MM 55 STIHL YARD BOSS® - $349.95 DSRP
Using a universal power train, this cultivator can transition into other useful tools for around the home or farm.
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! -
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 STIHL YARD BOSS® is rated out of 5 by 56.
Rated 4 out of 5 by KLB311 from Nice Machine We really love this machine overall. My wife has used it more than myself so she should be writing this. We use this Stihl MS 55 for our garden tilling after we've planted. Excellent chewing up the ground making for easy weed pulling. The only issue at all is it is a little bit tiring after about 30 to 40 minutes of work. We use the wheels to help adjust for depth control and they work great. It's also nice when you stop tilling to just let the unit rest on the adjustable wheel stand!
Date published: 2017-05-27
Rated 4 out of 5 by sr12goodman from Nice small machine to get in tight spots. I bought the Yard Boss to compliment my full sized tiller. Both do a good job, sometimes you need a small tool and sometimes you need a bigger tool for a bigger job. I have both now. I'm really pleased so far with the performance of the YB. My only suggestion to Stihl would be a lower price would seal the deal for a solid 5 * rating. Good job though.
Date published: 2017-04-17
Rated 3 out of 5 by JRay from Good and Bad I was tossing around whether to buy a new Kombi-system powerhead or this unit to control my Powersweep attachment. The only reason I considered this unit is the Powersweep unit gets heavy and bulky after using for awhile. I thought the wheel attachment on this would make that task easier. Using the powerbroom or Bristle Brush on a hard surface is fine. As for removing gravel from grass there is no good angle with this unit. You are constantly fighting the unit in an unnatural motion. Trying to get gravel out of grass is much easier with the handheld Kombi-motor. The unit is good and seems to powerful but unfortunately the main reason I bought the unit is a waste for me. I should have bought another Kombi-motor to use with 1of my 8 attachments. Stihl is good quality, unfortunately in my application I have buyers remorse with this unit.
Date published: 2017-04-07
Rated 5 out of 5 by DaveC from Use with ease, Lots of power! I've needed a small tiller living in a residential neighborhood and having a garden.I looked at several different small tillers, and owning a few Stihl saws I knew the reliability so for me it was a fairly easy decision. The greatness of this unit is the variety of attachments for it for home use. I had no trouble in purchasing for this reason and the dealer is not far away. Now in my late 50's this makes my gardening so much easier, Great product!
Date published: 2017-04-03
Rated 5 out of 5 by hammerhead from chews up the dirt nicely would recommend for garden and more,chews up dirt nicely
Date published: 2017-03-30
Rated 4 out of 5 by dvranish from Very satisfied I really like my Yard Boss! The only problem I have had is using Alcohol/Oxygenated gas. It will plug up the carburetor if the unit sits for more than a week. Use non Alcohol/Oxygenated premium fuel with Sea Foam or fuel extender. Modern fuels with no lead cause almost all of the problems.
Date published: 2016-11-01
Rated 2 out of 5 by IBRB from Yard Boss Refuses To Work From the time time that it was new you had to crank it 5 or 6 times before it would stay running. Then it would not take the gas, it would just bog down. After 5 minutes it would run fine but had no power. The dealer would play with the carburetor and say that it was fixed. After it cooled off it was the same old thing. I finally bought a new carburetor and it worked great after that.
Date published: 2016-10-19
Rated 2 out of 5 by Sam123 from Excellent Chain saws but horrible Yard Boss I have purchased two chainsaws of different size for different purposes- one about 10 years ago, and another 2 years ago. They are working amazingly well. Based on my first experience, I bought the Yard Boss. It worked great the first season. It didn't start the second season and I had to pull many times but of no use (just like other customers reported). I had to take it to the dealer for service. and it was fine that season. However, back to starting problems this season again. Changed the spark plug and air filter, but it is of no use. Tired of this, and getting ready for another trip to the service dealer. Once the Yard Boss starts it works very well, but starting is the problem.I have several other machines and NONE of them posed similar problems. I very much support the purchase of Stihl chainsaws but not the Yard Boss.
Date published: 2016-09-26
