Steering Knuckle, Machined, Left, Part 5143613 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: ATV , 2025 Sportsman XP 1000 Mud Edition , 2025 Sportsman Touring XP 1000 Trail , 2025 Sportsman 850 Trail , 2025 Sportsman 850 Mud Edition , 2024 Sportsman XP 1000 Hunt Edition , 2023 Sportsman XP 1000 Ride Command Edition , 2022-2025 Sportsman Touring 850 , 2022-2025 Sportsman 850 Premium , 2022-2025 Sportsman 850 , 2022-2025 Scrambler 850 , 2022-2024 Sportsman XP 1000 High Lifter Edition , 2022-2024 Sportsman 850 Ultimate Trail , 2022-2024 Sportsman 850 High Lifter Edition , 2022 Sportsman XP 1000 Ultimate Trail , 2022 Sportsman XP 1000 Ride Command Limited Edition , 2022 Sportsman XP 1000 Hunter Edition , 2021 Scrambler 850