INFINITI M37 License Plate Bulb Size

The INFINITI M37 license plate light requires a 168 bulb size for the rear exterior lighting system. Data for the specified component covers the period from 2011 through 2013.

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
2011-2013	168

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W.	168

Other Locations

Additional Notes

The T10 miniature wedge bulb, designated ANSI 168, is the license plate bulb size for the Infiniti M37 across the 2011-2013 model years.
The 168 bulb operates at 12 volts with a power draw of 4.9 watts, placing it in the low-wattage range typical of license plate and courtesy lighting applications.
The T10 designation refers to a tubular bulb body with a wedge-style base, which relies on tension from the socket contacts rather than a bayonet or screw mechanism to maintain its connection.
The 168 rating is an ANSI standard recognized in both the United States and Canada, indicating a standardized specification for the bulb's electrical and physical characteristics.
The wedge base format of the T10 is shared by several other ANSI-rated bulbs, meaning physical fitment in the socket does not guarantee electrical equivalence with other T10-based bulbs that carry different wattage or voltage ratings.