Nissan 300ZX Dome Light Bulb Size

The Nissan 300ZX dome light utilizes bulb sizes 158 and DE3175 across various production versions. Available information covers a span of time starting in 1984 and ending in 1996.

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
1995-1996	158
1992-1994	DE3175
1991	158
1984-1990	DE3175

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3W.	158
ANSI standard (US & Canada). Festoon bulb, 31mm length, end-cap contacts. 12V.	DE3175

Other Locations

Additional Notes

The Nissan 300ZX dome light specifications cover model years 1984-1996 and reference two distinct bulb types: the 158 and the DE3175.
The DE3175 is the more frequently specified bulb across this range, appearing in ten of the thirteen model years listed.
The DE3175 is a festoon-style bulb measuring 31mm in length, making contact through end-caps at each end rather than through a wedge base. It operates at 12 volts.
The 158 is a T10 miniature wedge bulb rated at 12 volts and 3 watts. Its wedge base design differs fundamentally from the end-cap contact system of the DE3175.
Both the 158 and DE3175 carry ANSI standard designations recognized in the United States and Canada.
The two bulb types use physically incompatible mounting systems. The wedge base of the 158 and the end-cap contacts of the DE3175 are not interchangeable without a socket adapter or housing modification.
The Nissan 300ZX shifts from the DE3175 to the 158 in the 1991 model year, then returns to the DE3175 for 1992-1993, before reverting again to the 158 for 1995-1996.
Because the bulb type is not consistent across consecutive model years, the specific model year must be confirmed before selecting a replacement dome light bulb for the 300ZX.