This left side trailing arm is compatible with Polaris Xtra 12 XLT Indy Ultra snowmobiles. It is a genuine part made by the manufacturer and will fit perfectly into your machine. The trailing arm has been tested for quality and durability to ensure a long-lasting performance and safe ride. With this replacement part, you can get back to enjoying your snowmobile without worrying about the condition of your vehicle. It is a must-have item for anyone who wants to keep their Polaris snowmobile running smoothly. Don't miss out on this opportunity to upgrade your machine and get back to the slopes.