Suzuki Motorcycle GSX-R1000 License Plate Bulb Size

The Suzuki Motorcycle GSX-R1000 uses a license plate light with a specific 12821 bulb size for the rear illumination system. Data for the lighting components covers the range from 2009 through 2016.

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
2011-2016	12821	Check Price
2009	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 the sole bulb type specified for the license plate position across all listed model years of the Suzuki Motorcycle GSX-R1000, covering 2009 and 2011-2016.
The 12821 is a Philips part number designating a miniature wedge bulb in the T10 form factor, operating at 12 volts and rated at 5 watts.
The T10 designation refers to a tubular bulb with a width of approximately 10 millimeters, a size widely used in low-intensity automotive and motorcycle lighting applications such as license plate and courtesy illumination.
The W2.1x9.5d base type is a wedge-style connector, meaning the bulb is held in place by friction from its plastic base rather than by a bayonet or screw mechanism.
At 5 watts and 12 volts, the 12821 draws a relatively low current, consistent with its role as an indicator or auxiliary light rather than a primary illumination source.
The W2.1x9.5d base specification is a precise fitment standard; substituting a bulb with a physically different base type, even at the same voltage and wattage, would result in an incompatible fit for the GSX-R1000 license plate socket.