USB Harness, Part 2412818 is a critical component in the electrical system. It is designed and tested by Polaris Engineers through thousands of miles of field testing and hundreds of hours of lab validation testing to ensure durability and quality to make your riding experience as enjoyable as possible. We've been a leader in the powersport industry for nearly 70 years, don't settle for anything less than OEM quality. This Accessory is Designed to Fit the Following: Snowmobiles , 2023 ProStar S4 TITAN Adventure 155 , 2022-2023, 2019 800 TITAN Adventure 155 , 2022 850 RMK KHAOS AXYS 165 2.75" , 2022 850 PRO RMK AXYS 165 2.75" , 2022 850 PRO RMK AXYS 163 3" , 2022 850 PRO RMK AXYS 155 3" , 2022 850 PRO RMK AXYS 155 2.75" , 2021-2022, 2019 800 TITAN XC 155 , 2021, 2019 850 Switchback XCR , 2021 850 PRO-RMK QD2 174 3" , 2021 850 PRO-RMK QD2 165 2.75" , 2021 850 PRO-RMK QD2 163 3" , 2020-2021 850 INDY XCR 129 , 2020-2021 600 INDY XCR 129 , 2020-2021 600 INDY Adventure 137 , 2020, 2018 800 Switchback XCR , 2020 800 RMK KHAOS 155 3" , 2020 800 RMK KHAOS 155 , 2020 800 INDY XCR 129 , 2020 800 INDY XC 137 , 2020 800 INDY Adventure 137 , 2019-2021, 2017 600 Switchback PRO-S , 2019-2021 850 Switchback PRO-S , 2019-2021 850 PRO-RMK 163 , 2019-2020, 2017 800 Switchback PRO-S , 2019-2020, 2015-2017 800 RUSH PRO-S , 2019-2020 850 RUSH PRO-S , 2019-2020 850 PRO-RMK 174 , 2019-2020 800 PRO-RMK 174 , 2019-2020 800 PRO-RMK 155 3" , 2019-2020 800 PRO-RMK 155 , 2019-2020 800 INDY XC 129 , 2019, 2017 800 PRO-RMK 163 , 2019, 2015-2017 600 RUSH PRO-S , 2019 850 SKS 155 , 2019 850 SKS 146 , 2019 850 RUSH XCR , 2019 850 PRO-RMK 163 3" , 2019 850 PRO-RMK 155 3" , 2019 850 PRO-RMK 155 , 2019 850 INDY XC 129 , 2019 800 TITAN SP 155 , 2019 800 PRO-RMK 163 3" , 2019 600 RUSH XCR , 2019 600 INDY XC 129 , 2018-2021 600 Switchback XCR , 2018-2020 800 SKS 155 , 2018-2020 800 SKS 146 , 2018 800 Titan XC 155 , 2018 800 Titan SP 155 , 2018 800 Titan Adventure 155 , 2018 800 Switchback Pro-X