Steering Knuckle, Machined, Right, Part 5139687 is a steering knuckle. The steering rack pushes the steering knuckle which is connected to the wheels and tires to have the rotary turning momentum. It is designed and tested by Polaris engineers to withstand higher compression loads acting on the wheel end through field and lab validation testing. Trust your steering parts are built for optimal performance since we''ve been a leader in the powersport industry or nearly 70 years. Don''t settle for anything less than OEM quality. Trust your steering parts are built for optimal performance since we''ve been a leader in the powersport industry or nearly 70 years. Don''t settle for anything less than OEM quality. This Accessory is Designed to Fit the Following: 2019 Sportsman 570 EPS, 2019 Sportsman 570 EPS, 2019 Sportsman 570 EPS, 2019 Sportsman 570 EPS, 2019 Sportsman 570 EPS, 2019 Sportsman SP 570 --, 2019 Sportsman SP 570 Touring, 2019 Sportsman 570 Touring EPS, 2019 Sportsman 570 Touring EPS, 2018 Sportsman 570 EPS, 2018 Sportsman 570 EPS, 2018 Sportsman 570 EPS, 2018 Sportsman 570 --, 2018 Sportsman SP 570 Touring, 2018 Sportsman 570 Touring EPS, 2017 Sportsman SP 570 --, 2017 Sportsman SP 570 Touring, 2016 Sportsman 570 --, 2016 Sportsman 570 EPS, 2016 Sportsman 570 EPS, 2016 Sportsman 570 --, 2016 Sportsman 570 Touring, 2015 Sportsman 570 --, 2015 Sportsman 570 EPS, 2015 Sportsman 570 EPS, 2015 Sportsman 570 --, 2015 Sportsman 570 Touring, 2020 A20SJS57CH SPORTSMAN 570 TOURING EPS TRACTOR SP , 2020 SPORTSMAN 570 EPS EUN , 2020 SPORTSMAN 570 PREMIUM HUNTER , 2020 SPORTSMAN 570 TOURING EPS TRACTOR SP , 2020 SPORTSMAN 570 HUNTER EDITION , 2020 SPORTSMAN 570 PREMIUM EU TRACTOR ZUGLOF , 2020 SPORTSMAN 570 PREMIUM PREMIUM LE , 2020 SPORTSMAN TOURING 570 PREMIUM EU TRACTOR ZUGLOF , 2020 SPORTSMAN TOURING 570 PREMIUM TRACTOR , 2021 SPORTSMAN 570 HUNTER PACKAGE , 2021 SPORTSMAN 570 SP TRAIL PACKAGE , 2021 SPORTSMAN 570 TOURING EPS LE , 2021 SPORTSMAN 570 TOURING PREMIUM