehicle covers the period 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	168

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W.	168

Other Locations

Additional Notes

The Ferrari F40 uses the 168 bulb size for the map light across the 1990-1992 model years.
The 168 bulb is an ANSI-standardized type, meaning its specifications are governed by a recognized North American standard applicable in both the US and Canada.
It belongs to the T10 form factor, a miniature wedge-base bulb that connects without a separate socket pin, relying instead on two angled legs that grip the housing directly.
The bulb operates at 12 volts, consistent with the standard electrical system voltage found in passenger vehicles.
Its rated wattage of 4.9W places it in the low-power range, typical of interior courtesy and reading light applications.
The wedge-base design of the 168 means fitment depends on the physical slot width of the housing, and substituting a bulb with a different base type would be incompatible regardless of matching voltage or wattage.