Polaris 700 Classic Brake Bulb Size

The Polaris 700 Classic brake uses bulb size 2458, 3157, or 921 depending on the specific version of the snowmobile. Data for the bulb sizes covers the range from 2001 to 2006.

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
2006	3157
2004	3157
2001-2003	921

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Dual-filament wedge bulb (T25). 12V, 27W/7W.	3157
ANSI standard (US & Canada). Wedge bulb (T15). 12V, 16W.	921

Other Locations

Additional Notes

The 3157 is a dual-filament wedge bulb of the T25 type, rated at 12 volts with a power draw of 27 watts on the high filament and 7 watts on the low filament. The dual-filament design allows a single bulb to serve both brake and running light functions simultaneously.
The 921 is a single-filament wedge bulb of the T15 type, rated at 12 volts and 16 watts. As a single-filament bulb, it operates at one fixed output level rather than switching between two brightness states.
Both the 3157 and 921 conform to ANSI standards recognized in the United States and Canada, placing them within a standardized classification system that governs electrical and photometric performance.
The Polaris 700 Classic uses the 3157 bulb for the 2004 and 2006 model years, and the 921 bulb for the 2001-2003 model years, indicating a change in brake bulb specification between the 2003 and 2004 model years.
The T25 and T15 designations refer to the tubular wedge form factor of each bulb, with T25 being physically larger than T15. These two types are not interchangeable due to differences in size, base configuration, and filament count.