Cylinder and piston kit for HUSQVARNA chainsaw: 357 XP, 357 XP EPA, 357 XP EPA I 359, 359 EPA, 359 EPA I JONSERED: 2159, CS2156 CS2159 Diameter 47 mm HUSQVARNA Reference : 176-523 Original code : 503 91 98-71 537 15 73-02 537 15 73-04