C3 2 Automatic Cutting Head For Fsa 57 Fse 52 Spool Nylon Line Trimmer

Replacement trimmer head with 0.080" cord for Stihl FSA 57 battery trimmers You need to check the serial number of the FSA 57. Only suitable for FSA 57 trimmers from serial number 5XXXXXXXX. Replaces OEM Part No: 4009 710 2106 Replacement C3-2 trimmer head for mowing and thinning work. Tap the cutting head to automatically adjust the cutting line, refill the cutting line from the outside without opening the case Uses the 2mm green nylon line. Refilling nylon is very easy with the easy-to-install replacement spools.