Polaris XLT SP Brake Bulb Size

The Polaris XLT SP brake light utilizes bulb size 921 and bulb size 90 for the lighting system. Data for the specific components covers the range from 1992 through 1999.

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
1998-1999	921

Bulb Specifications

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

Other Locations

Additional Notes

The 921 bulb is the brake bulb size for the Polaris XLT SP across the 1998-1999 model years.
The 921 is classified under the ANSI standard, which is the governing specification body for bulb ratings in the United States and Canada.
The 921 uses a wedge-style base, designated T15, which refers to a tubular bulb body approximately 15 eighths of an inch wide. Wedge bases are inserted directly into a socket without a separate metal base, relying on the bulb's glass envelope and wire leads to hold it in place.
The 921 operates at 12 volts and draws 16 watts, figures consistent with standard automotive low-current brake lighting applications.