Polaris RZR Inlet Water Gasket, Genuine OEM Part 5813736 is designed and tested by Polaris Engineers to ensure durability and quality through hundreds of hours and thousands of miles of field, lab, and validation testing. Spend more time out on the trails and less time indoors. Polaris has been a leader in the powersports industry for nearly 70 years. Don't settle for anything less than OEM quality.