Polaris Turbo SwitchBack Brake Bulb Size

The Polaris Turbo SwitchBack brake uses bulb size 1157 for the lighting components located at the rear of the vehicle. Data for the specific bulb requirements covers the range from 2008 to 2009.

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
2008-2009	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 1157 is a dual-filament bulb, meaning it contains two separate filaments within a single glass envelope. One filament operates at 21W for braking functions, and the other operates at 5W for running light functions. This dual-filament design allows a single bulb to serve two distinct lighting roles.
The 1157 uses a BAY15d bayonet base, which features two offset pins positioned at different heights on the base. This asymmetric pin arrangement prevents the bulb from being inserted in the wrong orientation, ensuring each filament connects to its correct circuit.
The 1157 is rated at 12V, which is standard for most powersports electrical systems. Operating the bulb outside its rated voltage can affect both output and service life.
The 1157 is an ANSI-standardized bulb recognized across the United States and Canada, meaning it follows a defined specification for physical and electrical characteristics. This standardization generally allows for cross-brand substitution as long as the replacement meets the same ANSI designation.
The Polaris Turbo SwitchBack uses the 1157 bulb size for its brake light across the 2008-2009 model years.