General description Clutch drum sprocket bearing kit is an excellent replacement for broken and old parts of your Stihl MS391 MS311 3/8in-7T electric chainsaw. Made from high-hardness zinc alloy, this kit is durable, wear-resistant, and designed for a long service life. With exquisite workmanship and stable performance, it matches the original equipment perfectly. This practical accessory is reliable, not easy to deform, and safe to use. Technical specifications Condition: 100% Brand New Item Type: Chain Saw Accessory Material: Zinc Alloy Weight: Approx. 324g / 11.4oz Compatibility and accessories Compatible with Stihl MS391 MS311 3/8in-7T chainsaw Package includes: 1 Set x Clutch Kit (5Pcs) Installation Easy to install and remove