Feature 1Fitment: Cylinder piston kit is replacement for STIHL MS390 MS290 MS310 029 039 Chainsaw, which is made according to the prototype model. 2OEM Number: Chainsaw cylinder piston kit replace part number is 1127 020 1216. Please make sure the OEM number matches the part you are replacing. 3Excellent Advantages: Low noise, low expansion coefficient, good heat dissipation, strong power and low fuel consumption, low friction surface. 4Reliable Material: Die cast aluminum material, firm and precise, safe and durable, not easy to break and has long service life. 5Ideal Replacement: High accuracy and perfect match to meet your demands, allowing you to directly replace original damage one.Item Type:CylinderPistonKitMaterial:DiecastaluminumCylinder Diameter: Approx: 46mm/1.81inOEM Number:11270201216Application:ReplacementforSTIHLMS390MS290MS310029039Chainsaw .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Cylinder1 x Piston2 x G Ring1 x Pin2 x Gasket1 x Bottom CoverNote1.Please double check the part number of your item, matching information is for reference only.2.If you are unsure of the item, please contact us before buying to avoid unnecessary return, thanks!