Polaris Trail Deluxe Brake Bulb Size

The Polaris Trail Deluxe brake light utilizes 921 and 90 bulb sizes for various lighting components. Data for the specified vehicle covers the period from 1988 through 1995.

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
1988-1992	90

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 13W.	90

Other Locations

Additional Notes

The Polaris Trail Deluxe uses the 90 bulb for the brake light across the 1988-1992 model years.
The 90 bulb follows the ANSI standard, which is the recognized specification system for bulbs in the United States and Canada.
This bulb operates on a 12-volt electrical system and draws 13 watts, which is consistent with standard low-power automotive lighting circuits.
The 90 bulb is a single-filament type, meaning it serves one lighting function only, in this case the brake light.
It uses a BA15s bayonet base, a single-contact fitting where the bulb is inserted and rotated to lock into place, as opposed to a screw or push-fit base.
The BA15s base is not interchangeable with the BA15d base, which is a dual-contact bayonet fitting used on twin-filament bulbs, and substituting one for the other is not compatible.