FITS: stihl 027, 029, 039, 044, 046, 1127, 1128, 1133, MS 270, MS 280, MS 290, MS 341, MS 361, MS 390, MS 440, MS 441, MS 461 c hainsaws. stihl blower models: 4203, SR 360, BR 320, BR 400, BR 420. stihl 4116, FS 340, FS 360, FS 500, FS 550 brush cutter.
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