Kawasaki KLX250 License Plate Bulb Size

The Kawasaki KLX250 uses a 12821 bulb size for the license plate light, with this specific bulb designation applying to the motorcycle model across its production range. The replacement chart covers 2006 to 2007 model years and documents the bulb size specifications for that period.

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 Type	Shop
2006-2007	12821	Check Price

Bulb Specifications

Description	Type	Shop
Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W.	12821	Check Price

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Additional Notes

The 12821 is a Philips part number designating a miniature wedge bulb in the T10 form factor. It uses a W2.1x9.5d base, which is a wedge-style base that requires no separate socket pins, relying instead on the tension of the base contacts to hold the bulb in place.
The 12821 bulb operates at 12 volts and 5 watts, a rating typical of low-current indicator and license plate lighting applications in 12-volt automotive electrical systems.
The Kawasaki KLX250 uses the 12821 bulb for the license plate position across the 2006-2007 model years covered in these specifications.
The T10 designation refers to the bulb's tubular shape with a nominal width of 10 millimeters. This form factor is widely used across many vehicle makes and models, meaning functionally equivalent T10 wedge bulbs from other manufacturers may share the same physical fitment as the 12821.