MM 55 C-E STIHL YARD BOSS® - $379.95 DSRP
The same powerful multi-tasking tool as the MM 55, but enhanced with STIHL Easy2Start™ technology for nearly effortless starting.
There are not too many things a STIHL YARD BOSS® can't handle. One of two great multi-task yard care systems, the lightweight and powerful MM 55 C-E STIHL HomeScaper Series™ YARD BOSS® offers the same versatility as the MM 55 but features the Easy2Start™ system. With a pick tine cultivator set included as standard, this system is also available with an optional weight kit — helping the tines more ...Read More

Model Features
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Built in the USA
Indicates products that are built in the United States from domestic and foreign parts and components. -
Compact Design
The folding handles and front hand grip make the YARD BOSS® compact and easy to transport and store.
See it in action! -
STIHL Easy2Start™
The STIHL Easy2Start™ system makes starting STIHL outdoor power tools almost effortless, eliminating the need for a strong pull of the starting cord. This advanced starting system is designed to make starting STIHL products fast and easy. The specific system may vary by model, but in each case, a quick pull overcomes the engine’s compression to minimize the strength and effort required to start. Available on selected products. -
Multi-Tasking Tool
Switch between any of the eight YARD BOSS® optional attachments quickly.
See it in action! -
Multi-Function Control Handle
Having easy access to all of the controls on one comfortable handle makes it easy to complete tasks so the operator’s hand never has to leave the handle. -
Protected Spark Plug Cover
The spark plug cap is integrated in the equipment’s housing, so the spark plug remains protected while still being easy to change. -
Purge Pump Primer
A small fuel pump delivers fuel to the carburetor when pushed, reducing the number of starting strokes required following extended breaks in operation.
Important Information
Note: STIHL recommends use of fuel with no more than 10% Ethanol content. Using fuel with greater than 10% Ethanol content may cause damage to your equipment and may void your STIHL warranty. Learn More…
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.
Click to view the STIHL Limited Warranty Time Periods
STIHL products sold through U.S. STIHL Dealers are for distribution in the United States only.
We Also Suggest
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FS-MM Trimmer Attachment
Now you can turn your STIHL YARD BOSS® into a quality wheeled trimmer, adding ease and convenience to your trimming tasks – all for much less than the cost of a dedicated trimmer mower. The STIHL FS-MM trimmer attachment features a dependable STIHL AutoCut® 25-2 trimmer head for precision cutting tasks. To advance the line, just tap the trimmer head against the ground. Need to change the trimmer head? The FS-MM trimmer head is designed to be removed and replaced with a wide range of STIHL trimmer heads, including STIHL SuperCut™, FixCut™, DuroCut and more!
Note: Must be used with wheel kit. -
HP Ultra 2-Cycle Engine Oil
HP Ultra is a fully synthetic 2-cycle engine oil specially suited for high performance chainsaws and power tools. This oil has outstanding engine cleaning characteristics, plus “ultra” superior lubricating qualities in comparison to other 2-cycle engine oils. It is ideal for use in STIHL 4-MIX® engines. This oil is biodegradable, degrading by 80% in 21 days.•2.6 oz. bottle makes 1 gallon mix
•5.2 oz. bottle makes 2 gallon mix
•6.4 oz. bottle makes 2 1/2 gallon mix
•12.8 oz. bottle makes 5 gallon mix
STIHL recommends a mix of 50:1 high-quality 89 octane or higher unleaded gasoline to STIHL engine oil. This same mix ratio should be used during break-in. -
KW-MM STIHL PowerSweep™ Attachment
Heavy-duty rubber flaps clean up compacted dirt on roads and sidewalks, moves pebbles and sand from grassy turf, and even removes water and light snow from hard surfaces.
Note: This attachment must be used with large deflector and extensions. -
FC-MM Bed Edger Attachment
Used to cut a defined or distinct edge to separate the grass lawn from the cultivated soil in a planting area.
For Your Safety
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GSX Glasses
STIHL GSX Protective Glasses feature adjustable temples allowing a customized fit and a soft nose pad that offers comfort that lasts all day. Polycarbonate glasses with impact-resistant lens provide 99% UV protection. -
Work Gloves
Double palm layer and finger tips provide long life. Breathable polyester back and knit wrist provide snug fit. One size fits most. -
STIHL® Pro Mark™ Hearing Protector
Padded stainless steel spring wire headband maintains constant pressure. Easy to adjust. Noise Reduction Rating (NRR): 29. Meets ANSI S3.19-1974 standard.
Colors available: Camouflage, Orange and Grey
MM 55 C-E STIHL YARD BOSS® is rated out of 5 by 47.
Rated 5 out of 5 by Greengro53 from Lite weight, easy to control, easy to fuel and start, I ground up wet leafs for the garden and it worked great, tilled up compose pile for the garden and it was a big time saver. Then tilled up the raised garden beds.And till an old dirt pile to make it easier to hand shovelAlso purchased the wheel kit, it also was a time and back saver.
Date published: 2018-04-04
Rated 4 out of 5 by captcc from Excellent Product My only complaint is that I wish it came standard with a bit more weight to enhance aeration and cultivation work.Aside from that minor gripe, the product has save me hours of labor and wear-and-tear on my back! Highly recommend.
Date published: 2017-07-17
Rated 5 out of 5 by bear1969 from this is a well built machine I have two chain saws, one pole saw, two weed eaters, one leaf blower and the mini tiller. I am very happy with all of my Stihl products. Bruce at porters in Elwood Kansas takes excellent care of my Stihl products. I highly recommend him.
Date published: 2017-07-02
Rated 5 out of 5 by JJ22 from Very easy to use I got this device to help rework my flower beds. I am amazed how well it preformed. It turns regular dirt into a fine quality potting soil.
Date published: 2017-06-21
Rated 3 out of 5 by Allen007 from Work great in flower bed but not heavy enough for the garden, needs bigger times. For light work it does wonderful. It has its limitations.
Date published: 2017-06-14
Rated 5 out of 5 by HogHead from Great little tiller This thing is handier than a pocket on a shirt, digs great and the size of the engine is perfect.
Date published: 2017-06-09
Rated 1 out of 5 by Arklonghorn from Not as Expected I purchased this product with the wheel attachment hoping to use it around my garden to remove some weeds. It may work great on a single weed, but it doesn't work very good on a patch of weeds. The weeds wrap around the tines and you spend more time pulling weeds from the tines. I used it for 30 minutes and I was not impressed. The last time I went to the garden, I took my wheel hoe and a regular hoe and I was able to get more done with them in less time. I also bought the string trimmer attachment, but I haven't even connected it yet as I may try to take the product back. I have used Stihl chainsaws and string trimmers in the past and I have never been disappointed in a product - until now.
Date published: 2017-05-24
Rated 5 out of 5 by eurnwulf from a beast of a machine love this tool its a beast from digging holes to making flower beds this is the machine. can't wait to try the other adapters if they work half as well its money well spent.
Date published: 2017-05-15