3PC 10 Inch Chainsaw Chains

§ Saw Chains · SKU B0BXP9WHK2

3PC 10 Inch Chainsaw Chains

$22 ★ 4.5

3PC 10 Inch Chainsaw Chains, Replacement Chain for WORX WG309,10'' Chain for Sun Joe SWJ803E SWJ807E - 3/8'' .050'' 40 Drive Links

Bar length10"
Pitch3/8"
Gauge.050""
Drive links40DL
CategorySaw Chains
Part numberB0BXP9WHK2
ConditionNew — aftermarket replacement

Fitment last verified:

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Overview

This chain is manufactured to OEM specs for WORX WG309 saws, providing dependable cutting performance as an aftermarket alternative. Comes in a convenient 3-pack, giving you a ready spare. A sharp chain means less effort, cleaner cuts, and safer operation compared to pushing through wood with worn teeth.

Key specifications

  • Bar length: 10”
  • Pitch: 3/8”
  • Gauge: .050”
  • Drive links: 40
  • Quantity: 3 chains per pack

Compatibility

This replacement chain works with WORX WG309. Always confirm your saw’s model number and bar length before ordering to ensure proper fit.

Installation notes

Turn off the chainsaw and remove its power source before servicing. Unscrew the bar cover, back off the tensioner, and pull the old chain free. Route the fresh chain around the clutch drum and into the bar groove, making sure the drive links seat properly. Tighten the tensioner until the chain snaps snugly against the underside of the bar but still slides freely, then run the saw briefly at idle to confirm smooth tracking.

Common questions

Q: Will this 3-pack of 10 inch chains fit my WORX WG309 chainsaw, or do I need to match anything besides the bar length?

Yes, these chains are made for the WORX WG309 and match the 10-inch bar with a 3/8 pitch. It’s still a good idea to confirm your current chain markings or owner’s manual so the pitch and overall chain size match your saw exactly before installation.

Q: I’m replacing the chain on my WORX WG309 for the first time—do these install the same way as the original chain?

Yes, installation is the same as the factory chain: unplug the saw, remove the side cover, loop the chain around the drive sprocket and bar, and make sure the cutter teeth on the top of the bar face forward. After reinstalling the cover, set the chain tension so it sits snug against the bar but can still be pulled around by hand with gloves on.

Q: How often should I sharpen or replace these 10 inch 3/8 chains on a WORX WG309?

Sharpen the chain whenever it starts producing fine sawdust instead of wood chips, pulls to one side, or requires extra pressure to cut. Replace the chain if the cutters are worn down, the chain stretches excessively, or you see damaged links that could affect safe operation.

Compatibility

This part is verified to fit the following equipment. Always confirm the model number stamped on your machine before ordering.

WORX WG309

Not sure which chain you need? See our guide: How to count drive links or Chain pitch, gauge & drive links explained.

Before you buy — how to verify fitment

  1. Find the bar stamp. Look on the side of your current guide bar for the pitch, gauge, and drive-link count.
  2. Match all three numbers. Pitch (3/8), gauge (.050"), and drive links (40DL) must all match.
  3. Check bar length. Measure cutting length from the tip to where the bar enters the saw body — this should match 10".
  4. Confirm your saw model against the compatibility list above. If your model isn't listed, the chain may still fit if pitch/gauge/DL match.

Frequently asked questions

How do I know this chain fits my saw?

Match three numbers: pitch, gauge, and drive-link count. All three must match the stamp on your current bar. If even one is off, the chain won't fit safely.

How do I measure pitch and gauge?

Pitch is the distance between any three consecutive rivets, divided by two. Gauge is the thickness of the drive links — measure with a caliper or check the bar stamp. Our guide covers both in detail.

How long does a replacement chain last?

With proper tension and occasional sharpening, an aftermarket chain lasts 3–5 cords of firewood or about 5 hours of active cutting — roughly the same as OEM.

Can I sharpen this chain or is it single-use?

Absolutely sharpen it. A quality replacement chain can be sharpened 3–5 times before the cutters are too short. Keep a round file matched to the cutter diameter.

Where to buy

This part is available through Amazon with free returns on most orders. We've verified the fitment listed above — check the live listing for current price, stock, and delivery options.

Check current price on Amazon

Affiliate disclosure: we may earn a commission when you purchase through this link, at no extra cost to you.

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