1. Applicable Model: The ignition coil is suitable for STIHL MS251 MS261C chainsaw, replacement number 1141 400 1307, safe and high reliability. 2. Easy to Install: Simple to install and use, simply install the ignition coil module on the appropriate model, without any special adjustment. 3. Durable: The product is made of high-quality steel and rubber materials, with high hardness, wear resistance, durability and long service life. 4. Professional: It features stable performance, professional manufacturing, superb craftsmanship, and high precision, which help provide the best performance. 5. Replacement Accessories: Perfect accessories for garden tools, which can effectively extend the service life of the machine and perfectly match your chainsaw.