Polaris 800 SwitchBack Brake Bulb Size

The Polaris 800 SwitchBack brake utilizes a 1157 bulb size for the lighting system on the vehicle. Available information covers a span of time starting in 2004 and ending in 2011.

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
2009-2011	1157	P21/5W	Check Price
2004-2005	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 the sole brake bulb type listed across all model years of the Polaris 800 SwitchBack covered by these specifications, spanning 2004-2005 and 2009-2011.
The 1157 is a dual-filament bulb, meaning it houses two separate filaments within a single envelope to serve two distinct lighting functions, typically stop and tail lighting.
The bulb operates at 12 volts and carries a dual-wattage rating of 21W and 5W, corresponding to its high-intensity and low-intensity filaments respectively.
The 1157 uses a BAY15d bayonet base, a two-pin offset base design that physically prevents incorrect insertion by positioning the two pins at different heights along the base.
The 1157 designation follows ANSI standards recognized in both the United States and Canada, establishing consistent electrical and physical specifications across manufacturers.
The BAY15d base is not interchangeable with single-filament bayonet bases such as the BA15s, as the offset pin configuration is specific to dual-filament applications.