Polaris Sportsman 450 HO Tail Light Bulb Size

The Polaris Sportsman 450 HO tail light uses a 3157 bulb size for this model. The replacement chart covers vehicle production years from 2016 to 2019 with corresponding bulb specifications.

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
2016-2019	3157

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Dual-filament wedge bulb (T25). 12V, 27W/7W.	3157

Other Locations

Additional Notes

The Polaris Sportsman 450 HO uses the 3157 bulb across the 2016-2019 model years for the tail light position.
The 3157 is an ANSI-standardized bulb type recognized across the United States and Canada, meaning it conforms to a defined set of electrical and physical parameters shared by all compliant manufacturers.
This bulb operates on a dual-filament design within a T25 wedge base, where one filament runs at 27W for braking or signaling functions and the other runs at 7W for lower-intensity running light functions.
The wedge base format means the bulb is held in its socket by the tension of the base itself rather than by a bayonet or screw mechanism, which affects how the bulb is seated and removed.
The 12V operating voltage of the 3157 is consistent with the standard electrical system voltage found in most production powersports vehicles.
Because the 3157 is a dual-filament type, substituting it with a single-filament bulb of a similar base style would result in the loss of one lighting function, making filament count a critical factor in replacement selection.
The T25 designation refers to the bulb's envelope size, which must be physically compatible with the tail light housing of the Sportsman 450 HO to seat and seal correctly.