2PC 18 Inch Chainsaw Chain

§ Saw Chains · SKU B0BTBWD426

2PC 18 Inch Chainsaw Chain

$22 ★ 4.3

2PC 18 Inch Chainsaw Chain for Worx WG304, WG304.1, WG304.2, 18" Replacement Chain for Craftsman 172.34120-3/8" - .050" - 63 Drive Links

Bar length18"
Pitch3/8"
Gauge.050""
Drive links63DL
CategorySaw Chains
Part numberB0BTBWD426
ConditionNew — aftermarket replacement

Fitment last verified:

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Overview

Bundled as 2 chains, this chain is a direct replacement for Worx WG304 models. A worn chain strains the motor and increases kickback risk, so timely replacement keeps your saw running safely and efficiently.

Key specifications

  • Bar length: 18”
  • Pitch: 3/8”
  • Gauge: .050”
  • Drive links: 63
  • Quantity: 2 chains per pack

Compatibility

Manufactured to fit Worx WG304 without modification. Check your owner’s manual or the existing chain’s markings to verify pitch, gauge, and drive link count before ordering.

Installation notes

Power down the saw and disconnect the battery or spark plug lead. Remove the side cover and release bar tension. Take the old chain off the bar and sprocket, then thread the new chain into the bar groove, confirming the cutting edges face forward on the top rail. Set the tension so the chain pulls freely without sagging away from the bar, and do a brief test run to verify everything tracks correctly.

Common questions

Q: Will this 18-inch 3/8 pitch chain fit my Worx WG304 electric chainsaw, or do I need to match anything else besides the bar length?

Yes, this chain is made to fit the Worx WG304 with an 18-inch bar and 3/8 pitch, so it matches the key specs for that saw. Before installing, it’s still smart to compare the old chain markings and confirm your bar hasn’t been swapped to a different setup, since bar length and pitch both need to match.

Q: Since this is a 2-pack, can I swap between the two chains on my WG304 to make them last longer?

Yes, alternating between the two chains is a good maintenance habit, especially on a saw like the WG304 that may see longer cutting sessions. Rotate them after sharpening or when one starts to dull, and keep proper chain tension each time you reinstall so the bar and drive system wear more evenly.

Q: Do I need to do anything special when installing this replacement chain on my Worx WG304 for the first time?

After fitting the chain, make sure the cutting teeth on the top of the bar face forward, then set the tension so the chain sits snugly but still pulls around by hand with light resistance. Run the saw briefly, let the chain settle, and recheck tension again, because a new chain will often stretch slightly during initial use.

Compatibility

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

Worx WG304

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 (63DL) must all match.
  3. Check bar length. Measure cutting length from the tip to where the bar enters the saw body — this should match 18".
  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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