INFINITI QX55 Cargo Box Bulb Size

The INFINITI QX55 cargo box utilizes a specific 12961 bulb size for the interior lighting component. Available data for the specified vehicle covers the period from 2022 through 2023.

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
2022-2023	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

Other Locations

Additional Notes

The 12961 is a Philips part number designating a miniature wedge bulb in the T10 form factor. It uses a W2.1x9.5d base, which is a wedge-style base that requires no locking mechanism, relying instead on tension from the socket to hold the bulb in place.
The 12961 operates at 12 volts and 5 watts, placing it in the low-wattage range typical of interior and auxiliary lighting applications such as cargo illumination.
The INFINITI QX55 uses the 12961 bulb for its cargo box across the 2022-2023 model years.
The T10 designation refers to the bulb's tubular shape with a width of approximately 10 millimeters. This form factor is widely used across many vehicle makes and models, meaning T10-compatible bulbs from various manufacturers are generally interchangeable provided they share the W2.1x9.5d base and match the 12V, 5W electrical rating.