This is the most complete rebuild kit for your Rear Differential on the market! Kit Contains: 3 Needle Bearings; 12 Bearings; 4 Seals PLAY MORE & SPEND LESS: BossBearing has the replacement parts you need to keep your ATV, UTV, Dirt Bike, Street Bike and Snowmobile out of the garage and back in the action. Our kits save you money and time by giving you all the parts you need to repair or upgrade your ride at one place PEACE OF MIND: Every BossBearing product comes with a 1-year warranty that protects you after your purchase. We are confident that our products will work once installed in your vehicle. But in a rare case that it does not, we will replace it anytime within one year of your order. If you have a problem, we will take every step to assist you Rear Differential Bearing and Seal Kit. This is the most complete rebuild kit for your Rear Differential on the market! Kit Fits: Polaris Ranger RZR 4 XP 900 2012 2013 2014. Kit Contains: 3 Needle Bearing 12 Bearings 4 Seals Note: Please review product image for accurate representation of product contents.