Upgrade your Polaris snowmobile with a brand new idler bogie wheel inner. This part is specifically designed for Polaris 1997-2019 Widetrak LX or LX ES 550 models and manufactured by a trusted brand, Polaris. The wheel inner is made to fit perfectly and ensure optimal performance. With the manufacturer part number 1543018, you can be sure that you are getting a high-quality replacement for your original wheel inner. Get back on the snow with the confidence that your snowmobile is equipped with the best parts.