Piston Kit Grizzly 600 Pk1057High Performance Piston Kit with Gaskets for 4 StrokeComplete piston kit includes pistons, rings, wrist pins, circlips and top end gasket kit for one complete engine Wiseco ring types are not interchangeable (i. e., CD is not interchangeable with LC) Wiseco pistons can be fitted only with Wiseco rings Cylinder sleeves must be purchased separately. Kit Includes: Piston #4797M09500 Ring Set #3740XH Wrist Pin #S566 Wrist Pin Retainer Kit #CW22 Gasket Kit