INFINITI G20 Dome Light Bulb Size

The INFINITI G20 dome light utilizes DE3175 and 194 bulb sizes for interior illumination across various production versions. Available data covers a specific range from 1991 through 2002.

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
1999-2002	DE3175
1996	194
1994-1995	DE3175
1991-1993	194

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Festoon bulb, 31mm length, end-cap contacts. 12V.	DE3175
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W.	194

Other Locations

Additional Notes

The INFINITI G20 dome light uses two distinct bulb types across its production years: the DE3175 festoon bulb and the 194 miniature wedge bulb.
The DE3175 is a festoon-style bulb measuring 31mm in length with end-cap contacts, operating at 12V. It conforms to ANSI standards applicable in the US and Canada.
The 194 is a T10 miniature wedge bulb rated at 12V and 3.78W, also conforming to ANSI standards for the US and Canada. Its wedge base design differs fundamentally from the end-cap contact design of the DE3175, making the two types non-interchangeable.
The INFINITI G20 (1999-2002) uses the DE3175 festoon bulb for the dome light.
The 1996 model year uses the 194 wedge bulb, while the 1995 model year uses the DE3175 festoon bulb, indicating a bulb type change between those two consecutive years.
The 1994-1995 model years use the DE3175 festoon bulb, whereas the 1991-1993 model years use the 194 wedge bulb, reflecting a change in dome light bulb specification between those production periods.
Because the DE3175 relies on end-cap contacts and the 194 uses a wedge base, the socket design in the vehicle determines which type is physically compatible for a given model year.