Keeping your garden or job site neat and tidy means having your STIHL brushcutter or grass trimmer working at its best. Over time, strimmer lines wear out, blades dull, and heads become damaged or less efficient. Whether you're a professional landscaper or a home gardener, replacing these parts can dramatically improve your cutting performance.
In this guide, we’ll walk you through the essential replacement options for STIHL strimmers, including popular products, how to change them, and handy tips to make the job easier.
Why Replacing STIHL Cutting Attachments Matters
STIHL trimmers are built to last, but consumable parts like line, blades, and heads naturally wear out. Replacing them regularly ensures:
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Cleaner and faster cutting
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Reduced strain on the machine
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Improved safety and efficiency
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Lower long-term maintenance costs
Key Replacement Products
Here are some of the most commonly used and recommended STIHL cutting attachments:
🔁 Replacement STIHL Strimmer Line
Available in various diameters and shapes depending on your trimming needs:
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STIHL Round Line – Great for general lawn trimming. Smooth and durable.
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STIHL Square Line – Offers a sharper edge for tougher grass and weeds.
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STIHL CF3 Pro Line – A premium line reinforced with carbon fibre for heavy-duty work.
Tip: Always choose the correct line diameter for your strimmer head – check your manual or the old spool for guidance.
🛠️ STIHL Strimmer Heads
Whether you're using an electric trimmer or a petrol brushcutter, STIHL offers a variety of heads:
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AutoCut Heads (e.g. AutoCut C 6-2, C 26-2) – Automatically feed line as needed; perfect for general use.
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SuperCut Heads – Automatically adjusts line length while operating. Great for consistent trimming.
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DuroCut Heads – Pre-cut line segments for fast and easy line replacement.
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TrimCut Heads – Manual feed heads with a rugged design for professional use.
Top Pick: STIHL AutoCut C 26-2 – A popular choice for mid-range petrol trimmers. Easy to reload and offers reliable automatic line feed.
🔪 STIHL Metal Cutting Blades
For overgrown areas, woody weeds, and brambles, metal blades are essential:
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Grass Cutting Blades – Ideal for thick grass and reeds.
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Brush Knives – Great for tougher undergrowth and dense vegetation.
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Circular Saw Blades – Designed for clearing saplings and woody shrubs (use only with approved harnesses and guards).
Popular Option: STIHL 3-Tooth Grass Blade – Durable, reversible, and designed for efficient mowing in wild areas.
How to Replace STIHL Strimmer Line or Head
Here’s a quick step-by-step guide for a standard AutoCut head:
🔄 Replacing the Strimmer Line:
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Remove the Spool Cover: Press the tabs or unscrew the cap.
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Take Out the Old Line: Remove any leftover pieces.
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Cut New Line: Cut two lengths of the correct diameter line (check your head type for the length).
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Wind the Line: Wind each line onto the spool in the direction of the arrow.
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Feed Through Eyelets: Insert the lines through the head and replace the spool inside.
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Snap on the Cover: Make sure it clicks into place.
Tip: Keep an extra spool of pre-wound line in your kit for fast swaps on the job.
🔄 Replacing the Trimmer Head or Blade:
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Switch Off and Remove Spark Plug Cap (for petrol machines) or disconnect the power.
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Secure the Shaft: Use the locking pin to prevent rotation.
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Unscrew the Existing Head or Blade: Turn clockwise or anti-clockwise depending on the model.
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Fit the New Head or Blade: Make sure washers and spacers are correctly aligned.
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Tighten Firmly: Use the correct tool, avoiding over-tightening.
Safety Note: Always wear gloves and eye protection when changing blades or heads.
Tips & Tricks for Better Cutting
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Line Length: Don’t extend line too long — it can strain the engine and reduce efficiency.
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Keep Spare Line & Blades in Your Kit: Nothing worse than running out mid-job!
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Use the Right Attachment for the Job: Don’t use line on thick brambles – it wears fast and risks damage.
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Sharpen Blades Regularly: If you're using metal blades, check and sharpen them frequently for clean cuts.
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Clean After Use: A quick brush-off helps prevent build-up and extends tool life.
Where to Buy Genuine STIHL Replacement Parts
For guaranteed compatibility and durability, always use genuine STIHL parts. At Gustharts, you’ll find a full range of:
With expert advice and fast delivery, it’s the go-to shop for professionals and homeowners alike.
