The #1931 '90 - '99 Polaris 400 Liquid Cooled Side Panels are vintage parts made by Polaris in the United States. These black plastic panels are designed for ATV models from 1990 to 1999 and are compatible with specific Polaris make and machine types. The bolt-on mounting style makes installation easy, and these panels come with an OE/OEM part number for authenticity. While these parts are not covered under a manufacturer warranty, they are a reliable option for restoring or customizing your vintage Polaris ATV.