Fitment first · Trimmer · SKU B0G4FXJFKF

4 Inch Mini Chain Bar

4 Inch Mini Chain Bar for Stihl GTA 26 Pruner Wood Saw, Chainsaw Chains Replace for Stihl 71 PM3 28E and 3670 005 0028 Parts 30070030101, 71PM328

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Compatibility checkpoint

Verify this before you buy

4 listed model matches
1 Match the machine model

Compare the model printed on your trimmer label with the fitment list below.

2 Confirm the line and spool spec

bar & chain

3 Check the part code

Match part B0G4FXJFKF or ASIN B0G4FXJFKF against the listing and your old part.

Listed model matches
Stihl GTA 26 Pruner Wood SawChainsaw Chains ReplaceStihl 71 PM3 28E and 3670 005 0028 Parts 3007003010171PM328
Equipment brandStihl
ReplacesB0G4FXJFKF
Spool typebar & chain
CategoryTrimmer
ConditionNew aftermarket replacement

Overview

This compact mini chain bar is designed for handheld pruning saws that tackle light trimming and detail work. When the original bar wears out or the chain dulls beyond resharpening, this aftermarket replacement restores precision cutting for small branches. The short bar length provides excellent control and reduces fatigue during extended pruning sessions.

Key specifications

  • Mini replacement bar for handheld pruning saws
  • 4” bar length
  • Compact design for detailed pruning work
  • Hardened guide rail for extended life

Compatibility

This mini bar is designed for Stihl pruning saws as listed above. Confirm the bar mount pattern and chain specifications before purchasing.

Installation notes

Remove the bar cover screws and slide the old bar off the saw. Clean the mounting area and oil passage, then fit the new bar and chain with the cutters facing the correct direction. Adjust chain tension until snug but still freely rotating by hand.

Common questions

Q: Will this 4 inch mini chain bar fit my Stihl GTA 26, and does it work with 71 PM3 28E / 3670 005 0028 chains?

Yes, this bar is intended for the Stihl GTA 26 pruner saw and is matched to the 4 inch setup that uses Stihl 71 PM3 28E / 3670 005 0028 style chains. It’s important to confirm you’re using the correct 28-drive-link chain version for the GTA 26, since similar mini saw bars and chains from other brands may look close but won’t tension or track correctly.

Q: Can I install this replacement bar myself on a GTA 26, or do I need special tools?

Most users can install it with basic hand tools by removing the sprocket cover, taking off the old chain and bar, then fitting the new bar and reinstalling the chain with the cutting edges facing the correct direction on the top of the bar. After installation, set the chain tension so it sits snug in the bar groove but can still be pulled around by hand, then recheck tension again after the first few cuts.

Q: What maintenance should I do on this 4 inch mini chain bar to keep it cutting straight and lasting longer?

Keep the bar groove clean, make sure the oiling path is not blocked, and inspect the rails for uneven wear or burrs whenever you sharpen or replace the chain. Using the correct chain type, maintaining proper tension, and avoiding dirty wood or ground contact will help prevent premature bar wear and keep the GTA 26 cutting smoothly.

Compatibility

This page lists compatible equipment gathered from the product fitment data. Always confirm the model number stamped on your machine before ordering.

Stihl GTA 26 Pruner Wood SawChainsaw Chains ReplaceStihl 71 PM3 28E and 3670 005 0028 Parts 3007003010171PM328

Not sure which spool you need? See our guide: How to wind a trimmer spool or How to measure your old spool.

Before you buy — how to verify fitment

  1. Find your trimmer model number. It's usually on a label on the motor housing, battery slot, or lower shaft.
  2. Check spool compatibility. Compare the model number with the compatibility list above.
  3. Verify line gauge. Confirm the line thickness matches what your trimmer head requires by checking your manual or the old spool.
  4. Inspect the spool housing. Make sure the spool diameter, cap, spring post, and feed style match your trimmer head.

Frequently asked questions

How do I know this spool fits my trimmer?

Check your trimmer model number against the compatibility list above. Then verify the line gauge (.065, .080, .095) matches what your trimmer head requires — it's usually printed on the spool cap or in the manual.

Can I rewind a pre-wound spool?

Yes. Once the factory line runs out, you can rewind the spool with bulk trimmer line of the same gauge. Pre-wound spools just save time on the first load.

How often should I replace the spool?

Replace the spool when the line no longer feeds properly, the spring loses tension, or the spool body is cracked. Under normal weekend use, a spool lasts 2–4 refills before the housing wears out.

What gauge trimmer line should I use?

Match the gauge to your trimmer's power: .065" for light-duty electric trimmers, .080" for mid-range cordless, and .095" for gas-powered or heavy-duty models. Using too thick a line can stall the motor.

Where to buy

This part is available through Amazon with free returns on most orders. Use the fitment details above to compare your model, old part number, and physical specs before ordering.

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