Opuladuo 2PC 20 Inch Chainsaw Chain for Remington RM4618 RM4620 / RM5118 / RM5520 Chainsaw

Fitment overview

This Opuladuo 2PC 20 Inch Chainsaw Chain is sold as a 20-inch replacement chain for specific Remington chainsaws: RM4618, RM4620, RM5118, and RM5520. If you own one of those saws and it is set up with its original 20-inch bar and matching chain specifications, this is the intended replacement style.

The package includes 2Pcs 20-Inch Chain, which is helpful if you want a spare ready to go when the first chain needs sharpening or replacement.

Will this chain fit your saw?

The quickest way to check fitment is to confirm all four chain specs on your current setup:

• Bar length: 20”
• Pitch
• Gauge
• Drive-link count

Bar length alone is not enough to guarantee fit. Two 20-inch chains can look similar but still be different if the pitch, gauge, or number of drive links does not match your bar and sprocket setup.

This listing specifically identifies fitment as:

• 20 Inch Chainsaw Replacement Chain for Remington RM4618 RM4620 Chainsaw
• 20” Chainsaw Chain Replacement for Remington RM5118 RM5520 Chainsaw
• 20 in. Replacement Chain for Remington RM4618 RM4620 RM5118 RM5520 Chainsaw

If your saw is one of these models, that is the first sign you are in the right place:

• Remington RM4618
• Remington RM4620
• Remington RM5118
• Remington RM5520

Before ordering, compare the markings on your existing bar or current chain. Most bars have the chain size information stamped or printed near the mounting area. If those markings are worn off, check your owner’s manual or the numbers printed on the old chain packaging if you still have it.

A simple rule: the replacement chain must match the bar length and the exact chain spec required by your saw. If your Remington has been converted to a different bar length or a non-original setup, do not rely on model fitment alone.

Replacing the chain

Use safe chain-handling habits whenever you work on the saw. Gloves are a good idea, even with a dull chain.

1. Turn the saw off completely and disconnect the spark plug wire so the engine cannot start accidentally.
2. Loosen the side cover, back off the chain tension, and remove the old chain from the bar and drive sprocket.
3. Clean out sawdust and oil buildup around the bar groove, sprocket area, and side cover before installing the new chain.
4. Fit the new 20-inch chain around the drive sprocket and along the bar groove, making sure the cutter direction is correct. The cutting edges on the top of the bar should face forward toward the bar nose.
5. Reinstall the side cover and adjust chain tension until the chain sits snugly in the bar groove but can still be pulled by hand around the bar.
6. After tightening the bar nuts, recheck tension again. Run the saw briefly, then stop and inspect tension a second time, since a new chain can settle in quickly.

A chain that is too loose can derail. A chain that is too tight can wear the bar, sprocket, and clutch area faster than normal.

Keeping it sharp

A sharp chain cuts faster, puts less strain on the saw, and is generally safer to use than a dull one.

• Touch up the cutters regularly instead of waiting until the chain is badly dull. If the saw starts making fine dust instead of chips, it is usually time for sharpening.
• Keep chain oil flowing properly. A well-oiled chain runs cooler and helps reduce stretch and premature wear.
• Avoid contact with dirt, rocks, and fencing. Even one brief hit can dull a sharp chain quickly.

Because this package includes two chains, many owners rotate them: run one, sharpen it when needed, and install the second so the saw stays ready for use.

FAQ

Will this fit any 20-inch Remington chainsaw?

No. It is listed for Remington RM4618, RM4620, RM5118, and RM5520. You should still confirm the exact chain specs from your bar or manual before ordering.

Why do I need to check pitch, gauge, and drive-link count if my bar is 20 inches?

Because 20 inches only describes the bar length. The chain also has to match the bar groove size, sprocket type, and overall chain length, which are determined by pitch, gauge, and drive-link count.