Overview
A worn clutch drum and sprocket kit leads to sloppy chain tracking and increased vibration. This replacement unit is manufactured to OEM specifications, giving you dependable engagement and smooth power transfer without the dealer markup. It is one of those maintenance items worth keeping on the shelf so you are not stuck mid-project with a failing saw.
Key specifications
- Pitch: .325”
- Teeth: 7T
- Quantity: 3 pieces
- Material: hardened steel
- Type: aftermarket replacement
Compatibility
Built to fit Stihl 024 and other models sharing the same drivetrain layout. Always confirm your specific model and year against the compatibility list, because sprocket dimensions can differ even between closely related saws.
Installation notes
Remove the clutch cover, bar, and chain. Lock the piston with a stop tool and unthread the clutch (left-hand thread on most saws). Swap the old drum and sprocket for the new kit, making sure the needle bearing is seated properly. Reinstall the clutch, cover, bar, and chain. Adjust chain tension and let the saw idle briefly to confirm smooth sprocket rotation.
Common questions
Q: Will this 1121 007 1001 .325” 7T clutch drum sprocket kit fit my Stihl 024, or is it only for certain versions?
Yes, this kit is listed to fit the Stihl 024 and uses a .325” pitch, 7-tooth drum setup. You’ll still want to confirm your saw is currently set up for .325” chain, since fitment also depends on matching the drum pitch to your bar and chain.
Q: Can I use this 7T .325” clutch drum sprocket kit on my Stihl 024 if my saw currently has a different chain pitch?
Only if you also change the bar and chain to match the .325” pitch of this drum. The sprocket, chain, and bar nose all need to be on the same pitch, or the chain will not run correctly and can wear the drive system quickly.
Q: What should I check when installing this clutch drum sprocket kit on a Stihl 024?
Inspect the clutch drum bearing and the worm gear area for wear, and apply a light coat of grease to the needle bearing during installation. It’s also a good time to check chain alignment and replace a badly worn chain, since a hooked or worn sprocket can cause premature wear on new parts.
