ISE Non Genuine Replacement Torsion Spring for STIHL Chainsaws. Replaces Part Numbers: 1117 182 4500. Fits Models: STIHL MS230, MS230 C, 064, 042 AV, 024, 088, MS360, 044, MS362, MS362 C, 066, 021, 023, 025, MS340, MS660, MS880, MS380, MS640, MS440, MS260, MS260 C, MS211, MS211 C, MS250, MS250 C, MS361, MS361 C, MS381, MS181, MS181 C, MS780, 032, MS171, MS190 T, 034, 048, 028, 038, MS170, MS170 C, TS 400, MS341, MS290, MS310, MS390, 084, MS460, 019 T, 046, MS180, MS180 C, 017, MS311, MS391, 018, MS270, MS270 C, MS280, MS280 C, MS240, 036, 026, MS210, MS210 C, 029, 039, MS650, MS191 T.