<p>1) [Good compatibility] Suitable for Husqvarna 136 137 141 142 chainsaw, high compatibility, stable performance, long service life.2) [Cylinder-piston kit] cylinder x 1, piston x 1, piston ring x 1, piston pin x 1, piston elastic holder x 2, oil seal x 2, paper seal x 2, intake tube x 1, needle bearing x 1, spark plug x 1, air filter x 1, carburetor x 1.3) [Easy to assemble] garden chainsaw accessories, exquisite workmanship, can be installed on the appropriate machine according to the applicable model.4) [Perfect replacement] Easy to install and replace, can directly replace the old parts or damaged parts, can fit your machine perfectly.5)[Excellent Material] Selected high quality aluminum, high hardness, durable, wear-resistant, not easy to deform or damage.Specification:Type Product details: chainsaw accessories Material: aluminum Weight: about 808 grams / 28.5 ounces Application: suitable for Husqvarna 136137141142 Chainsaw use: chainsaw Size: about 40 mm / 1.6 inches Packing list: 1 x cylinder 1 x piston 1 x piston ring 1 x pin piston2 x piston elastic retaining ring</p>