Nissan 370Z Back Up Light Bulb Size

The Nissan 370Z back up light utilizes a 921 bulb size for illumination purposes during reverse maneuvers. Provided information covers a specific time span ranging from 2009 through 2020.

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
2009-2020	921

Bulb Specifications

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

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Additional Notes

The Nissan 370Z uses the 921 bulb size for the back up light across all listed model years, spanning 2009-2020.
The 921 is a wedge-type bulb, classified under the T15 designation, which refers to its tubular shape with a width of 15/8 of an inch.
Wedge bulbs use a wedge-shaped plastic base that friction-fits directly into the socket, requiring no separate metal base or locking pins.
The 921 operates at 12 volts and draws 16 watts, placing it in the mid-range output category for incandescent automotive bulbs.
The 921 conforms to ANSI standards as recognized in both the United States and Canada, indicating a standardized specification for physical and electrical properties.
The T15 wedge format is shared by several bulb variants, so electrical ratings such as wattage must be confirmed before substituting an alternative bulb, as physically similar types may differ in power draw.