Fitment: (2011-2014) Polaris RZR XP 900. When you're replacing a wear and tear item, it's in your best interest to replace it with an upgraded material that gives you a longer lifespan for your a arm bushings. At SuperATV, we utilize UHMW for our top of the line a arm bushing kits. UHMW is your best choice for long last a arm bushings. UHMW is a low wear material, ensuring you more miles than your factory bushings. What allows for it's low wear properties is in part due to the fact that UHMW is a self-lubricating material. With that, you have less friction between your bushings and a arm. Includes: (4) Large Bushings, (8) Small Bushings, (6) Replacement Sleeves.