Piston Ring Set Compatible With Stihl TS410 TS420 MS440 & MS441 OEM 11280343000
TS410, TS420, 044, MS440, MS441, MS441C. Stihl 1128 034 3000. Piston Size Std. We will always go out of our way to source the product you are looking for. Replaces OEM. Ethanol Not compatible with greater than 10% ethanol fuel.