Ignition Coil Fit for MS661 MS661C 1144 400 1301 Chainsaw Ignition Coil Module Accessories 1Compatible: Ignition coil fits for MS661 MS661C 1144 400 1301 chainsaw. To be sure of purchasing the correct part, please check the details for compatibility. 2Corrosionproof: With excellent stability even under unconventional conditions, it is corrosionproof and suitable for long term use. 3High Performance: It can improve combustion efficiency and strengthen electrical performance. Provides a higher strength spark with faster recovery and response. 4Easy to Replace: Replaces existing ignition coil, only replace it and you can reuse. Increase Ignition energy strength for easy starting and smoothing riding. 5Useful Accessories: If your previous accessories are broken or old, then this is perfect for you to replace the broken or old ones directly.