Features: 1.Applicable Model: Cylinder piston gasket kit is designed for STIHL MS440 044 Chainsaw. Please confirm whether your model is applicable before buying. 2.Reference OE: 1128 020 1227 is the replacing reference part numbers. Please double check the part number of your item to ensure perfect fit. 3.Characteristic: Cylinder piston kit has low noise, small expansion coefficient, good heat dissipation, strong power, low fuel consumption, and small friction surface. 4.Reliable Material: Die cast aluminum material is selected, cylinder piston kit is sturdy, safe and durable, not easy to break, has long service life. 5.Ideal Replacement: Professional manufacturing, perfect fit to meet your needs, allowing you to directly replace the original damaged one. Specification: Item Type: Cylinder Piston Kit_x000D_ Material: Cast Aluminum_x000D_ OEM: 1128 020 1227_x000D_ Cylinder Diameter: 50mm / 2in_x000D_ Fitment: For STIHL MS440 044 Chainsaw Note: 1. Please double check the part number of your item, matching information is for reference only._x000D_ 2. If you are unsure of the item, please contact us before buying to avoid unnecessary return, thanks!