20-inch replacement chain fitment for DEWALT DCCS677 series saws

Fitting the chain onto the bar and sprocket

This Opuladuo 20 inch chainsaw chain is intended for DEWALT DCCS677Y1 chainsaws and is also listed as a 20” replacement chain for DEWALT DCCS677B and DCCS677Z1 60V chainsaws. If you need a 20 inch replacement chain for one of those saws, this is the model family this product page is built around.

The chain is described as being made from high-quality steel with a durable coating to help resist wear and tear. It is also designed to deliver strong cutting performance for routine replacement needs.

Will this chain fit your saw?

Measuring chain pitch, gauge and drive links

This chain is listed for these DEWALT models:

  • DEWALT DCCS677Y1
  • DEWALT DCCS677B
  • DEWALT DCCS677Z1

The known fitment spec provided for this product is:

  • Bar length: 20”

That said, bar length alone is not the only thing that determines fit. Before ordering any chainsaw chain, confirm all of the following on your current chain, guide bar, or saw documentation:

  • Bar length: 20”
  • Chain pitch
  • Chain gauge
  • Drive-link count

Those four specs must match your saw’s setup for proper fit and safe operation. Many buyers check only the 20 inch bar length, but two different 20 inch chains can still be different if the pitch, gauge, or drive-link count does not match.

A simple way to confirm fit is to inspect the markings on your guide bar. Chainsaw bars often list the chain specifications needed. If the bar markings are worn off, compare your existing chain packaging or owner’s manual. If your saw is a DEWALT DCCS677Y1, DCCS677B, or DCCS677Z1 with the correct 20” bar setup, this chain is the intended replacement type for this listing.

Replacing the chain

Always replace a chainsaw chain carefully. If you are installing this chain on a DEWALT DCCS677Y1, DCCS677B, or DCCS677Z1, use these basic steps:

  1. Remove the battery and make sure the saw cannot start accidentally.
  2. Loosen the side cover and back off the chain tension so the old chain can be removed from the bar and drive sprocket.
  3. Fit the new chain around the sprocket and along the guide bar groove, making sure the cutter direction matches the saw’s normal cutting direction.
  4. Reinstall the side cover and adjust chain tension until the chain sits snugly on the bar but can still be pulled around by hand with a gloved hand.
  5. Check that the chain is seated correctly in the bar groove all the way around.
  6. Reinstall the battery only after everything is secured, then run the saw briefly and recheck tension.

A new chain can stretch slightly during initial use, so it is a good idea to stop after the first few cuts and verify the tension again.

Keeping it sharp

Sharpening a chainsaw chain cutter

A sharp chain cuts faster, puts less strain on the saw, and is safer to use than a dull one. A few practical habits make a big difference:

  • Keep the chain properly tensioned. A chain that is too loose can derail, while one that is too tight can wear the bar and drive components faster.
  • Avoid cutting into dirt, mud, or rocks. Even a brief touch with the ground can dull cutters quickly.
  • Maintain regular chain lubrication and inspect the bar groove and oiling path when you swap or sharpen the chain.

If cutting performance drops, the saw pulls to one side, or you see fine dust instead of chips, it is usually time to sharpen the chain or replace it.

FAQ

Is this chain only for the DEWALT DCCS677Y1?
No. This product is also listed as a 20” replacement chain for DEWALT DCCS677B and DEWALT DCCS677Z1 chainsaws.

Is matching the 20 inch bar length enough to confirm fit?
No. You should also verify the chain pitch, gauge, and drive-link count. A 20” chain must match all of those specs, not just the bar length.

What is this chain made from?
According to the listing, the chain is made from high-quality steel and features a durable coating to help protect against wear and tear.

Get this chain

Ships from Amazon — check current price, stock and full fitment on the listing.