Polaris 650 Brake Bulb Size

The Polaris 650 brake utilizes a 90 bulb size for the specific lighting components located on the rear of the vehicle. Data for the bulb size covers the range from 1988 to 1992.

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 Type	Shop
1988-1992	90	Check Price

Bulb Specifications

Description	Type	Shop
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 13W.	90	Check Price

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Additional Notes

The Polaris 650 uses the ANSI 90 bulb for its brake light function across the 1988-1992 model years.
The ANSI 90 is a single-filament bulb, meaning it serves one lighting function rather than combining, for example, brake and tail light duties within a single unit.
The 90 bulb operates on a 12-volt electrical system and draws 13 watts, placing it in the lower wattage range typical of small vehicle brake lighting applications.
Its base type is the BA15s bayonet mount, a single-contact bayonet fitting. The "s" designation indicates a single contact point at the base, which is not interchangeable with the BA15d double-contact variant despite sharing the same physical bayonet collar size.
The ANSI 90 specification is recognized across both the United States and Canada, reflecting a shared North American standardization for this bulb type.