Cylinder Piston Kit Piston Kit High Silicone Aluminum Alloy For Chainsaw For Husqvarna 266 266 SE 162 Feature:1. Come with strong heat dissipation ability due to the use of lightweight aluminum alloy with high silicon content2. It has a good thermal match with the piston and reduces the weight of the whole machine, the thermal conductivity is increased by 42% compared with the bimetal structure3. Made one piece of molding at a time, increase the strength of the machine body and improve the surface hardness, more durable4. The product has greatly improved wear resistance, corrosion resistance and high temperature resistance5. It has rising power, strong gas compression ability, clear thread and smooth knob, not easy to jam, very smoothSpecification:Item Type: Cylinder Piston KitMaterial: High Silicone Aluminum AlloyCylinder Diameter: Approx. 52mm/2inPackage List:1 x Bearing1 x Cylinder1 x Piston1 x Piston Wheel2 x Piston Ring1 x Piston Pin3 x Gasket1 x Spark Plug1 x Plastic Shell