Description:* 100% Brand New and High Quality* Easy Installation and Durable* Perfect Replacement Spare Parts* Replacement Parts Suitable for Stihl FC55 FS38 FS45 FS55 HL45 HS45 KM55.* Part Reference Number: 4140 400 1308. Warm Encouragement:* Do not work for STIHL FS38 with part number: 41401308A / 4140 1306A.* Do not work for STIHL HS45 with part number: 4140 1303A* Do not work for KM55 RC-E DZ or R-DZ models coil mark with reference part number 4140 400 1308* If your number reference with "A" finally, please don't choose this product, thank you very much. Package include: 1 x ignition coil Note: 1. We provide clear photos, measurements where possible. Please check as much as possible to make sure the item is the one you need.2. Please allow 0.5-1 inch difference due to manual measurement.(1 inch=2.54cm)3. There are no instructions included in this set. If you want to know how to use or install it, by email. We will provide assistance as much as possible.