Fiat 500L License Plate Bulb Size

The Fiat 500L license plate light uses a 12961 bulb size for the rear exterior illumination system. Data for the specified lighting component covers the period from 2014 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
2014-2020	12961

Bulb Specifications

Description	Bulb Size
Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W.	12961

Other Locations

Additional Notes

The Fiat 500L uses the 12961 bulb for its license plate light across all listed model years, spanning 2014-2020.
The 12961 is a Philips part number designating a miniature wedge bulb in the T10 form factor.
T10 refers to the bulb's tubular shape, with the number indicating a width of 10 millimeters.
The base type is W2.1x9.5d, which is the standard wedge base used across a wide range of small automotive lighting applications.
The bulb operates at 12 volts and draws 5 watts, placing it in the low-power range typical of license plate and courtesy lighting.
The W2.1x9.5d wedge base design means the bulb is held in place by friction rather than a bayonet or screw mechanism, requiring no rotation during installation or removal.
The T10 wedge form factor is one of the most widely produced miniature bulb types, and many aftermarket and LED replacements share the same base configuration, though electrical compatibility varies by product.