Micro Relay, Part 4011998 is a relay that goes in fuse box. It is hand picked and validated through field testing by Polaris engineers 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 , 2020-2022 600 INDY SP 137 , 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 , 2019-2022 600 INDY SP 129 , 2019-2021, 2017 600 Switchback PRO-S , 2019-2020, 2017 800 Switchback PRO-S , 2019-2020, 2017 800 PRO-RMK 163 , 2019-2020, 2015-2017 800 RUSH PRO-S , 2019-2020 800 PRO-RMK 174 , 2019-2020 800 PRO-RMK 163 3" , 2019-2020 800 PRO-RMK 155 3" , 2019-2020 800 PRO-RMK 155 , 2019-2020 800 INDY XC 129 , 2019-2020 600 INDY 121 , 2019, 2017 600 RUSH XCR , 2019, 2016-2017 600 PRO-RMK 155 , 2019, 2015-2017 600 RUSH PRO-S , 2019 600 Switchback SP 144 ES , 2019 600 INDY XC 129 , 2018-2021 600 Switchback XCR , 2018-2020 800 SKS 155 , 2018-2020 800 SKS 146 , 2018-2019 600 Voyageur 144 , 2018 800 Switchback Pro-X , 2018 800 Switchback Pro-S , 2018 800 Rush XCR , 2018 800 Rush Pro-X , 2018 800 Rush Pro-S , 2018 800 Pro RMK 174 3 Inch , 2018 800 Pro RMK 163 3 Inch , 2018 800 Pro RMK 163 , 2018 800 Pro RMK 155 3 Inch , 2018 600 Switchback SP 144 , 2018 600 Switchback Pro-S , 2018 600 Rush XCR , 2018 600 Rush Pro-S , 2018 600 Pro RMK 155 , 2018 600 Indy SP , 2018 600 Indy , 2017-2020 800 Switchback Assault 144 , 2017-2019 800 Switchback Adventure , 2017-2019 800 RMK Assault 155 , 2017-2019 600 Switchback Assault 144 , 2017-2019 600 Switchback Adventure , 2017-2018 800 Pro RMK 155 , 2017 800 SWITCHBACK PRO-S - LE 60TH , 2017 800 Switchback Assault 144 2.0 , 2017 800 RUSH XCR , 2017 800 RMK SKS