Polaris Storm Brake Bulb Size

The Polaris Storm brake uses a 921 bulb size for the lighting component located at the rear of the vehicle. Data for the specific component covers the range from 1993 to 1998.

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
1993-1998	921

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Wedge bulb (T15). 12V, 16W.	921

Other Locations

Additional Notes

The 921 is the sole brake bulb size listed for the Polaris Storm across the 1993-1998 model years.
The 921 bulb follows the ANSI standard, which is the recognized specification body for lighting components in the United States and Canada.
It is a wedge-base bulb, classified under the T15 designation, meaning it uses a plastic wedge-shaped base rather than a metal screw or bayonet fitting.
The T15 designation refers to the bulb body width, expressed in eighths of an inch, placing it at approximately 15/8 inches across the widest point of the envelope.
The 921 operates at 12 volts and draws 16 watts, which is consistent with standard low-current automotive brake light applications.
Because the 921 uses a wedge base, it is not interchangeable with bayonet-style bulbs such as the 1156 or 1157, even where wattage ratings may be similar.