The all balls thermostat for polaris ace 500 4x4 2018-2019 is part of the latest collection from all balls.Features: direct oe thermostat replacement that is ready to use and includes o-ring gasket when required matches oem temperature specifications specifications: color finish: natural product name: thermostat research value: finalized riding style: atv utv style: oem design type: replacement units: each to fit: polaris ace 500 4x4 2018 american models polaris ace 500 4x4 2019 american models polaris ace 570 4x4 2018 eps all models polaris ace 570 4x4 2019 eps all models polaris ace 900 xc 2018 eps american models polaris ace 900 xc 2019 eps american models polaris ranger 1000 4x4 2020 3-seat american models polaris ranger 1000 4x4 2021 eps 3-seat premium american models polaris ranger 1000 4x4 2021 eps 3-seat american models polaris ranger 1000 4x4 2022 eps 3-seat premium american models polaris ranger 1000 4x4 2022 eps 3-seat american models polaris ranger 1000 4x4 2023 eps 3-seat premium american models polaris ranger 1000 4x4 2023 eps 3-seat american models polaris ranger 1000 4x4 2024 eps 3-seat premium all models polaris ranger 1000 4x4 2024 eps 3-seat all models polaris ranger 1000 crew-6 2020 6-seat all models polaris ranger 1000 crew-6 2021 eps premium american models polaris ranger 1000 crew-6 2021 american models polaris ranger 1000 crew-6 2022 eps premium american models polaris ranger 1000 crew-6 2022 american models polaris ranger 1000 crew-6 2023 eps prem...