Kawasaki ZG1400 Concours License Plate Bulb Size

The Kawasaki ZG1400 Concours uses a 12821 bulb size for the license plate light assembly. The replacement chart covers 2008 through 2020 model years with corresponding bulb specifications.

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
2008-2020	12821

Bulb Specifications

Description	Bulb Size
Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W.	12821

Other Locations

Additional Notes

The Kawasaki ZG1400 Concours uses the 12821 bulb for the license plate position across all listed model years from 2008-2020.
The 12821 is a Philips part number designating a miniature wedge bulb in the T10 form factor, operating at 12 volts and 5 watts.
The T10 designation refers to the bulb's tubular shape, with the number indicating a width of 10 millimeters across the envelope.
The base type is W2.1x9.5d, which is a wedge-style base without a metal contact pin, relying instead on the wedge fit of the glass envelope itself to make electrical contact within the socket.
At 5 watts on a 12-volt circuit, the 12821 draws approximately 0.42 amperes, which is consistent with low-current auxiliary lighting applications such as license plate illumination.
The W2.1x9.5d base is a standardized international specification, meaning bulbs from manufacturers other than Philips sharing this base type and electrical rating are generally interchangeable with the 12821 in this application.