RO6G FSA57 Replacement Spool -FSA 57 Stihl Trimmer Head Replacement Stihl Autocut C3-2,Stihl Trimmer Head 4009 710 2106-3 Pack

What It Is

This is a 3-pack of replacement spools for the Stihl Autocut C3-2 trimmer head. It’s designed to reload line on Stihl FSA 57 battery trimmers and other models using the same head (part number 4009 710 2106). Each spool comes pre-wound with 0.095-inch (2.4mm) diameter line.

Fitment & Compatibility

Check these before buying:

• Trimmer head: Must be Stihl Autocut C3-2 (OEM part 4009 710 2106). This spool won’t fit other Stihl heads (e.g., Autocut 25-2, PolyCut).
• Trimmer models: Confirmed for Stihl FSA 57, FSA 65, FSA 90, FSA 130, and FS 55, FS 70, FS 90 series trimmers. Verify your model’s head type.
• Line size: Uses 0.095″ (2.4mm) round line. If your trimmer requires a different diameter (e.g., 0.080″ for lighter cutting), this won’t work.
• OEM vs aftermarket: This is a third-party part, not Stihl-branded. Fitment is generally fine, but quality can vary.

Key Things to Know

• Pre-wound but check tension: Some users report the line is loosely wound and may need re-tensioning before use.
• Installation is straightforward: Remove old spool, press in new one, and feed line through the head’s eyelets. No tools required.
• Line wears faster than OEM: The aftermarket line tends to be softer, so expect more frequent replacement vs. Stihl-branded spools.
• 3-pack value: At ~$8 per spool, it’s cheaper than buying single OEM spools, but you get less durability.

Should You Buy It

Buy this if you run a Stihl FSA 57 or compatible model, need a budget-friendly bulk option, and don’t mind swapping spools more often. Skip it if you want OEM-grade line life or need a different line diameter. Good for light-to-moderate trimming.