Greenworks 60V/80V Trimmer Spool — Dual Line Replacement That Actually Feeds

If your Greenworks 60V or 80V string trimmer has started acting up with inconsistent line feed, line jamming, or a head that seems to burn through one side of the string faster than the other, you’re not alone. Spend a little time in owner forums or community discussions and you’ll see the same complaint come up again and again: the auto-feed system gets blamed, but in many cases the real issue is the spool itself. A worn, poorly wound, or slightly misshapen spool can cause all kinds of frustrating feeding behavior.

For owners of compatible Greenworks trimmers, a simple spool replacement is often the easiest and cheapest fix. One standout option is the 6PC SB00L00 Dual Trimmer Line Replacement Spool for Greenworks STBA80L210, ST80L210, ST60L2510, ST80L00, ST60L00, ST60L210, ST60B00, ST60B211, ST60B212. At $19.99 for a 6-pack, it’s an inexpensive way to restore proper line performance without replacing the whole trimmer head.

The Problem

Greenworks string trimmers are generally well-liked for their power and convenience, especially in the 60V and 80V lines. But one recurring pain point shows up in user reports: auto-feed issues.

Common symptoms include:

• The line won’t advance properly during use
• One side of the line feeds more than the other
• The spool binds inside the head
• The trimmer keeps stopping because the line is too short
• The line tangles or fuses together inside the spool
• You have to open the head repeatedly just to keep trimming

Many owners initially assume the trimmer head mechanism has failed. Sometimes that’s true, but often the spool is the weak link. A spool can cause problems if:

• The line is wound too tightly
• The line is wound unevenly
• The plastic spool body is slightly warped
• The spool dimensions are off from wear or poor reloading
• The line material is old or brittle

This is especially common when people try to rewind their own line or continue using a spool that’s already been through several cycles. Even if the trimmer itself is fine, a bad spool can make the whole machine feel unreliable.

That’s why a pre-wound replacement like the SB00L00 dual-line spool is such a practical fix. It addresses the part most often responsible for erratic feed performance, without forcing you into a more expensive repair.

Our Pick

The product we recommend here is:

6PC SB00L00 Dual Trimmer Line Replacement Spool for Greenworks STBA80L210 ST80L210 ST60L2510 ST80L00 ST60L00 ST60L210 ST60B00 ST60B211 ST60B212 String Trimmer
ASIN: B0DSJB6FPK
Price: $19.99
Rating: 4.2/5

What you’re getting is a 6-pack of replacement dual-line spools designed for a range of Greenworks 60V and 80V trimmers. That works out to roughly $3.33 per spool, which is excellent value if you trim regularly through the season.

Why this is a strong buy:

• Pre-wound dual-line design helps reduce feed problems compared with DIY rewinds
• Multi-pack value means you can keep extras on hand
• Targeted fitment for specific Greenworks models
• Low cost per spool compared with buying individually
• Good user rating at 4.2, suggesting generally solid owner satisfaction

For many users, the best part is convenience. Instead of spending time rewinding line and troubleshooting feed issues, you swap in a fresh spool and get back to work. If your current spool is chewed up, binding, or inconsistent, this is often the fastest path to restoring normal trimming performance.

Compatibility

This replacement spool is listed to fit the following Greenworks string trimmer models:

• STBA80L210
• ST80L210
• ST60L2510
• ST80L00
• ST60L00
• ST60L210
• ST60B00
• ST60B211
• ST60B212

That’s a useful spread across Greenworks’ 60V and 80V families, but fitment still matters. Before ordering, it’s worth checking the exact model number on your trimmer’s label rather than relying only on battery platform branding. Greenworks often has similar-looking trimmers with different heads or spool systems, so “60V Greenworks trimmer” alone is not enough to guarantee compatibility.

A few practical checks before you buy:

• Verify the exact model number on the tool housing
• Confirm your trimmer uses the SB00L00 spool style
• Compare your existing spool shape and tabs to the product photos
• If your trimmer has had a head replacement in the past, verify the current head still matches original spec

If your machine matches one of the model numbers above, this spool should be a straightforward fit.

