Fitment first · Trimmer · SKU B0FRLZBSW5

6PC T25 Replacement Real Spool

6PC T25 Replacement Real Spool for Husqvarna 122C 128LD 122L 128LX 128R 130C 223L 115iL Line Trimmer, Replacement line for T25 Trimmer Head 966674401 Spool &…

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Compatibility checkpoint

Verify this before you buy

3 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

.095"

3 Check the part code

Match part B0FRLZBSW5 or ASIN B0FRLZBSW5 against the listing and your old part.

Listed model matches
Husqvarna 122C 128LD 122L 128LX 128R 130C 223L 115iL Line TrimmerReplacement lineT25 Trimmer Head 966674401 Spool & LINE T25 - .095 537338601 Spool
Equipment brandHusqvarna
ReplacesB0FRLZBSW5
Pack6-pack
Spool typepre-wound spool
CategoryTrimmer
ConditionNew aftermarket replacement

Overview

This aftermarket replacement spool comes pre-loaded with trimmer line at the correct diameter and winding pattern for your trimmer. When the original spool runs empty or the line becomes brittle from UV exposure, swapping in a fresh spool is faster than re-winding. The pre-wound design ensures consistent bump-feed performance from the start.

Key specifications

  • Pre-wound replacement trimmer spool
  • 6-pack quantity
  • Direct-fit for listed trimmer models
  • Bump-feed compatible winding pattern

Compatibility

This spool is designed for Husqvarna string trimmers as listed above. Confirm the spool part number, line diameter, and trimmer model before ordering to ensure a proper fit.

Installation notes

Turn off the trimmer and remove the spool cover by pressing in the retaining tabs. Remove the old spool and wipe out the housing. Insert the replacement spool, thread the line ends through the eyelets, and snap the cover into place. Test the bump-feed mechanism by tapping the head and pulling the line.

Common questions

Q: Will this 6PC T25 replacement spool fit my Husqvarna 128LD and 122C trimmer, or is it only for the T25 head 966674401?

Yes, these spools are made for the Husqvarna T25 trimmer head and are compatible with models that use that head, including the 128LD and 122C. It also fits other listed models like 122L, 128LX, 128R, 130C, 223L, and 115iL, as long as your trimmer is using the T25 head that takes spool 537338601.

Q: Are these replacement spools pre-wound with .095 line, and do I need to rewind them before installing?

These are replacement real spools for the T25 setup that uses .095 trimmer line, so they are intended to match the Husqvarna 537338601 spool specification. Installation is usually just opening the T25 head, removing the old spool, and dropping the new one in with the line ends routed correctly through the eyelets.

Q: My T25 head keeps tangling or not feeding line correctly on my Husqvarna 115iL—will replacing the spool help, and is there anything I should check during installation?

A worn or damaged spool can definitely cause poor line feeding, binding, or uneven bump feed, so replacing it often solves that issue. While installing, make sure the spring and cap are seated properly, the line exits cleanly through both eyelets, and there is no debris packed inside the head, since dirt and grass buildup can also cause feeding problems.

Compatibility

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

Husqvarna 122C 128LD 122L 128LX 128R 130C 223L 115iL Line TrimmerReplacement lineT25 Trimmer Head 966674401 Spool & LINE T25 - .095 537338601 Spool

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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