18 Inch Chainsaw Chain Replacement for EGO CS1800 / CS1803 / CS1804

A straightforward replacement chain for EGO CS1800, CS1803, and CS1804

This 18-inch chainsaw chain replacement is intended for the EGO CS1800, CS1803, and CS1804 56V chainsaw. The package includes 2 pcs 18-inch chain; guide bar not included.

If you use one of those EGO 18-inch saws, this type of replacement is the right place to start—but it’s still worth confirming the chain specs on your current bar or original chain before ordering.

Will this chain fit your saw?

This chain is listed to fit these models:

• EGO CS1800
• EGO CS1803
• EGO CS1804

To confirm fitment, match all of the following:

• Bar length: 18”
• Pitch
• Gauge
• Drive-link count

Bar length alone is not enough to guarantee a correct fit. Many chainsaws use an 18-inch bar, but the chain still has to match the exact pitch, gauge, and number of drive links required by your bar and sprocket setup.

Here’s the easiest way to verify:

• Check the stamping or printed markings on the guide bar. Most bars list chain size details directly on the bar.
• Compare with the chain currently installed on your saw, if it is the original size.
• Look in your EGO saw manual for the chain specification for your exact model.

For this product page, the compatible saws named in the original listing are:

• 18″ Chainsaw Chain Replacement for EGO CS1800 / CS1803 / CS1804 56V Chainsaw

What’s included:

• 2Pcs 18-Inch Chain
• Guide bar not included

If your saw is one of the listed EGO models but has been fitted with a different bar than stock, always verify the chain details on the bar before purchase. That is especially important if the original bar has been replaced at some point.

Replacing the chain

Before replacing the chain, remove the battery and make sure the saw cannot start accidentally. Wear gloves when handling the chain, since even a dull chain can cut skin.

1. Remove the battery and let the saw cool completely.
2. Loosen the side cover and remove the bar-and-chain cover according to your saw’s normal service procedure.
3. Lift the old chain off the bar and drive sprocket, then clean sawdust and oil buildup from the bar groove and cover area.
4. Install the new 18-inch chain onto the sprocket and around the guide bar, making sure the cutter direction is correct.
5. Reinstall the side cover, then adjust chain tension until the chain sits snugly on the bar but can still be pulled around by hand with a gloved hand.
6. Reinsert the battery, add bar-and-chain oil if needed, and run the saw briefly to recheck tension.

A new chain will usually stretch slightly during initial use, so check tension again after the first few cuts.

Keeping it sharp

A sharp chain cuts faster, puts less strain on the motor, and helps the EGO saw oil and clear chips properly. A dull chain often makes fine dust instead of larger chips and requires extra pressure to cut.

A few practical habits help:

• Touch up the cutters regularly instead of waiting until the chain is very dull.
• Keep the chain properly tensioned; a loose chain can derail, while an over-tight chain wears the bar and drive components faster.
• Make sure the chain is getting enough bar-and-chain oil, and avoid cutting into dirt, which dulls cutters quickly.

If the saw starts pulling to one side during a cut, the chain may be unevenly sharpened or the bar may have wear that should be inspected.

FAQ

Does this include the bar too?

No. The package includes 2Pcs 18-Inch Chain, and the guide bar is not included.

Will this fit any EGO 18-inch chainsaw?

Not automatically. It is listed for EGO CS1800, CS1803, and CS1804, but you should still confirm the bar length, pitch, gauge, and drive-link count on your saw before ordering.