High Quality aftermarket cylinder kit assembly. 50mm bore with 12mm pin. For Stihl 044 MS440 chainsaw Includes: cylinder, piston, rings, wrist pin, cir clips Replaces OEM part: 1128 020 1227 This Cylinder have a Decompression Hole. *Older 044 chainsaws made before serial number X29 382 283 have a 10mm wrist pin. There are a few rare chainsaws that are after that serial number that also have a 10mm wrist pin. Please verify your pin size before ordering |