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What does an ignition module do
Keep your STIHL chainsaw running smoothly in the harshest winter conditions with the STIHL ASK 20 Snow Chains RT 4112
but certified eye protection (safety glasses) is still recommended
Replacing worn or damaged brushcutter control handles
Supports consistent starting
Sprocket 7T .325" MS250, MS250C HT56C What does an ignition moduleGenuine STIHL Sprocket 7T . 325" (OEM: 1123 640 2074) for use with STIHL MS250 and MS250C chainsaws. This 7 tooth spur sprocket drives the saw chain around the guide bar and should be replaced when worn to prevent accelerated chain wear. Available from Gustharts, authorised STIHL dealer.