WSM Performance 50-305PK Piston and Ring Kit Polaris 400L 2x4, 400L 4x4, Scrambler 400 2x4, Scrambler 400 4x4, Sport 400, Trail Blazer 400, Xplorer 400 4x4 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003