Mazda Miata Dome Light Bulb Size

The Mazda Miata dome light utilizes a DE3175 bulb size for interior illumination within the cabin area. Data for the specific component covers a range from 1995 through 2005.

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
1999-2005	DE3175
1995-1997	DE3175

Bulb Specifications

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

Other Locations

Additional Notes

The Mazda Miata uses the DE3175 bulb for the dome light across all model years listed in the specifications, spanning 1995-2005.
The DE3175 is a festoon-type bulb, meaning it is cylindrical in shape and makes electrical contact through metal caps at each end rather than through a base socket.
Festoon bulbs are held in place by spring-loaded clips that press against the end caps, a mounting method common in interior dome light housings.
The DE3175 has a nominal length of 31mm, which is the standard fitment length the housing is designed to accept.
The bulb operates at 12 volts, consistent with the standard electrical system voltage found in passenger vehicles.
The DE3175 designation follows ANSI standards applicable in the United States and Canada, indicating the bulb conforms to a defined set of dimensional and electrical specifications within those markets.
Because the DE3175 is an ANSI-standardized festoon bulb, aftermarket and LED replacement bulbs labeled DE3175 or 31mm festoon are generally produced to the same end-cap contact specification.
The single bulb size across all listed years of the Mazda Miata (1995-2005) indicates the dome light housing design remained consistent throughout that production period.