The STIHL Autocut 40‑4 Trimmer Head is a high‑quality replacement designed for all STIHL brushcutters that use the Autocut 40‑4 or 56‑2 system. With a sturdy M14 × 1.50 thread and a 2.7 mm line diameter, this head delivers reliable cutting power for everything from grass edging to dense weeds.
Key features
- Four‑line “Tap N Go” design – simply tap the rotating head to advance the line automatically, keeping your work fast and uninterrupted.
- Broad compatibility – fits STIHL models FS360, FS360C, FS400, FS410C, FS420, FS450, FS460, FS460C, FS480, FS490, FS490C, FS500, FS510, FS550, FS560 and FS560C.
- Premium construction – forged aluminum housing resists wear and corrosion for long‑term durability.
- Easy installation – thread‑on design lets you swap the head in minutes without special tools.
This compatible trimmer head offers the same performance as the original part at a fraction of the cost. It’s perfect for homeowners and professionals who need a dependable brushcutter solution for trimming lawns, clearing overgrown areas, or thinning hedges.
Note: This is a third‑party replacement part and not an official STIHL component.
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