Fitment first · Trimmer · SKU B0F43TV58N

12PC Replacement Trimmer Line

12PC Replacement Trimmer Line for Greenwork ST60L254 ST60L04,16-ft Pre-Cut Line 49-16-2810 for Milwaukee 2825-20/2825-21ST 2825-20ST String AC0580PCL for RYO…

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Compatibility checkpoint

Verify this before you buy

5 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-cut line

3 Check the part code

Match part B0F43TV58N or ASIN B0F43TV58N against the listing and your old part.

Listed model matches
Greenwork ST60L254 ST60L0416-ft Pre-Cut Line 49-16-2810Milwaukee 2825-202825-21ST 2825-20ST String AC0580PCLRYOBI RY40250 Pre-Cut line
Equipment brandRyobi, Milwaukee
ReplacesB0F43TV58N
Pack12-pack
Spool typepre-cut line
CategoryTrimmer
ConditionNew aftermarket replacement

Overview

Engineered for durability, this aftermarket trimmer line provides consistent cutting performance for residential and light commercial trimming. Line diameter directly affects cutting ability: thicker line handles heavier vegetation, while thinner line works best for fine grass trimming. This replacement line matches the OEM specification for your trimmer.

Key specifications

  • Replacement trimmer line
  • Commercial-grade nylon construction
  • Resistant to fraying and breakage
  • Compatible with bump-feed and fixed-line trimmer heads

Compatibility

This line is compatible with Milwaukee trimmers as listed above. Verify the line diameter matches your trimmer’s specification to ensure proper fit in the spool housing and guide eyelets.

Installation notes

Turn off the trimmer, remove the spool housing cover, and extract the spool. Cut the new line to the length specified on the spool or in the trimmer manual. Wind evenly in the direction indicated by the arrow on the spool, reinstall, and test the bump-feed advance.

Common questions

Q: Will this 12PC replacement trimmer line fit my Greenworks ST60L254, or is it only for Milwaukee and RYOBI models?

Yes, this pre-cut line is compatible with the Greenworks ST60L254 and ST60L04, as well as Milwaukee 2825-20, 2825-21ST, 2825-20ST, and RYOBI RY40250 that use the listed pre-cut line style. The main thing to confirm is that your trimmer head is designed for 16-ft pre-cut replacement line rather than bulk spool line.

Q: How do I install these 16-ft pre-cut lines on my Milwaukee 2825-20 trimmer head?

On the Milwaukee 2825-20, remove the battery first, then open the trimmer head according to the tool’s instructions and pull out the old line if needed. Insert one 16-ft pre-cut piece evenly through the head or load it as your head design requires, making sure both sides are balanced so the trimmer feeds and cuts smoothly.

Q: Are these replacement lines suitable for regular grass trimming, and how often should I replace them?

Yes, these pre-cut lines are intended for routine trimming around grass, edges, and light weeds on compatible Greenworks, Milwaukee, and RYOBI trimmers. Replace the line when it becomes too short to feed properly, starts breaking frequently, or shows heavy fraying, since worn line reduces cutting efficiency and puts more strain on the trimmer.

Compatibility

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

Greenwork ST60L254 ST60L0416-ft Pre-Cut Line 49-16-2810Milwaukee 2825-202825-21ST 2825-20ST String AC0580PCLRYOBI RY40250 Pre-Cut line

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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