Guide

Worx Weed Eater Parts Compatibility Guide: Which Parts Fit Your Model? | Fit Check

Worx trimmer parts are model-specific: match the full model number — WG160, WG184, WG191 — to Worx’s own compatibility list before buying.

Two Worx trimmers can share the same 20V battery and still need different spools. Worx builds its replacement parts around the full model number — WG160, WG184, WG191 — not the voltage badge, so the starting point for any Worx weed eater parts compatibility guide is the label on the trimmer housing, not the photo on the parts page.

Get the number right and the rest is mechanical: correct spool, correct line diameter, cap seated. Get it wrong and the head feeds line badly or not at all.

Which Worx Trimmer Parts Fit Which Models?

Each Worx part number covers a fixed list of models, and that list — not appearance, not voltage — decides whether a part drops in. The table below pairs current US part numbers with the models Worx lists for them.

Worx sells repair parts in three families: pre-wound spools, spool caps that lock the spool in place, and wheels for the edging and mini-mower functions on GT-series trimmers. Line diameter is built into the part number, so two spools that look identical in the head are not interchangeable.

Part Number Models Worx Lists Line And Notes
WA0004 spool and line WG150–WG157 (including.5 variants), WG160, WG160.1, WG160.2, other 20V/32V models, plus 40V WG180 Two pre-wound spools, 10 ft each, about 0.065 inch; too small for WG124
WA0014 spool and line WG168, WG184, WG190, WG191 About 0.08 inch line; does not fit 20V/32V trimmers or WG180
WA0037 spool cap WG184, WG191 40V Power Share and 56V heads; secures the spool
WA0043 wheel set WG160, WG167, WG175 Optional; assists edging and mini-mower use
WA0207 spool and cap Canada listing: WG122, WG150–WG157, WG160, WG162, WG163, WG165–WG167, WG170, WG175, WG180 10 ft of 0.065 inch line; confirm US availability
WA0209 line coils WG185, WG186 Five pre-cut 13 ft coils, 0.095 inch line
Corded 100 Series spool and cap WG105–WG120 and similar electric models Corded trimmers only; not for battery models

Two rows cause most of the returns. Worx lists the WA0004 spool as fitting the 40V WG180 and then says the same spool is too small for the WG124 — one voltage class, two different answers. Worx’s replacement spool and cap chart also carries the WA0207 spool and cap on a Canadian catalog page, so confirm the US model list and availability before ordering that one.

How Do You Match A Part To Your Worx Trimmer?

Start with the complete model number on the housing or rating label, then confirm both the part number and the model list on the Worx catalog page for that part. One check without the other is how wrong parts get ordered.

  1. Find the full model number on the trimmer housing, rating label, packaging, or owner’s manual. WG160, WG160.1, and WG160.2 are three separate listings.
  2. Note the power source: corded electric, 20V or 32V battery, 40V Power Share, or 56V.
  3. Search that exact model number in the official Worx US accessories catalog.
  4. Confirm the part number and check that your model appears in its fits list.
  5. Cut the power first — unplug a corded trimmer, remove the battery from a cordless one.
  6. Install only the specified spool, line diameter, cap, or wheel, following the owner’s manual for the removal and installation steps.

Worx caps snap into place and hold the spool; when the cap seats flush and the head stops wobbling, the swap is right.

Corded and battery trimmers belong to different spool families, so settle that question before you shop. Worx states the Electric 100 Series spools for WG105 through WG120 do not fit battery-operated trimmers.

Comparing spools, caps, and wheels side by side before checkout? Our tested roundup of the best Worx weed eater parts lines each option up against the models in the table above.

Worx Weed Eater Parts Compatibility: Where The Matches Go Wrong

Most mismatches trace back to five assumptions, and each one is cheap to check before you order.

  • Voltage equals fit. Trimmers sharing a 40V or 20V spec can still use different spool geometry, caps, and line sizes.
  • WA0014 on a WG180. Worx separates the WG180 from the WG168, WG184, WG190, and WG191 family that takes the roughly 0.08 inch line.
  • Corded spools on a battery trimmer. The Electric 100 Series parts are corded-only.
  • Line diameter by feel. Worx spools run about 0.065, 0.08, and 0.095 inch; a thicker line that fits physically can still overload a head built for 0.065.
  • Running without the cap. Worx says the cap secures the spool, and the trimmer cannot work properly without it.
  • Treating wheels as required. WA0043 wheels aid edging and the mini-mower function, yet compatible trimmers run without them.

Order by number, not by picture: write the model number down, match it to the fits column, and buy that part number. That single habit prevents nearly every wrong-part return in this category.

Common Questions

Can I run a 40V spool on a 20V Worx trimmer?

Usually no. Worx lists WA0014, the spool for the WG168, WG184, WG190, and WG191, as not fitting 20V or 32V battery trimmers, and the 20V family’s WA0004 spool uses thinner line. The WG180 is the exception: it takes WA0004 despite being a 40V model, so trust the model list over the voltage.

Where do I find the model number on a Worx trimmer?

Worx prints it on the trimmer housing and on the rating label, and it repeats on the original packaging and in the owner’s manual. Copy the whole string, including any decimal suffix, because WG160, WG160.1, and WG160.2 are listed as separate models with their own parts. The catalog search and fits lists are keyed to that full number.

Do Worx replacement spools come pre-wound?

Most of them do. The WA0004 pack holds two pre-wound spools with 10 feet of roughly 0.065 inch line each, WA0014 arrives pre-wound in about 0.08 inch line, and WA0209 is five pre-cut 13-foot coils of 0.095 inch line rather than a spool. You seat these in the head instead of winding line by hand.

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