ITEM NAME:Clutch Drum Sprocket Kit For STIHL MS250, MS230, MS210, MS180, MS170, 017, 018, Description: For STIHL MS170 MS180 MS210 MS230 MS250 017 018 021 023 025 Chainsaw Replace For OEM: # 11236402005 / 1123 640 2005 Clutch Drum Type: 3/8" Pitch 6 Tooth Material: alloy Color: as picture shown Package Includes: 1pc Clutch 1pc Clutch Drum 1pc Needle Bearing 2pcs Clutch Washer Note: Please allow 1-2mm errors due to manual measurement. Please be carefully check the goods appearance, size, shape and then compare your original goods before ordering, avoid items you buy that don't match your tools. SKU: DMO0003787360017798.For STIHL MS170 MS180 MS210 MS230 MS250 017 018 021 023 025 Chainsaw. Clutch Drum Type: 3/8" Pitch 6 Tooth. 1pc Clutch Drum. 1pc Clutch. 2pcs Clutch Washer. Replace For OEM: # 11236402005 / 1123 640 2005.