Suzuki Motorcycle M90 Boulevard License Plate Bulb Size

The Suzuki Motorcycle M90 Boulevard uses a license plate light with a specific 12821 bulb size for the rear illumination system. Data for the lighting components covers the period from 2013 through 2019.

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
2013-2019	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 Suzuki Motorcycle M90 Boulevard uses the 12821 bulb for its license plate position across the 2013-2019 model years.
The 12821 is a Philips part number designating a miniature wedge bulb in the T10 form factor, which refers to the tubular glass envelope with a nominal width of 10 millimeters.
This bulb operates at 12 volts and draws 5 watts, placing it in the low-wattage range typical of auxiliary lighting positions such as license plate illumination.
The base type is W2.1x9.5d, a wedge-style base that relies on tension from the socket contacts rather than a bayonet or screw mechanism to maintain its connection.
The T10 wedge format is widely used across the automotive and powersports industries, meaning physically compatible substitutes from other manufacturers may exist, though electrical ratings should match the 12V, 5W specification to avoid socket or circuit issues.
Because the 12821 is a Philips-specific part number, equivalent bulbs from other brands are typically cross-referenced by their base type and wattage rather than by this number directly.