High-Quality 25-Inch Replacement Chainsaw Chain for Stihl Models – Ensure Compatibility with 3/8" .050" Guide Bars

This 25-inch replacement chainsaw chain is intended for select Stihl saws using a 3/8-inch pitch, .050-inch gauge, and 84 drive links. It is listed as compatible with Stihl 036, 044, MS310, and MS311, and matches Stihl chain references 33RS-84 / 33RS 84 when your guide bar uses the same chain size.

Will this chain fit your saw?

The most important thing to know is that chains fit the bar and sprocket setup, not just the saw name. Even if you own one of the listed Stihl models, you should confirm all chain specs before ordering.

Check these four points:

• Pitch: 3/8”
• Gauge: .050”
• Drive link count: 84 DL
• Bar length: this product is sold as a 25-inch replacement chain

This chain is listed for:

• Stihl 036
• Stihl 044
• Stihl MS310
• Stihl MS311
• Stihl 33RS-84 / 33RS 84

Before purchase, verify the information stamped on your guide bar. Most bars show the required pitch, gauge, and drive-link count. Your current chain may also be marked, and the owner’s manual may list the correct chain specification.

A quick note on fitment: the source listing says this is a 25-inch replacement chainsaw chain, but the known specs provided separately include bar length 8”. Because chain fit depends on the exact bar setup, it’s best to rely on the bar markings and the full chain spec match: 3/8” pitch, .050” gauge, 84 drive links. If any one of those measurements differs, this chain is not the correct fit.

The package described in the original listing is:

• 25″ Replacement Chainsaw Chain for Stihl 33RS-84 / 33RS 84, 3/8″ .050″ Gauge 84 DL (2Pcs)

Replacing the chain

Replace your chain carefully and only with the saw turned off.

1. Shut the saw off and disconnect power source. For a gas saw, make sure the engine is off and cool before working near the clutch cover and bar.
2. Loosen and remove the side cover. Back off the bar nuts, remove the clutch/side cover, and release chain tension.
3. Remove the old chain. Lift the chain off the drive sprocket and guide bar, then inspect the bar groove and sprocket area for packed debris.
4. Install the new chain in the correct direction. Set the chain around the drive sprocket and into the guide bar groove, making sure the cutter edges on the top of the bar face forward.
5. Set chain tension. Refit the side cover, then tighten the adjuster until the chain sits snugly against the bar but can still be pulled by hand along the bar.
6. Final check. Tighten the bar nuts securely, then rotate the chain by hand with gloves on to confirm smooth movement before starting the saw.

Keeping it sharp

A sharp chain cuts faster, straighter, and with less strain on the saw.

• Touch up the cutters regularly. Light, frequent sharpening is easier than restoring a badly dulled chain.
• Maintain proper chain tension. A loose chain can derail; an overtight chain causes extra wear on the bar and sprocket.
• Keep the bar and oiling system clean. Good lubrication helps reduce heat and extends chain life.

FAQ

Does this chain fit every Stihl 036, 044, MS310, or MS311?
Not automatically. It fits only if your saw’s bar setup requires 3/8” pitch, .050” gauge, and 84 drive links.

How do I verify compatibility with Stihl 33RS-84 / 33RS 84?
Match the chain reference and confirm your guide bar markings. The key measurements are 3/8” pitch, .050” gauge, and 84 DL, along with the listed 25-inch application.