Nissan Xterra Map Light Bulb Size

The Nissan Xterra map light utilizes bulb sizes DE3175, 168, and 578 for the interior lighting components. Available data for the specified vehicle covers the range from 2000 through 2015.

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
2005-2015	DE3175
2002-2004	168
2000-2001	578

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, 4.9W.	168
ANSI standard (US & Canada). Festoon bulb, 41mm length, end-cap contacts. 12V, 12W.	578

Other Locations

Additional Notes

The Nissan Xterra map light bulb specification covers model years 2000 through 2015, with three distinct bulb sizes used across that span.
The DE3175 is the most frequently specified map light bulb in these specifications, covering the Nissan Xterra across 2005-2015.
The DE3175 is a festoon-type bulb with a 31mm length and end-cap contacts, operating at 12 volts. It conforms to ANSI standards applicable in the US and Canada.
Festoon bulbs make contact at both ends of the bulb rather than through a base, which is a defining characteristic of the DE3175 and the 578 types listed in these specifications.
The 578 bulb was specified for the 2000-2001 Xterra. It is also a festoon type but measures 41mm in length and is rated at 12 volts and 12 watts.
Because the DE3175 and the 578 are both festoon bulbs with end-cap contacts but differ in length (31mm versus 41mm), they are not interchangeable with each other.
The 168 bulb was specified for the 2002-2004 Xterra. Unlike the festoon types, it is a miniature wedge bulb of the T10 form factor, rated at 12 volts and 4.9 watts.
The T10 wedge form factor of the 168 bulb uses a wedge-shaped base that seats directly into a socket, making it physically incompatible with the end-cap festoon sockets used in other Xterra model years.
A bulb change occurs between the 2004 and 2005 Xterra, shifting from the wedge-type 168 to the festoon-type DE3175, which reflects a socket design difference between those generations.
All three bulb sizes listed in these specifications conform to ANSI standards for the US and Canadian markets.