Part no 56-R749 (phoenixmotos.com) Namura 92.00mm piston ring set Application Polaris 500 Xplorer/Magnum 1996-03 500 Sportsman/Scrambler 1996-13 ATP500 H.O 2004-05 Big Boss 6x6 1998-00
RMK 4x4 1999-02 500 Ranger 6x6 1999-13 (Namura part no NA-50004R)
