Nissan Pathfinder Dome Light Bulb Size

Additional Notes

• The 12961 is a T10 miniature wedge bulb operating at 12 volts and 5 watts, identified by a W2.1x9.5d base. It is a Philips part number rather than a universal industry standard designation.
• The DE3175 is an ANSI-standardized festoon bulb recognized across the US and Canadian markets. It measures 31mm in length and makes electrical contact through end-cap terminals at each end of the bulb body, operating at 12 volts.
• The Nissan Pathfinder uses the 12961 wedge bulb for dome lighting across the 2013-2024 model years, with the exception of 2020-2021, and uses the DE3175 festoon bulb from 1987 through 2012.
• The wedge base of the 12961 and the end-cap festoon base of the DE3175 are physically incompatible socket types. These two bulbs are not interchangeable despite both operating at 12 volts.
• The 1999 Pathfinder dome light specification applies specifically to the Late Model variant, indicating that not all 1999 units share the same fitment.
• The 1996 Pathfinder dome light specification applies only to units produced from October 1995 onward, reflecting a mid-cycle production change that affects bulb fitment within that model year.
• The 2019 Pathfinder dome light specification designates the 12961 bulb for the rear position specifically, distinguishing it from a general or front dome application.