For WEN 4017, 40417, 40417BT Chain Saw and More – 3/8" – .050" – 56 Drive Links

Replacement chain fitment for WEN 4017, 40417, and 40417BT

This replacement chainsaw chain is specifically designed for WEN 4017, 40417, and 40417BT chain saws. It uses an 8-inch setup with a 3/8” pitch, .050” gauge, and 56 drive links, giving you the size combination you need for proper fitment on these models.

Built from high-quality materials for durability and long-lasting performance, this chain is intended to provide a smooth and efficient cutting experience. It is also designed to be easy to install and replace, making it a practical option when your current chain is worn, damaged, or no longer cutting cleanly.

Will this chain fit your saw?

To confirm fitment, match all four chain specifications on your current setup:

• Bar length: 8”
• Pitch: 3/8”
• Gauge: .050”
• Drive links: 56

For chain fitment, all of these measurements matter. Even if your saw is the correct brand or the bar is the correct length, a mismatch in pitch, gauge, or drive-link count can prevent proper operation or safe installation.

This chain is specifically described as fitting these WEN chain saw models:

• WEN 4017
• WEN 40417
• WEN 40417BT

A quick way to verify is to inspect the markings on the guide bar or compare the specs from your existing chain. The most important detail many buyers overlook is the drive-link count. This replacement uses 56 drive links, so be sure your old chain matches that count exactly.

If your saw is one of the compatible WEN models listed above and your current chain specs are 3/8” pitch, .050” gauge, and 56 drive links on an 8” bar, this is the correct replacement format. If your markings are worn off or unclear, verify your saw’s specifications before purchasing to ensure compatibility.

Replacing the chain

Replacing the chain is straightforward, but take a few basic safety precautions:

1. Turn the saw off and make sure it cannot start accidentally. Let all moving parts come to a complete stop.
2. Loosen and remove the side cover so you can take the old chain off the bar and drive sprocket.
3. Place the new chain onto the guide bar and around the sprocket, making sure the cutting teeth face the correct direction along the top edge of the bar.
4. Reinstall the bar and side cover, then adjust chain tension so the chain sits snugly in the bar groove while still moving freely by hand.
5. Tighten the cover securely and recheck tension before use.
6. After a short test run, stop the saw and inspect chain tension again, since a new chain may need a slight readjustment.

Always refer to your saw’s manual for the exact chain-tensioning procedure for your WEN model.

Keeping it sharp

A good-fitting chain performs best when it is kept sharp and properly maintained. A few habits make a big difference:

• Avoid cutting into dirt, rocks, or other debris, which can dull the cutters very quickly.
• Check chain tension regularly, especially during the first few uses after installation.
• If cutting performance drops and the saw starts producing fine dust instead of chips, it is usually time to sharpen or replace the chain.

Routine maintenance helps preserve the smooth and efficient cutting performance this chain is designed to provide.

FAQ

Will this fit every 8-inch chainsaw?
No. An 8-inch bar alone does not confirm fitment. Your saw must also use a 3/8” pitch, .050” gauge, and 56-drive-link chain.

Is this chain only for WEN 4017, 40417, and 40417BT?
It is specifically designed for WEN 4017, 40417, and 40417BT chain saws. As always, verify the specifications of your chain saw before purchasing to ensure compatibility.