MM 55 STIHL YARD BOSS®
Using a universal power train, this cultivator can transition into other useful tools for around the home or farm.
All in one. One for all. The MM 55 STIHL YARD BOSS® lets you take charge of your landscape with one versatile, lightweight yard tool. This multi-task machine uses a universal power train that accepts a wide range of high-performance attachments and accessories. Switch from its aggressive “pick” style cultivator to other useful tools, including optional lawn aerator, dethatcher, bed edger, bristle brush broom and more. And when the job is done, its handles fold neatly for easy storage and transport. The STIHL YARD BOSS® is a must-have for space-savvy homeowners.
| MM 55 STIHL YARD BOSS® Specifications | |
| DISPLACEMENT | 27.2 cc (1.66 cu. in.) |
| ENGINE POWER | 0.8 kW (1.07 bhp) |
| WEIGHT | 9.6 kg (21.2 lbs.) |
| TINE SPEED | 200 rpm |
| FUEL CAPACITY | 330 cc (11.2 oz.) |
| CULTIVATING WIDTH | 8.5" |
| PICK TINE DIAMETER | 9.1" |
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.
Model Features
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Multi-Tasking Tool
Switch between any of the seven YARD BOSS® optional attachments quickly. -
Compact Design
The folding handles and front hand grip make the YARD BOSS® compact and easy to transport and store. -
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.
You Will Also Need
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BF-MM Pick Tines Cultivator
The YARD BOSS® pick tines cultivator breaks up weeds and hardened soil in the garden without disturbing nearby plants. The pick-style tines deliver exceptional control while effectively loosening hardened dirt or mulch. This is the standard attachment for the MM 55 and MM 55 C-E STIHL YARD BOSS® lawn care systems, so you can prepare soil for planting and keep your garden areas perfectly maintained – no assembly required.
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FC-MM Bed Edger
Give your yard that professional landscaped look with the YARD BOSS® bed edger attachment. Made for the STIHL YARD BOSS® yard care system, this handy tool is used to cut defined edges to separate the grass lawn from the cultivated soil in a planting area. It’s the perfect way to add definition to your outdoor areas.
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KW-MM STIHL PowerSweep™
Show nature you have the right-of-way with the KW-MM PowerSweep™ attachment for the STIHL YARD BOSS® yard care system. This powerful attachment features heavy-duty rubber flaps, acting like a squeegee on steroids. It cleans up compacted dirt along roads and sidewalks, moves pebbles and sand from grassy turf, and even removes water and light snow from hard flat surfaces.
NOTE: This attachment shown with optional large deflector and extensions.
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HP Ultra 2-Cycle Engine Oil
No matter how you slice it (or trim it or shred it), there’s no better protection for your high performance 2-stroke engine than STIHL HP Ultra. This 2-cycle engine oil has outstanding engine cleaning characteristics, plus “ultra” lubricating qualities that’s superior to other 2-cycle engine oils. This fully synthetic oil is also highly biodegradable, degrading by 80% in 21 days. We’re so confident this oil will protect your engine, we’ll double your STIHL limited warranty* when you use it. It’s that good.
*Double your warranty when you include 6 bottles of STIHL HP Ultra Oil or 6 cans of STIHL MotoMix® Premixed Fuel with your STIHL product purchase. Double limited warranty protection applies to STIHL gasoline-powered products purchased and registered for personal non-income producing, family and household purposes only. Other restrictions apply. See dealer for details.
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For Your Safety
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GSX Glasses
Sleek and smart, STIHL GSX Glasses are an ideal combination of style and protection. Adjustable temples allow a customized fit while a soft nose pad offers comfort that lasts all day. These polycarbonate glasses feature impact-resistant lenses and filter out 99% of harmful UV rays.
Meets ANSI Z87+ Standard
Available lens colors: Smoke Mirror, Blue Mirror
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Work Gloves
These STIHL Work Gloves are ready to go to work for you. Made of premium goat skin leather at the palms and fingertips, they provide durability and softness for a comfortable fit. The high-visibility orange back of the gloves feature breathable knit material for improved airflow. And the knit wrist is elongated for a secure fit under a sleeve, keeping out dirt and other debris.
Materials: Goat skin leather with knit backing
Available sizes: One size fits most
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HP 29 Hearing Protector
Heavy machinery doesn’t have anything interesting to say – block out that noise with our most noise-reducing hearing protection. These top-quality Hearing Protectors feature padded stainless steel spring-wire headbands maintain constant pressure. So no sliding around and letting in unwanted sound waves. They’re also easy to adjust. Set a comfortable fit and get to work in peace.
Meets ANSI S3.19-1974 standard. Noise Reduction Rating (NRR) of 29 dB(A).
Available color: Orange
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STIHL MM 55 YARD BOSS® - Multi Task Gardening Tool - Video
Product Instruction Manual (PDF)
STIHL Limited Warranty
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