Item Type: Clutch Drum Sprocket Material: Aluminium Alloy OE: 1125-640-2000 Compatible: Fit for STIHL MS290 MS310 MS390 029 039 Chainsaw Package List 1 x Clutch Assembly Cover 1 x Clutch Assembly 1 x Clutch Drum Sprocket 2 x Sprocket Bearing 1. Please double check the part number of your item, matching information is for reference only.2. If you are unsure of the item, please contact us before buying to avoid unnecessary return, thanks 1Application: Clutch sprocket bearing kit is suitable for STIHL MS290 MS310 MS390 029 039 Chainsaw, ensuring a smooth and reliable operation. 2Part Number: OEM number of clutch sprocket bearing kit for reference is 11256402000. Please double check the part number of your item before ordering. 3Correct Sprocket Size: With a sprocket size of 3/8in and 7 teeth, the chain sprocket bearing set is optimized for efficient cutting performance. 4Long Durability: This set is highly impact and scratch resistant, ensuring long term durability and reliable performance in tough environments. 5Direct Replacement: Professional manufacturing, this is your ideal option and replacement for your rebuild, repair, and maintenance needs.