KM 90 R

Distributor Suggested Retail Price DSRP:   $329.95


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This professional-grade KombiMotor features a powerful, low-emission engine and 15% more engine power than the KM 56 RC-E.

A professional unit with a smaller displacement low emissions engine than the KM 110 R and KM 130 R. Choose from 13 easy-to-switch attachments to get the job done right.

Print Spec Sheets
KM 90 R Specifications
DISPLACEMENT 28.4 cc (1.73 cu. in.)
ENGINE POWER 0.95 kW (1.27 bhp)
WEIGHT 4.5 kg (9.9 lbs.)
FUEL CAPACITY 530 cc (18.0 oz.)
Weights shown are for powerheads only.
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.

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    14 optional attachments available 
    Create a custom yard care system with up to 14 optional attachments – trim, edge, cultivate, prune, clean up and more!
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    Reduced-Emission Engine Technology - Caring for Nature
    The STIHL Inc. “Caring for Nature” seal identifies its powered products that are more environmentally conscious, producing zero or low exhaust emissions. STIHL Inc. defines “low exhaust emissions” as being cleaner than EPA and/or CARB exhaust emission standards.

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    Loop Handle
    The loop handle (R) is an adjustable rounded handle mounted on the shaft for support and control. The handle is designed to help control the machine in different positions, ideal for reaching tough spots. The handle is large enough to accommodate a gloved hand comfortably.
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    Quick-Release Coupling
    The quick-release coupling system makes it easy to switch between Kombi attachments. In addition, this feature allows KombiSystem equipment to be dismantled into two parts for easy transport and storage and then re-assembled quickly without tools.

    See it in action!
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    Split Shaft
    A split shaft and special toolless quick-release coupling lets you easily switch between attachments, making the KombiSystem highly versatile as well as easy to transport and store.
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    Anti-Vibration System
    STIHL has a system for minimizing the vibration levels of handheld outdoor power equipment. The STIHL anti-vibration system helps reduce operator fatigue and provides a more comfortable working experience.
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    Electronic Ignition Module
    The electronic ignition provides reliable starting and because it is fully enclosed, it is protected from moisture and debris for longer service life.
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    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.
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    Multi-Function Control Handle
    Having easy access to all of the controls on one comfortable handle help makes it easier to complete tasks so the operator’s hand never has to leave the handle.

Important Information
Note: STIHL engine products with the Caring for Nature logo are cleaner than EPA Standards for exhaust emissions.
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
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    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.

  • No-Spill® Fuel Containers Zoom
    No-Spill® Fuel Containers
    The latest advance in gasoline can technology is here with No-Spill® fuel containers. Featuring a special treated body for low permeation, thumb-button flow controls for easier pouring, and a wide and stable base design to reduce upsets, No-Spill® fuel containers help ensure that the gasoline goes into your tank, not on the ground or into the air. Fill even smaller-sized tanks without spilling – flow stops automatically when the tank becomes full. With 1¼-gallon, 2 ½-gallon and 5-gallon sizes available, you’re sure to find one that fits your needs. Ask your local STIHL Dealer about No-Spill® fuel containers. Don’t settle for anything less.

    Meets California Air Resources Board Phase II requirements for sale or use in California. No-Spill® gasoline cans are tested and certified to ASTM F-852-99 standard specification for portable gasoline containers for consumer use and our diesel and kerosene cans are tested and certified to ASTM F-976-02 standard specification for portable kerosene and diesel containers for consumer use.

For Your Safety
  • GSX Glasses Zoom
    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.
  • STIHL HomeScaper Series™ Gloves Zoom
    STIHL HomeScaper Series™ Gloves
    Innovative keyed thumb stitching for super comfort and gripping ability. Sizes available S, M, L, XL.
  • Tune Up - NRR 25 Zoom
    Tune Up - NRR 25
    Hearing protectors with AM/FM tuner and MP3 capable. 

Are you ready for a STIHL?

Rated 4.9 out of 5 by 78reviewers.
Rated 5 out of 5 by Nice unit with many available attachments I very much like the km90r. starts quick and easy and has plenty of power. My only gripe is the price of the km90r+Line head trimmer attachment over the fs90r when the only real difference that I can see is the split shaft. With that said I would still recommend the km90r to anyone wanting to frequently change out attachments. October 16, 2016
Rated 5 out of 5 by does everything needed great torque ,works quickly, a little heavy although September 15, 2016
Rated 5 out of 5 by Versitile Easy to use and has many attachments. Will be buying more attachments as needed. September 14, 2016
Rated 5 out of 5 by This tool is a small beast Just got the km90 with pole saw and hedge trimmer attachments. Ran this tool for days with no issues the chainsaw attachment was awesome cut thru 6" branches like butter. The hedge trimmer even better for all those pesky smaller branches. Why did I work so hard all these years :). Buy it it's great. August 12, 2016
Rated 5 out of 5 by Awesome Product I have been using STIHL products for over 40 years and they are the best product you will ever buy, whether for home use or commercial use July 26, 2016
Rated 5 out of 5 by The best money that I have ever spent I have always been a big echo fan and owned a lot of echo products. At first I was reluctant to buy the stihl because of the cost. After making the purchase it was money well spent. The quality is far superior from other brands that I've owned. I bought the trimmer and edger attachments along with the tree saw. I was most impressed with the power the straight line edger had. I was able to edge my sidewalk and driveway in half the time. Well worth the money you won't be disappointed. July 25, 2016
Rated 4 out of 5 by Great starter product I've had the 90R for a couple of months for a small yard and I think it is finally getting broken in, starts pretty reliably. Only once have I had trouble with it not starting and I may have flooded it, after it sat for 5 minutes it started right up. I have the edger, trimmer, and broom I use for a dethatcher. Overall happy with the investment May 1, 2016
Rated 5 out of 5 by Best Kombi System period! I have owned the KM 90R for 6 years now and have never had to take it in for maintenance. Unlike other power equipment I've owned, it always starts on the first or second pull and runs until I turn it off or it is out of fuel. I own and maintain 10 acres, 3 of those acres are manicured lawn and beds. I use this tool for several hours each week.I have the string trimmer, edger, and brush cutter that I use with this power head. I am considering buying the 130R to run the pole saw attachment. I don't think it is necessary to run that attachment, I just really want another one. Having two will allow me to share some of the work/fun with my teenage boys. April 15, 2016
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