This exhaust gasket donut seal replacement is designed for 2009–2011 Polaris Sportsman XP 550 and 850 models and installs between the main exhaust pipe and the muffler. A worn or leaking exhaust gasket in this location can cause exhaust noise, leakage, or improper sealing at the joint. This gasket is constructed with a stainless steel mesh core wrapped in a graphite outer layer and installs as a direct replacement on the listed applications. Sold individually. Verify model and exhaust configuration before ordering to ensure correct fit. Fitment 2009–2011 Sportsman XP 550 (including X2 and Touring) 2009–2011 Sportsman XP 850 (including X2 and Touring) Replaces Part Number(s) 3610156 3610179