Nissan TITAN XD Map Light Bulb Size

The Nissan TITAN XD map light requires a DE3175 bulb size for proper installation and function within the interior lighting housing. Data for the specified component covers the range from 2016 to 2019.

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
2016-2019	DE3175

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 Nissan TITAN XD uses the DE3175 bulb size for the map light across the 2016-2019 model years.
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 and map light housings.
The DE3175 has a nominal length of 31mm, which is the critical fitment factor for festoon bulbs, as the spring clips must compress correctly against the end caps to maintain a stable electrical connection.
The bulb operates at 12 volts, consistent with the standard electrical system voltage of conventional passenger vehicles and light trucks.
The DE3175 designation follows the ANSI standardization system used in the United States and Canada, meaning bulbs from different manufacturers carrying this designation share the same physical and electrical specifications.
Because the DE3175 is an ANSI-standardized part, aftermarket and OEM replacements labeled DE3175 are generally interchangeable with one another, provided the 31mm festoon length is maintained.
Festoon bulbs of similar length but different designations, such as the DE3021 or DE3022, are not confirmed fitments for this application and should not be substituted without verification of the housing clip span.