Suzuki Motorcycle LT250R QuadRacer Tail Light Bulb Size

The Suzuki Motorcycle LT250R QuadRacer tail light utilizes a single 12821 bulb size for the lighting system. Available information covers the specific range from 1985 through 1992 for the specified vehicle.

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
1985-1992	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 Suzuki Motorcycle LT250R QuadRacer uses the 12821 bulb for its tail light across all listed model years, spanning 1985-1992.
The 12821 is a Philips part number designating a miniature wedge bulb in the T10 form factor, which refers to a tubular bulb roughly 10mm wide at its widest point.
The bulb operates on a 12-volt electrical system and draws 5 watts, placing it in the low-power range typical of tail light and parking light applications.
The W2.1x9.5d base is a wedge-type connector, meaning the bulb is held in place by tension from the socket rather than by a bayonet or screw mechanism.
The W2.1x9.5d designation specifies the exact base geometry, where 2.1 refers to the wire contact width in millimeters and 9.5 refers to the base length in millimeters, making socket compatibility dependent on both values.
Because the LT250R QuadRacer uses the same 12821 specification across all eight listed model years, a single bulb type serves the entire 1985-1992 production run without variation.
The T10 wedge format is widely used across automotive and powersports applications, though fitment in a specific socket depends on the W2.1x9.5d base matching the socket design rather than the T10 designation alone.