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Fits Stihl chainsaws 017 018 021 023 025 MS170 MS180 MS210 MS230 MS250
Replacement part number:
Clutch assembly replaces: 1123 160 2001
Worm gear replaces: 1123 640 7102
3/8 LP pitch spur sprocket replaces: 1123 640 2003, 1123 640 2073
Package list:
1x sprocket
1x clutch
1x sprocket bearing
1x E-clip
1x washer
Great kit for overhaul of your chain drive system at a great cost
James Q.
2025-09-06 12:39:11
everything came in the box. looks very good quality. if you look up a video on how to install it on your chainsaw it really helps if you've never done it before. I put everything on and it worked great. took about 30 minutes to install. highly recommend it. only thing missing from the package might be a little Grease for the bearing.
Brian Cy
2025-09-04 12:07:46
Quick delivery. Quick fix. Worked right out of the box. Will order again when necessary.
Customer
2025-08-24 12:04:45
Arrived promptly and worked well.
Katplus50
2025-07-30 11:15:10
Fit and worked well
roger
2025-07-23 09:17:20
Fit as it should
ranch hand
2025-07-22 18:22:05
I bought this hoping to avoid the high name brand prices. Unfortunately the drum is not round. The deformity is easily seen when I spin it by hand with the side cover off. When the chain is installed, the tension can not be adjusted correctly because it becomes tighter and then looser as the drum turns. The price was good, but the quality is so low that I won’t be able to safely use the saw and will have to order another better part. I’m going to try an Oregon clutch drum. Better price than Stihl, and the quality is excellent. Also, the e-clip included is much to small to be used. I wound up buying one at the Stihl dealer to be able to try to use this drum, and the whole experience has been a waste of time. Now I have to deal with the return process.
Dennis Marsee
2025-07-11 15:20:55
Worked great
SA123
2025-06-25 17:09:43
Product does not fit MS250. Looks like a fine replacement for any saw it does for but wrong number of teeth on gear and too large oil work gear for the 250.
Alan G.
2025-06-21 15:34:25
Works well, fits well.
John S.
2025-06-18 16:38:54
Exact fit and function
TM
2025-03-19 10:21:43
It’s fits perfectly
Fred S.
2025-01-03 15:03:03
Perfect fit
Stewart Calder
2024-12-05 18:01:43
Excellent product, everything fitted and chainsaw in working again.
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