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" Chainsaw Chain

Name: 2PC 18" Chainsaw Chain
Brand: OPULADUO
SKU: B0F82V79VR
Price: 19.98 USD
Availability: InStock
Rating: 4.6 (1 reviews)

Overview

This chain is manufactured to OEM specs for SKIL CS1800C-15 saws, providing dependable cutting performance as an aftermarket alternative. Ships as a 2-piece set, giving you a ready spare. Replacing a stretched or damaged chain restores both cutting speed and operator safety.

Key specifications

Bar length: 18”
Quantity: 2 chains per pack

Compatibility

Fits SKIL CS1800C-15 as a direct replacement for the factory chain. Check your owner’s manual or the existing chain’s markings to verify pitch, gauge, and drive link count before ordering.

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 2-pack 18” chainsaw chain fit my SKIL CS1800C-15, or do I need to match anything besides the bar length?

Yes, this chain is intended for the SKIL CS1800C-15 with an 18-inch bar, so it should be the correct fit for that saw. It’s still smart to compare the markings on your original chain or bar to confirm the chain specs match exactly, since bar length alone doesn’t verify pitch, gauge, and drive link count.

Q: Since this comes with 2 chains, how often should I swap them out on my SKIL CS1800C-15 during regular use?

A good practice is to rotate between the two chains whenever one starts to dull, stretches noticeably, or after a sharpening cycle, especially if you cut often. Alternating chains can help reduce wear on the bar and sprocket, and it gives you a ready spare so the saw isn’t down when one chain needs service.

Q: Do I need to do anything special when installing this 18” replacement chain on the SKIL CS1800C-15?

Make sure the cutters are facing the correct direction on the top of the bar before tightening everything down, because it’s easy to install a chain backward. After installation, set the chain tension so it sits snug against the bar but still pulls around by hand, then recheck tension after the first few minutes of cutting since a new chain can seat in and loosen slightly.

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 (.043"), 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.