This listing will fit the following models: 2003 2004 2005 2006 2007 2008 POLARIS SPORTSMAN 500 6X6 You will receive the following: 12 T Steel Sprocket This sprocket has a 520 pitch. All Race-Driven Steel sprockets are manufactured to meet or exceed OEM specifications. Please make sure when purchasing sprocket(s) you do so according to your ATV and riding style. You can search our store for sprockets that will give you more take-off speed or top-end speed or contact customer service and we’ll be happy to direct you to what you need.