The Polaris RZR XP 4 900 obviously can hold more people than the RZR XP 900! A great UTV for a family to go on a ride and enjoy the time together! For the RZR XP 4 900 we have many different UTV Accessories, this category is Power Steering Kits. We carry a Super ATV Power Steering Kit, this kit will help your steering and handling immensely. Be sure to check out our different UTV Accessories we have for the Polaris RZR XP 4 900!!