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.

2PC 18 Inch Chainsaw Chain

Name: 2PC 18 Inch Chainsaw Chain
Brand: OPULADUO
SKU: B0DBLSFN6W
Price: 23.98 USD
Availability: InStock
Rating: 4.1 (1 reviews)

Overview

Designed as a drop-in replacement for BLACK+DECKER CS1518 models, this chain restores your saw’s cutting ability to like-new condition. Ships as a 2-piece set, giving you a ready spare. Running a dull chain forces the motor to work harder and shortens the life of your bar, making periodic replacement essential.

Key specifications

Bar length: 18”
Quantity: 2 chains per pack

Compatibility

This replacement chain works with BLACK+DECKER CS1518. Double-check your model number against the listing to ensure a correct match before installation.

Installation notes

Begin by shutting off the saw and disconnecting the power source. Loosen the bar-mounting fasteners and remove the side cover to access the chain. Slide the worn chain off, seat the replacement around the sprocket and into the bar groove with cutters pointing in the direction of rotation. Tighten the tensioning screw until there is slight play but no droop, then secure the cover.

Common questions

Q: Will this 2-pack of 18-inch chains fit my BLACK+DECKER CS1518 without changing the bar or sprocket?

Yes, these chains are made to fit the BLACK+DECKER CS1518 with its standard 18-inch bar, so you should not need to change the bar or drive sprocket if your saw is stock. It’s still a good idea to compare the chain on your saw to the replacement before installation and confirm the bar is the original 18-inch setup.

Q: I have a BLACK+DECKER CS1518 and the old chain stretched out. How do I properly install and tension one of these replacement chains?

When installing, make sure the cutting teeth on the top of the bar face forward, then seat the chain fully into the bar groove and around the drive sprocket before tightening the side cover. Adjust tension so the chain sits snug against the bar but can still be pulled around by hand with gloves; after a few minutes of cutting, recheck tension because a new chain can settle in.

Q: Since this comes with 2 chains for my 18-inch BLACK+DECKER CS1518, what maintenance should I do to help them last longer?

Keep the chain properly oiled at all times and clean sawdust from the bar groove and oil ports regularly, since poor lubrication is one of the fastest ways to wear out a chain. It also helps to rotate between the two chains, touch up the cutters with the correct file size as they dull, and inspect the bar for burrs or uneven wear each time you swap chains.

Before you buy — how to verify fitment

Find the bar stamp. Look on the side of your current guide bar for the pitch, gauge, and drive-link count.
Match all three numbers. Pitch (3/8 LP), gauge (.050"), and drive links (62DL) must all match.
Check bar length. Measure cutting length from the tip to where the bar enters the saw body — this should match 18".
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.