AutoCut® Line Head

AutoCut® 36-2AutoCut® 46-2AutoCut® 56-2

C 4-2


C 5-2



C 25-2








Mowing head that uses nylon line. Advances cutting line when “tapped” against the ground. AutoCut® C versions reload line by simply inserting line into eyelets and twisting bump knob.


Important Information
WARNING! Improper use of any power tool may cause serious or fatal injury. Read, understand and follow carefully the operating and safety instructions in your instruction manual before using such products.

STIHL products sold through U.S. STIHL Dealers are for distribution in the United States only.
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AutoCut® Line Head is rated 2.5 out of 5 by 77.
Rated 1 out of 5 by from Line breaks too easily! Though I consider Stihl products to be the best of their kind,this trimmer head is, by far, the worst I've ever used, and that's saying a lot -- I'm 70 years old and have had lots of trimmers through the years. The line frequently breaks right at the head, requiring the head to be taken apart and the line re-threaded. This happens every few minutes, which means that I spend 30 minutes doing a 10 minute job. I will be replacing the head in the very near future.
Date published: 2017-03-18
Rated 5 out of 5 by from I use the auto cut 25-2 Best head out there. Take time winding the line on the spool use the .095 round line from stihl if you use the professional trimmers. Roll one half and then the other. I never have any problem in grass or weeds with it bumping out. Now if you hit against fences or tree stumps it may cause a problem. But in grass and green weeds, this head on my fs90r and my fs130r will stand up until I run out of string. It isn't real hard to spool either. (I suggest any one having problems to look at the Videos or get the fix cut model. They are real easy such as the duro cut models.) I bought a couple of extra heads to switch out so I don't have to stop. I'd rather have these heads because they are durable and they don't get tangled up like models with both lines are wound up together and become welded or knotted. They occasionally have problems but it usually user error to much string or not taking care to put it on evenly.Great product!!!
Date published: 2017-02-02
Rated 1 out of 5 by from I believe in your product. Your chainsaws are awesome. So based on this I bought a fs38 trimmer from the get go the autofeed head was unreliable. It . The trimmer head is poorly designed. It will not advance line no matter how many times you bump it. I went back to my John deer/ stihl dealer and asked about a better head and was informed that this was the only head made for it. Unacceptable from a company of your stature. The trimmer itself is great.
Date published: 2016-09-25
Rated 1 out of 5 by from Poor line feeding I have needed 3 different heads in my 1.5 years of ownership and I'm finally giving up on the autocut. A brand new spool works great until more line is needed. I am only rarely able to get the bump-and-feed to work and I spend more time respooling the line than trimming. Each of my 3 heads have had problems with feeding and fusing of the line. I thought it was me until I saw the other reviews on this product.Stihl, your customers are trying to tell you something.
Date published: 2016-09-15
Rated 1 out of 5 by from Fragile I purcchased a new stihll brushcutter with one of these heads.Only use trimmer for roughly 2 hours a month but after 2 months I have noticed a lot of wear and tear on the head from using the tap and go feature.I reckon you would be lucky to get a full year out of a head based on this.
Date published: 2016-09-03
Rated 1 out of 5 by from This trimmer head does show any evidence of intelligent design There has been nothing done to this design in 35 years other than to stack two spools on top of each other which just compounds the difficulty of rewinding, unwinding the line in a garage let alone in the field. The problem is the same as it has always been. There is no level wind mechanism to maintain the line in anything other than a rat's nest ( yet fishing reels manufacturers figured this problem our in the 1960's). Additionally, the beveled edges on the spool outlets consist of an material incompatible with plastic line causing pre-mature breakage at the point of projection, thus making it impossible for the bump and release spring mechanism to work even if the line is behaving on the spools ( the pinch points need to be inside the spool and of a softer material to allow for tensioning that occurs when heavier load is applied by thick or heavy grass or rocks etc. Whoever signed off on the design review and the QA of this product should be embarrassed. So now I have to go buy another line head adding to an already inflated cost. I am not convinced the supposed reliability is going to worth the pain and headache of the great Stihl.
Date published: 2016-09-02
Rated 1 out of 5 by from have to open the spool to get more line out, bump doesn't work Terrible product, the spool has to be opened everytime to let more line out. You can't wind line on top of each other and expect the line to come out.
Date published: 2016-08-28
Rated 3 out of 5 by from Reliable but... I have to throw my hat in the ring with everyone else. I've purchased line trimmers before and I've not had the problems I've had with this particular line head. I absolutely hate trimming time because of it!
Date published: 2016-08-25
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