Fitment first · Trimmer · SKU B0F7QZ81K8

6PC HT21-401-003-02 HT21-401-003-03 HT19-401-003-06 HT22-401-03-05…

6PC HT21-401-003-02 HT21-401-003-03 HT19-401-003-06 HT22-401-03-05 ht19-401-003-07 Replacement Trimmer Spool for Hyper Tough K1018 20V String Trimmer, For La…

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Compatibility checkpoint

Verify this before you buy

2 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

pre-wound spool

3 Check the part code

Match part B0F7QZ81K8 or ASIN B0F7QZ81K8 against the listing and your old part.

Listed model matches
Hyper Tough K1018 20V String TrimmerLawnMaster 20VMWGT & CLGT2410H Weed Eater
Equipment brandHyper Tough, Weed Eater
ReplacesB0F7QZ81K8
Pack6-pack
Spool typepre-wound spool
CategoryTrimmer
ConditionNew aftermarket replacement

Overview

This pre-wound replacement spool drops directly into compatible string trimmers, eliminating the hassle of hand-winding line. Worn or empty spools leave trimmer owners without a cutting edge mid-job. Keeping spare aftermarket spools on hand ensures minimal downtime and consistent line feed during yard work.

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 Hyper Tough string trimmers as listed above. Confirm the spool part number, line diameter, and trimmer model before ordering to ensure a proper fit.

Installation notes

Power off the trimmer and press the tabs on the spool housing to release the cover. Pull out the empty spool and clear any debris from the housing interior. Drop in the new spool, route the line through the eyelets, and snap the cover back on.

Common questions

Q: Will this 6-piece spool set fit my Hyper Tough K1018 20V string trimmer, and do the HT21-401-003-02 / HT21-401-003-03 numbers need to match exactly?

Yes, this set is made for the Hyper Tough K1018 20V String Trimmer and also fits LawnMaster 20VMWGT and CLGT2410H models. Those replacement numbers are compatible part references for this spool set, so the important thing is matching your trimmer model first rather than needing every printed number on the old spool to be identical.

Q: How do I install these replacement spools on a LawnMaster CLGT2410H without the line tangling or feeding incorrectly?

Remove the battery first, then open the trimmer head and take out the old spool and cap. Drop the new spool in with the line routed through the eyelets, make sure it spins freely in the correct direction, and leave a short length of line extended before snapping the cap back on to help it feed properly.

Q: Are these HT19-401-003-06 / HT22-401-03-05 replacement spools pre-wound, and is there anything I should do to make them last longer?

Yes, these are pre-wound replacement spools, so you can install them directly without manually winding new line. For longer life, avoid hitting concrete, chain-link fencing, and thick woody stems, and clean grass debris from the spool housing regularly so the auto-feed system doesn’t bind up.

Compatibility

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

Hyper Tough K1018 20V String TrimmerLawnMaster 20VMWGT & CLGT2410H Weed Eater

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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