INFINITI J30 Back Up Light Bulb Size

The INFINITI J30 back up light utilizes a 921 bulb size for illumination purposes within the rear lighting assembly. Data for the specified component covers the range from 1993 to 1997.

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
1993-1997	921

Bulb Specifications

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

Other Locations

Additional Notes

The INFINITI J30 uses the 921 bulb size for the back up light across all listed model years, spanning 1993-1997.
The 921 is an ANSI-standardized bulb, meaning it conforms to a defined set of electrical and physical specifications recognized across the United States and Canada.
The 921 bulb uses a wedge-style base, designated T15, which refers to a tubular glass envelope roughly 15/8 of an inch wide that is held in its socket by the tension of the base contacts rather than a bayonet or screw mechanism.
The bulb operates at 12 volts, consistent with the standard electrical system voltage found in passenger vehicles.
The 921 carries a 16-watt power rating, which reflects the amount of electrical energy the filament consumes during operation.
Because the same bulb number applies to all five model years of the J30, a single replacement unit is interchangeable across the entire production run of the vehicle.