Suzuki Motorcycle LT230 Tail Light Bulb Size

Suzuki Motorcycle LT230 tail light utilizes a 12821 bulb size for replacement applications. The chart covers vehicle production spanning 1985 to 1993 with corresponding bulb size specifications.

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 Size
1985-1993	12821

Bulb Specifications

Description	Bulb Size
Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W.	12821

Additional Notes

The Suzuki Motorcycle LT230 uses the 12821 bulb for its tail light across all listed model years, spanning 1985-1993.
The 12821 is a Philips part number designating a miniature wedge bulb in the T10 form factor, which refers to the tubular glass envelope width expressed in eighths of an inch.
The bulb uses a W2.1x9.5d base, a wedge-style base that makes contact through pressure rather than a bayonet or screw mechanism, meaning it is inserted directly into a compatible socket without rotation.
The 12821 operates at 12 volts and 5 watts, placing it in the low-wattage range typical of indicator and tail light applications in small-displacement vehicles.
The T10 wedge format is a widely produced bulb type, and the 12821 designation identifies a specific Philips variant within that category rather than a universal cross-reference number.
Because the W2.1x9.5d base relies on a friction fit, socket condition directly affects bulb retention and electrical contact reliability.