Specs: Bottom End Kit, Engine Type: 4-Cycle, Includes: Crankshaft, Connecting Rods, Gasket Set, Oil Seal Kit, and Main Bearing and Seal Kit Compatible With/Replacement For: Polaris Ranger 900 4x4 Crew 2014-2015, Ranger 900 XP 2013-2015, RZR 4 900 2015, RZR 900 50 Inch 2015, RZR 900 55 Inch 2015, RZR 900 60 Inch 2015 1-year warranty protects you after your purchase. We're confident that our products will work flawlessly once installed in your vehicle. But in a rare case that it does not, we'll replace it anytime within one year of your order. If you have a problem, we will take every step to assist you, contact us for a replacement. 100% New aftermarket Bottom End Kit built to meet OEM specifications