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Model # RY34427

Internet # 100661219

Store SKU # 170659

4-Cycle 30cc Attachment Capable Curved Shaft Gas Trimmer

This item has been discontinued.
The Home Depot no longer carries this specific product.

$169.00 /each




Model # RY34427

Internet # 100661219

Store SKU # 170659

Ryobi 4-Cycle trimmers provide the convenience of no oil/gas mixing. These truly innovative trimmers are big on power, but light on weight, maintenance, emissions and noise. Ryobi 4-Cycle trimmers are the lightest 4-Cycle trimmers on the market and come with a best-in-class, 3-year warranty.

California residents: see  Proposition 65 information

  • No mixing of gas and oil
  • Attachment capable: accepts Ryobi expand-it attachments and other universal gas attachments to save time, money, and space
  • Curved shaft for lighter handling
  • REEL-EASY bump-feed string head with dual 0.095 in. line for fast and easy reloading
  • 17 in. cutting width
  • Increased power
  • 10.7 lbs.
  • Home Depot Protection Plan:

    Home Depot Protection Plan

Info & Guides

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Assembled Depth (in.) 
9.8 in 
Assembled Height (in.) 
37.4 in 
Assembled Width (in.) 
9.5 in 
Line style size 
Maximum cutting path diameter (in.) 
Recommended line diameter (in.) 
Shaft length (in.) 
Assembly Required 
Attachment capable 
CA (CARB) Compliant 
CARB Compliant 
Engine Cycles 
4 Cycle 
Engine Displacement (cc) 
Engine Type 
4 Cycle 
Fuel Type 
Fuel tank capacity (oz.) 
Head Type 
Wind without Assembly 
Line Advance System 
Metal blade conversion kit 
Multiple heads included 
No-tool line replacement 
Number of Trim Lines 
Product Weight (lb.) 
10.7 lb 
Replaceable Head 
Shaft shape 
Shaft type 
Shoulder harness/strap 
Start Type 
Trimmer Line Type 
Trimmer Type 
Consumer Gas String 
Warranty / Certifications
Manufacturer Warranty 
3 Year 