Installation Tips

Installing a replacement spool is usually simple, but a few small mistakes can create feed issues even with a new part.

Basic steps:

1. Power off the trimmer and remove the battery
2. Open the trimmer head according to your model’s cap release design
3. Remove the old spool and clear out any dirt, grass, or melted line debris
4. Insert the new spool in the correct orientation
5. Feed the line ends through the eyelets if required
6. Reinstall the cap securely
7. Pull each line lightly to make sure it moves freely before use

A few gotchas to watch for:

• Clean the head housing first. Packed-in grass and dust can interfere with smooth feeding.
• Check the spring. If your trimmer head uses a spring, make sure it stays seated during installation.
• Don’t cross the line ends. If they aren’t routed cleanly, the spool may jam immediately.
• Inspect the cap and eyelets. If those parts are heavily worn, a new spool alone may not fully solve the problem.
• Test gently at first. Run the trimmer briefly and confirm line advancement before starting a full edging job.

If your trimmer still has feed issues after replacing the spool, the problem may be with the head mechanism, cap retention, spring tension, or eyelet wear rather than the spool itself.

Watch: Video Guide

If you want a visual walkthrough for replacing or troubleshooting the trimmer spool, here’s a helpful video guide:

Why This Over OEM?

The biggest reason to consider this spool set over OEM is value. At $19.99 for six spools, you’re getting a low per-unit cost that makes sense for homeowners who trim frequently and don’t want to keep paying premium prices for consumables.

Here’s why it stands out:

1. Better price per spool

OEM replacement spools are often sold in smaller quantities and can cost noticeably more per piece. Even if OEM pricing varies by retailer, aftermarket multi-packs like this usually come in well below the factory-branded cost on a per-spool basis.

2. Easier to stock up

Consumable parts are most annoying when they fail mid-job. A 6-pack means you can keep several ready in the garage, which is especially useful during peak growing season.

3. Likely solution to a common feed issue

Because many Greenworks owners report that feed trouble is often spool-related rather than head-related, replacing the spool first is a sensible and low-risk step. It’s much cheaper than replacing the complete trimmer head assembly.

4. Quality appears solid for the price

A 4.2-star rating suggests this isn’t a bargain-bin part with widespread fit or durability complaints. That doesn’t make it identical to OEM, but it does indicate that most buyers are getting acceptable performance and compatibility.

That said, honesty matters: aftermarket parts can vary a bit more than genuine OEM parts in plastic finish, line stiffness, or long-term consistency. If you’re a commercial user who runs a trimmer constantly, you may still prefer OEM for maximum predictability. But for typical residential trimming, this pack offers a very reasonable balance of cost, availability, and performance.

FAQ

1. Will this fix auto-feed problems on my Greenworks trimmer?

If the issue is being caused by a worn, warped, tangled, or poorly wound spool, then yes, this type of replacement often fixes the problem. If the trimmer head itself is damaged, the spring is missing, or the eyelets are worn out, a new spool may help only partially or not at all.

2. Does this fit all Greenworks 60V and 80V trimmers?

No. It fits specific models, including STBA80L210, ST80L210, ST60L2510, ST80L00, ST60L00, ST60L210, ST60B00, ST60B211, and ST60B212. Always verify the exact model number on your trimmer before ordering.

3. Is this a better option than rewinding my own spool?

For most homeowners, yes. Rewinding line yourself can save money, but it also introduces more chances for uneven winding, line binding, and feed problems. Pre-wound replacement spools are faster, simpler, and often more reliable if your goal is hassle-free trimming.

If your Greenworks trimmer has become frustrating to use, this SB00L00 dual-line replacement spool 6-pack is a smart first fix to try. It directly addresses one of the most common causes of poor line feeding, fits a clearly defined set of Greenworks models, and does it at a price that makes sense. For under twenty bucks, it’s a practical maintenance buy that can save a lot of aggravation.