INFINITI QX80 Stepwell Bulb Size

The INFINITI QX80 stepwell light requires a 12961 bulb size for proper installation and function within the vehicle interior. Data for the specified component covers a range from 2014 through 2024.

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 Type	Shop
2021-2024	12961	Check Price
2014-2019	12961	Check Price

Bulb Specifications

Description	Type	Shop
Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W.	12961	Check Price

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Additional Notes

The INFINITI QX80 uses the 12961 bulb for its stepwell position across all listed model years from 2014-2024.
The 12961 is a Philips part number designating a miniature wedge bulb in the T10 form factor, operating at 12 volts and 5 watts.
The T10 designation refers to a tubular bulb with a width of approximately 10mm, commonly found in low-current interior and courtesy lighting applications.
The 12961 uses a W2.1x9.5d wedge base, which is a pushfit base type that requires no socket rotation for installation or removal.
At 5 watts, the 12961 draws minimal current, consistent with its role in stepwell illumination where the bulb operates intermittently during door-open events.
The W2.1x9.5d base specification is a standardized IEC designation, meaning aftermarket T10 wedge bulbs sharing this base type are physically interchangeable with the 12961 in the QX80 stepwell socket.