INFINITI Q60 Back Up Light Bulb Size

The INFINITI Q60 back up light requires a bulb size of 921 for the specific lighting components located at the rear of the vehicle. Data for the specified bulb requirements covers the range from 2014 to 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
2014-2015	921

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Wedge bulb (T15). 12V, 16W.	921

Other Locations

Additional Notes

The 921 bulb is the specified size for the INFINITI Q60 backup light across the 2014-2015 model years.
The 921 is an ANSI-standardized bulb type, meaning its electrical and physical characteristics follow a defined specification recognized in the United States and Canada.
The 921 uses a wedge-style base, classified under the T15 form factor. A wedge base relies on the tension of its contacts rather than a bayonet or screw mechanism to secure the bulb in its socket.
The bulb operates at 12 volts, which is consistent with standard automotive electrical systems.
The 921 carries a 16-watt power rating, reflecting the amount of electrical power the filament consumes during operation.
The T15 designation refers to the bulb's tubular shape, with the number indicating a width of 15 eighths of an inch. This physical profile determines socket compatibility and is not interchangeable with other T-series wedge bulbs of differing widths.