Proline® piston rings for Stihl FS55, FS75, FS80, FS85, HT70, HT75 plus many more. see list below. Rings are Not made in China. SP81, BG75, FR85T, FR85, HS45, HS81R, HS81RC, HS81T, HS81TC, HS86R, HS86T, HL45, KR85, FS75, FS80, FS80R, FS85, FS85R, FS85T, FS85RX, KM55, KM55C, KM55R, KM55RC, SH55, SH85, KM85, KM85R, HS75, HS80, HS85, KW85, BG45, BG46, FS55, BG55, BG65, BG85, HT70, HT75.
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