Maserati Biturbo Dome Light Bulb Size

Additional Notes

• The Maserati Biturbo uses the 194 bulb for its dome light across the 1983-1987 model years.
• The 194 is classified under the ANSI standard, meaning it conforms to a recognized North American specification used in the United States and Canada.
• It is a miniature wedge-type bulb, designated T10, which refers to its tubular shape with a wedge base that connects without a separate metal cap or pins.
• The T10 wedge base design allows the bulb to be seated and removed by pushing and rotating, a common fitment method in compact interior lighting sockets.
• The 194 operates at 12 volts, consistent with the standard electrical system voltage found in passenger vehicles of that era.
• Its rated wattage is 3.78W, placing it in the low-power range typical of interior courtesy lighting rather than exterior or signal applications.
• Because the same bulb size is specified across all five model years of the Biturbo covered in these data, the dome light socket remained unchanged throughout that production span.
• The T10 wedge format is widely used across many vehicle makes, which means the 194 bulb is a broadly available part rather than a proprietary or hard-to-source component.