Maserati Spyder Dome Light Bulb Size

The Maserati Spyder dome light requires a 194 bulb size for proper installation within the interior overhead housing. Available data for the specified component covers the period from 1986 through 1991.

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
1989-1991	194
1986-1987	194

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W.	194

Other Locations

Additional Notes

The Maserati Spyder uses the 194 bulb for the dome light across all listed model years, spanning 1986-1991.
The 194 is an ANSI-standardized bulb type, meaning its specifications are governed by a formal industry standard recognized in both the United States and Canada.
This bulb follows the T10 form factor, which refers to a miniature wedge-base design. The wedge base eliminates the need for a separate metal contact, as the glass envelope itself forms the electrical connection when inserted into the socket.
The 194 operates at 12 volts, consistent with the standard electrical system voltage found in conventional passenger vehicles.
At 3.78 watts, the 194 is a low-wattage bulb, which is typical for interior courtesy lighting applications such as dome lights.
The T10 wedge base is a widely produced form factor, and the 194 designation is interchangeable with several equivalent part numbers from different manufacturers, provided the voltage and wattage ratings match.