Brand new snap ring holds the helix onto the secondary clutch. Exact replacement for Polaris 7710448. Sold EACH. Fits the following machines and more: 2004-05 ATP 330 2005 ATP 500 1997 Big Boss 400 6x6 1998-99 Big Boss 500 6x6 1999-01 Diesel 2011-14 Hawkeye 400 2000-02 Magnum 325 2003-06 Magnum 330 1997-98 Magnum 425 1999-02 Magnum 500 2010-14 Ranger 400 1999-13 Ranger 500 1997-02 Scrambler 400 1997-12 Scrambler 500 1997-99 Sport 400 1999-00 Sportsman 330 2001-05 Sportsman 400 2011-14 Sportsman 400 HO 2006-07 Sportsman 450 2016-20 Sportsman 450 HO 1997-13 Sportsman 500 2014-20 Sportsman 570 2003-05 Sportsman 600 2002-04 Sportsman 700 2015 Sportsman ETX 1997-06 Trail Blazer 250 2008-13 Trail Blazer 330 2003 Trail Blazer 400 1997-02 Trail Boss 325 2003-13 Trail Boss 330 2000-01 Xplorer 250 1997-01 Xplorer 300 1997-02 Xplorer 400 1997 Xplorer 500 1997-99 Xpress 300/400 1999-01 Worker 335/500