Sprocket Clutch 3/8" Replaces 1123 640 2003 And 1123 640 2073 For Stihl 017 018 Product Details Fits Stihl chainsaws: 017 018 021 023 025 MS170 MS180 MS210 MS230 MS250. Clutch assembly replaces for: 1123 160 2001. Worm gear replaces for: 1123 640 7102. 3/8 LP pitch spur sprocket replaces for: 1123 640 2003, 1123 640 2073. You will get: 1pc Sprocket ,1pcClutch ,1pc sprocket bearing ,1pc e-clip ,1pc washer, 1pc Worm Gear ,2pc Bar Nut. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.