Suzuki Motorcycle LT300E Tail Light Bulb Size

The Suzuki Motorcycle LT300E tail light requires a bulb with the unique size 12821. Data for the specified component covers the range from 1987 through 1989.

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
1987-1989	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

Other Locations

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 socket pins, relying instead on tension from the housing to maintain contact.
The bulb operates at 12 volts and 5 watts, placing it in the low-wattage range typical of tail light and marker light applications where continuous illumination is required without significant heat output.
The Suzuki Motorcycle LT300E uses the 12821 bulb for the tail light position across the 1987-1989 model years.
The W2.1x9.5d base designation refers to a standardized wedge base where 2.1 millimeters describes the wire contact width and 9.5 millimeters describes the base length. Substituting a bulb with a different base code risks a loose or incompatible fit within the tail light housing.