Fitment first · Trimmer · SKU B0F42J17BW
6PC Replacement Spool 144-4108 Spooled Trimmer Line
6PC Replacement Spool 144-4108 Spooled Trimmer Line for Toro Model: 51831 51831T 51881 51834 51834T 60V 13" & 15" Electric Brushless Max String Trimmer
Compatibility checkpoint
Verify this before you buy
Compare the model printed on your trimmer label with the fitment list below.
pre-wound spool
Match SKU B0F42J17BW or ASIN B0F42J17BW against the listing and your old part.
Before you buy — how to verify fitment
- Find your trimmer model number. It's usually on a label on the motor housing, battery slot, or lower shaft.
- Check spool compatibility. Compare the model number with the compatibility list above.
- Verify line gauge. Confirm the line thickness matches what your trimmer head requires by checking your manual or the old spool.
- 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 sold and shipped through Amazon; return options are shown on the listing. Use the fitment details above to compare your model, old part number, and physical specs before ordering.
Affiliate disclosure: we may earn a commission when you purchase through this link, at no extra cost to you.
Compare
