2008-2013 Toyota Highlander Coolant Recovery Tank Carbon Do I need to polish

Do I need to polish these further

 General Purpose switches

Cast stainless steel tubes - Won't rust or degrade under engine heat like mild steel alternatives

Can I paint or coat this before installation

2008-2013 Toyota Highlander Coolant Recovery Tank Carbon Do I need to polish20082013 Toyota Highlander Coolant Recovery Tank Direct replacement coolant recovery tank for your Highlander's cooling system. This hard panel construction tank mounts to factory locations and integrates seamlessly with your existing coolant loop. No modification neededbolt it in and you're done. Factory Mounting Points Direct from Warehouse Ships from FL Warehouse Key Features OEM equivalent capacity Maintains proper coolant levels without overflow