This is American Stars New Super Strong 4130 Chromoly Tie Rod End Set for almost all Polaris Sportsman 400, 500, 570, 600, 700 and 800 ATV Models. It also replaces almost every other model of Polaris ATV since 2005. It replaces your weak stock OEM Tie Rod ends with ends that are nearly 5 times stronger than your stock ones! It would cost you over twice as much money to buy the stock OEM Polaris ends and they will wear out at least twice as fast. These replace Polaris OEM Part Numbers 7061138 and 7061139. Be sure to check that your Polaris ATV takes these number ends before you order as there are only a few that do not take these ends.