Features Replacement Part Number: The replacement part number is 530069940, 530029794, 530029794, 530071987, 530056363, 530055128 Good Heat Dissipation: This cylinder set is designed in mesh type, has a large heat dissipation area, ensuring long term operation of the machine Long Service Life: The cylinder parts are one piece molding without burrs, stable and durable, has long service life Good Replacement: Made of high silicon aluminum alloy and alloy steel, this cylinder set is a good replacement for original broken one Compatible for: This cylinder set is easy to assemble, compatible for Husqvarna 137 142 136 141, has good compatibility Specification: Item Type: Cylinder Piston Kit Material: High silicon aluminum alloy, alloy steel Package List:1 x Cylinder1 x Piston1 x Piston Ring2 x Snap Ring1 x Carburetor2 x Washer3 x Bearing1 x Crankshaft1 x Muffler1 x Sparking Plug2 x Oil Sealing1 x Pin Note:Match the appropriate model before use. Package List 1 x Cylinder 1 x Piston 1 x Piston Ring 2 x Snap Ring 1 x Carburetor 2 x Washer 2 x Bearing 1 x Crankshaft 1 x Sparking Plug 2 x Oil Sealing 1 x Pin 1 x Piston Needle Roller 1 x Oil Filter