This is a new clutch spider nut socket tool by Hi-Caliber Powersports Parts that fits the following Polaris UTVs: 2011-2013 Polaris RZR XP 900, 2012-2013 Polaris RZR 4 XP 900, 2014-2017 Polaris RZR 4 900, 2014-2017 Polaris RZR 900, 2015-2017 Polaris RZR S 900. This item replaces Polaris oem tool number PU-50578. A necessary tool for removing and installing the primary drive clutch spider jam nut. This tool is constructed of 100% top quality cold rolled carbon steel, with a hardness of HRC 37. This high quality, heat treated steel ensures lasting durability and strength for repeated use. The tool features a durable, black oxide finish and is laser etched with the size and logo for easy identification. Each tool comes with a free Hi-Caliber Powersports Parts & G&H Discount ATV Supply decal! *PLEASE NOTE: Tools are not returnable for a refund.