Nissan Pathfinder Map Light Bulb Size

The Nissan Pathfinder map light utilizes 12961 and DE3175 bulb sizes for the interior illumination components. Available data covers the specific range from 2005 through 2019 for the specified vehicle.

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
2019	12961 (Side)
2017-2018	12961
2013	DE3175 (Front)
2005-2012	DE3175

Bulb Specifications

Description	Bulb Size
Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W.	12961
ANSI standard (US & Canada). Festoon bulb, 31mm length, end-cap contacts. 12V.	DE3175

Other Locations

Additional Notes

The Nissan Pathfinder map light specifications cover two distinct bulb types across the listed model years: the 12961 and the DE3175.
The 12961 is a Philips part number designating a T10 miniature wedge bulb with a W2.1x9.5d base, rated at 12V and 5W.
The DE3175 follows the ANSI standard used in the US and Canada. It is a festoon-style bulb measuring 31mm in length with end-cap contacts, rated at 12V.
Festoon bulbs make contact at both ends of the housing rather than through a side-pin or wedge base, which makes them physically incompatible with wedge-style sockets.
The Nissan Pathfinder (2017-2019) uses the 12961 wedge bulb for the map light, with the 2019 entry noting a side-position fitment.
The Pathfinder (2005-2013) uses the DE3175 festoon bulb, with the 2013 entry specifying a front-position fitment.
Because the 12961 and DE3175 use fundamentally different base types, a wedge socket and a festoon socket are not interchangeable, and the two bulbs cannot substitute for one another.
The W2.1x9.5d base designation on the 12961 describes a wedge-type connection where the bulb is held in place by tension within the socket rather than by a locking pin or cap.
The 31mm length designation in the DE3175 is a critical fitment factor, as festoon bulbs are sized by their overall length and must match the span of the fixture's contact points.
A change in bulb type occurs between the 2013 and 2017 model years of the Pathfinder, with the DE3175 festoon used through 2013 and the 12961 wedge type introduced by 2017.