Rated 2.6 out of 5 by 188 reviewers.
Rated 4.0 out of 5.0 by Great product. Do not use Eco-Oil that came with. Hello, This trimmer is great. I have the straight shaft attachment and the curved as well as many attachments (trimmer, tiller) I bought this, and it came with two premeasured Oil bottles of this Oil that is "biodegradable" and "non toxic". It was very thin. Do not use this oil. I returned one after the engine seized. I could still pull the cord but had to work on it a bit. I think this Oil is too thin and doesn't provide enough protection. Oil was spitting out the exhaust! The next one I filled it once with that Oil and the same thing happened. I changed the Oil to regular 10x30 high end oil and it is great! Great product. Not good Oil! August 12, 2009
Rated 1.0 out of 5.0 by I wish I bought one of these a few years ago. Used it one season until an intake valve bent (how the heck does that happen? - it has a governor to limit speed!). Had to pay for repair of course. Also replaced fuel lines that hardened and cracked. Of course, now, I can't get it to start even if I dislocate my shoulder and tear the tendons in my elbow trying. Yes, I store it dry and always use fresh fuel. So much for that idea. October 22, 2010
Rated 5.0 out of 5.0 by Very impressed! I was amazed at the quietness of this model compared to my old 4 cycle trimmer! I've used it 4 times as of this review and love the ease of starting and the light weight of it. I prefer the manual choke on the Ryobi as opposed to some automatic one on others, I think it is just something else to fail! It also has plenty of power for trimming and I'm not even using full throttle! I think this trimmer was the best choice for an entry level 4 cycle model, I don't see a need to spend more! September 29, 2015
Rated 4.0 out of 5.0 by Powerful, Quiet, Clean Running, Fits All Attachments This 4 stroke weed trimmer offering from Ryobi meets my expectations for an attachment capable piece of lawn equipment. Not having to mix oil and fuel makes for easy refueling at any point during yard work. Use the same fuel canister you use for your lawnmower, snowblower, etc. The starting instructions are simple to follow. Fill the crank case with the included oil and funnel, fill with regular gas, prime the engine, choke per the instructions on the choke lever, and pull the starter handle. This engine starts very similar to the 2 Stroke Ryobi powerhead already own, Only differing in that the choke on the 4 stroke model is not automatic. Using the choke lever is easy to figure out, it's clearly labeled and I like the way it is set up. This engine has a low gurgle to it's idle and throttle up. Quite different from the loud whine of a 2 stroke engine. It's pleasant to hear running and much nicer to have near you when cutting a lot of weeds. Using any of the numerous attachments involves loosening the large attachment knob on the shaft, pushing in the locking pin and removing the current attachment for the new one. Snap the new attachment into place and re-tightening the knob. You're ready to go that fast. They lock in firmly and there is no slippage between the connections. I have almost all of the Ryobi attachments for this tool already and they all work perfectly with this powerhead. There is no lack in power while using any of them. Being a 4 stroke, you have plentiful power on the lower end of the throttle, with lots of torque for hitting heavy brush and weeds. The included curved weed trimmer attachment is built well and works smoothly. I would have liked to see a larger guard on the trimmer head. This small one works, but allows too much debris to go flying. My older attachment has a guard more than twice this size. The product description says that there are two trimmer heads included. Well, not on the one I got. Only one trimmer head came with this machine. So I called Ryobi support as the directions said I should and after 15 minutes waiting on hold a very curt employee interrupted me while I was explaining the issue and told me that a second trimmer head is not included and that's that as far as he's concerned. I was not impressed. If this is how they deal with minor issues, I'm not looking forward to needing to use the warranty on this if I have to. Other than Ryobi's customer service line being less than helpful, the machine itself is a quality item. It starts easily, runs well and has plenty of power to complete any task I gave it. The drawbacks were the second trimmer head not being included in the box per the product description and I would have liked to see a nice shoulder strap included at this price point. I have a large lot, with the house, two outbuildings, numerous gardens and beds. It usually takes a half tank in the 2 stroke model to cut all the weeds. With this 4 stroke model it took less than half that amount of fuel. March 23, 2013
Rated 1.0 out of 5.0 by 3 words: "Terrible, Terrible, Terrible!!" This unit is HIGHLY susceptible to hydraulic lock, which means that the motor will lock-up (after the unit has been sitting idle in a garage), not letting you pull the cord, or start it. After returning 2 units (each after using just ONE time) - I learned that this unit must be stored in a HORIZONTAL position to avoid this from happening. Since I don't have the room in my garage to store it like this - without re-laying-out storage for every other broom, shovel, rake, etc. which I already have stored VERTICALLY in my garage - this is a non-starter for me (no pun intended). The other big issue is that if you run the unit with the engine turned (or upside down) as I sometimes do during edging - it will burn oil and smoke like CRAZY July 4, 2015
Rated 1.0 out of 5.0 by Works great until it breaks This trimmer worked great for me for (almost) two years, starting on the first pull and running like a champ. That is, until the plastic camshaft melted and stopped the engine in its tracks - permanently. I changed the oil and adjusted the valves according to the maintenance schedule, but the cheap construction of the device meant it was only a matter of time. If they are too cheap to put an air filter on it, you know it isn't built to last; I replaced it with a 2-stroke Toro and am much happier now. September 2, 2013
Rated 1.0 out of 5.0 by Beware Defectives Trimmer 1.- Great Value Price! 2.- Good/nice construction 3.- The idea is genial 4 cycle oil gas trimmer 4.- The start up Cord is like stuck and can't loose completely 5.- I waste 1 hour of my time to start up this trimmer 6.- after runs I shut off more than 3 times to refill the gas and re-starts super easily with the first pull 7.- If you are woman or average guy I don't recommend buy this trimmer is not easy to start up, a few days ago I tried to start up again this junk and was the same problem (stuck cordon) immediately returned this trimmer back to my local home depot store. Finally on my opinion this trimmer is great, lots of power, good construction but the problem is the cord I tested more than 1 and all of them had the same problem Ryobi should be fix this problem asap October 30, 2015
Rated 1.0 out of 5.0 by don't waste your time I didn't want a 2 cycle. liked the idea of 4 cycle- no mixing of gas. assembling was easy. however, tool was was load and needed full throttle in order to begin to trim grass. string is too wide, it would mostly push over grass and weeds before cutting. string feed is very poor design. I returned to store. I purchased another black and decker battery operated trimmer, 20 v litium iion, way way better in all regards. I recommend not buying the ryobi. their engineers/designers need to refine this product. September 22, 2015
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