INFINITI J30 Map Light Bulb Size

The INFINITI J30 map light requires a DE3175 bulb size for the interior lighting system. Data for the specific component covers the range from 1995 to 1997.

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
1995-1997	DE3175 (Front)

Bulb Specifications

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

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Additional Notes

The DE3175 is the sole map light bulb size listed for the INFINITI J30, covering the front position across the 1995-1997 model years.
The DE3175 follows the ANSI standard, meaning it conforms to a defined North American specification recognized in both the United States and Canada.
DE3175 bulbs belong to the festoon family, a cylindrical bulb type that seats between two spring-loaded end caps rather than inserting into a socket with a base pin or bayonet fitting.
The 31mm length in the DE3175 designation refers to the distance between the two end-cap contacts, which must match the span of the fixture's retaining clips for proper fitment.
End-cap contacts on festoon bulbs make electrical contact at both ends of the bulb body, distinguishing them from single-ended bulb types used elsewhere in automotive lighting.
The DE3175 operates at 12 volts, consistent with the standard electrical system voltage found in conventional passenger vehicles.
Because festoon bulbs rely on physical length for fitment, substituting a festoon bulb of a different length, such as a 28mm or 36mm type, would result in an improper fit even if the voltage rating matched.