General description Snow-Ignition Coil Magnetic Chainsaw Module is designed to fit various models of Stihl and Husqvarna chainsaws, trimmers, and blowers. This high-quality ignition coil ensures stable performance and a long service life, making it an ideal choice for parts replacement. Technical specifications Fits Stihl MS171, MS181, MS211 Compatible with Husqvarna models: 232R, 235R, 225R, 435, 440, 445, 450 Replaces OEM part numbers: 537038501, 5038658-01, 503 86 58 01, 573935702, 5739357-02