Polaris 600 Classic Brake Bulb Size

The Polaris 600 Classic brake light utilizes bulb sizes 2458, 3157, and 921 depending on the specific version of the machine. Data for the lighting components covers the period from 2001 through 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	US Type	EU Type	Shop
2004-2006	3157	P27/7W	Check Price
2001-2003	921	W16W	Check Price

Bulb Specifications

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

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Additional Notes

The Polaris 600 Classic uses two distinct brake bulb types across its 2001-2006 model years: the 3157 and the 921, both of which conform to ANSI standards recognized in the United States and Canada.
The 3157 is a dual-filament wedge bulb in the T25 form factor, rated at 12V with a wattage split of 27W for the high-intensity filament and 7W for the low-intensity filament, making it suitable for combined stop and tail light functions within a single housing.
The 921 is a single-filament wedge bulb in the T15 form factor, rated at 12V and 16W, serving a dedicated brake light function without a secondary filament.
The Polaris 600 Classic (2004-2006) uses the 3157 bulb for the brake light position, while the 2001-2003 model years use the 921 bulb in the same position.
The T25 and T15 designations refer to the outer envelope size of each bulb, with T25 being physically larger than T15. These two bulbs are not interchangeable due to differences in physical size, filament count, and wattage.
The shift from the 921 to the 3157 between the 2003 and 2004 model years represents a change in both the bulb's form factor and its electrical characteristics, as the 3157 draws significantly more power on its primary filament.