Cylinder Assembly / Stihl 1121 020 1217Pack Size:1Stihl 1121 020 1217, Stihl 1121 020 1215Ahlborn FOR-6219, Ahlborn PS260, HL Supply H30026-BStihl MS260 chainsawsBore: 44.7 mm, Coating: Chrome, Includes: Piston, rings, pin and clips, Ethanol: Not compatible with greater than 10% ethanol fuel