Piston Kit 23235C 23235CTop End Piston Kit for 2 StrokeThe piston is heat treated with a T 5 hardening and tempering cycle The piston skirt is coated with high tech Molybdenum Disulphite for faster break in time and increased piston life The cast piston is gravity cast aluminum alloy (not forged) with 18% silicone content Cast OE replacement piston Top end kit includes piston, rings, pins, circlips, top end gaskets, and wrist pin bearing