Polaris 550 IQ Shift Tail Light Bulb Size

The Polaris 550 IQ Shift tail light utilizes a single 1157 bulb size for illumination across all recorded vehicle applications. Data for the specified component covers a range from 2009 through 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	Bulb Size
2009-2013	1157

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. 12V, 21W/5W.	1157

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Additional Notes

The 1157 is the tail light bulb size specified for the Polaris 550 IQ Shift across the 2009-2013 model years.
The 1157 bulb follows the ANSI standard recognized in the United States and Canada, meaning it conforms to a defined set of dimensional and electrical specifications shared across compliant manufacturers.
This bulb uses a dual-filament design, which allows a single unit to serve two distinct lighting functions, typically a lower-intensity running or parking light and a higher-intensity brake or stop light.
The 1157 operates on a 12-volt electrical system, consistent with the standard automotive and powersports vehicle architecture.
The two filaments are rated at 21 watts and 5 watts respectively, with the higher wattage filament producing the brighter output associated with active braking signals.
The BAY15d bayonet base features two offset pins positioned at different heights, a design that prevents incorrect insertion and ensures the higher-wattage filament is always oriented to the correct circuit contact.
The BAY15d base type is a widely used standard, meaning 1157 bulbs from different manufacturers are generally interchangeable as long as the voltage and wattage ratings match the original specification.