Fitment: (2011-2014) Polaris RZR 900, (2012-2014) RZR 4 900. For OE/Super ATV A-Arms only. 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. Features: HDPE Materials, Comparable to OEM, Better price point, Injection molded. Kits include bushings for both front and rear A Arms.