Polaris 550 IQ Shift Brake Bulb Size

The Polaris 550 IQ Shift brake component requires a 1157 bulb size for proper operation and illumination. Data for the specified bulb covers the range from 2009 to 2013.

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
2009-2013	1157	P21/5W	Check Price

Bulb Specifications

Description	Type	Shop
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. 12V, 21W/5W.	1157	Check Price
ECE standard (Europe & worldwide). Dual-filament signalling bulb with BAY15d bayonet base. 12V, 21W/5W.	P21/5W	Check Price

Other Locations

Additional Notes

The Polaris 550 IQ Shift uses the 1157 bulb for the brake light position across the 2009-2013 model years.
The 1157 is a dual-filament bulb, meaning it serves two lighting functions within a single unit, typically a higher-intensity filament for braking and a lower-intensity filament for running light duty.
The 1157 operates at 12 volts and carries a dual-wattage rating of 21W and 5W, corresponding to its two filaments respectively.
The 1157 uses a BAY15d bayonet base, which features two offset pins that prevent incorrect insertion orientation during installation.
The 1157 is an ANSI-standardized bulb recognized in both the United States and Canada, placing it within a widely distributed specification category.
Because the BAY15d base is specific to dual-filament applications, it is not interchangeable with the BA15s single-pin bayonet base used in single-filament bulbs of otherwise similar physical form.