Fennoral 5 Pcs 4008 710 4302 Replacement String Heads & 2 Pcs FSE41-6235 Spool Cover Compatible with S-tihl FSA 56 FSA 57 String Trimmers Replaces 713 7000, 4008-713-7000, 40087137000

What It Is

This is a 7-piece replacement trimmer head set designed for cordless S-tihl FSA 56 and FSA 57 string trimmers. It includes 5 bump-feed string heads (OEM-style 4008 710 4302) and 2 spool covers (OEM-style FSE41-6235), intended to replace worn or broken original parts.

Fitment & Compatibility

• Exact models: S-tihl FSA 56 and FSA 57 battery trimmers only. Not for gas models or other FSA series trimmers (e.g., FSA 45, FSA 65, FSA 90).
• OEM part numbers replaced: 713 7000, 4008-713-7000, 40087137000 (for the heads) and FSE41-6235 (for the covers).
• Check before buying: Verify your trimmer head cap/housing is the same diameter as the original (approx. 4.1 inches). Measure your current spool cover to confirm it matches the FSE41-6235 shape (round with two locking tabs). Aftermarket parts may have slightly looser tolerances—test fitment before reassembly.
• Not compatible with straight-shaft trimmers or any model using a different bump-feed mechanism (e.g., AutoCut series).

Key Things to Know

• Installation difficulty: Easy. Remove the old spool cap, pull out the old string head, snap the new one into place, and wind the line. No tools required.
• Quality concerns: With a 3.7 rating from only 4 reviews, expect cheaper plastic than OEM. Some users report the bump-feed mechanism can be inconsistent—tap harder than usual to advance line.
• Line capacity: Each head holds about 12–15 feet of 0.080” or 0.095” trimmer line (not included). Don’t overfill; it can jam the bump feed.
• Spool cover fit: The replacement covers may be slightly thinner plastic—snap them on carefully to avoid cracking the tabs.

Should You Buy It

If you own an FSA 56 or FSA 57 and need a budget-friendly multi-pack to keep spare heads on hand, this works in a pinch. But for daily professional use or if you want OEM reliability, skip it and buy genuine S-tihl parts—the plastic quality and bump-feed consistency are noticeably better.