Nylon Line Head Replaces Stihl AutoCut 25-2. Suitable for the following Stihl Machines Replaces OEM Part No.s 4002 710 2108, 4002 710 2191. FS 56 (2008 on), FS 70, FS 70 RC. The nylon line is automatically adjusted by tapping the cutting head against the ground.
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