... Parts 1130 030 2004, 11300302004 for 018, MS180 chainsaw ST1800638 mm Piston assembly with ring for 018, MS180 chainsaw For 1130 030 ... 350, HUS 365, HUS 61, HUS 268, HUS 272. 38 mm Piston assembly with ring Chainsaw Parts 1130 030 2004, 11300302004