Message to Our Customers


Model # RY34426

Internet # 100661219

Store SKU # 170659

4-Cycle 30 cc Attachment Capable Curved Shaft Gas Trimmer

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

$169.00 / each



Model # RY34426

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, three-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 2.7 out of 5 by 156 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 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 Terrible product, plastic camshaft Have had this trimmer for roughly 3 years and used sparingly. Apparently the camshaft is made of plastic and melts. It is not offered as a replacement part and this renders your trimmer head useless. Buyer beware!!! May 29, 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 4.0 out of 5.0 by Very happy Manual recommends a Champion spark plug but had an off brand installed that was not gapped correctly. Starts by 3rd pull. Has lots of power however unlike 2 strokes ones needs to keep power head somewhat level otherwise unit starts burning oil. Nice not being required to mix oil and gas, just gas check oil level and trim, blow, etc. I have recommended to my family and friends. June 9, 2015
Rated 1.0 out of 5.0 by DO NOT BUY RYOBI!!!! After several years it was time for a new trimmer. I have Ryobi tools that have been dependable so I thought I would try this trimmer. BIG MISTAKE!! After the first use I knew I didn't like the feel of it and the spool was a bit to change in and out. I figured I would get use to it. Nope, by the 3rd use the parts needed to be tightened up and on the fourth use it quit on me completely! I followed the directions (my last weed eater lasted over 7 years). This product is terrible, simple as that. I wasted my time and money and now Ryobi basically told me to take it to Home Depot and they might fix it. I will never buy another Ryobi product! June 5, 2015
Rated 4.0 out of 5.0 by Much improved product quality from Ryobi Back in April 2009, after many years of service from a Ryobi 1079r 4 cycle weed whacker, we bought an S430 straight shaft model to replace it. After changing it out twice within the first day due to significant carburettor problems, we went with a different model. A few weeks ago, my wife suggested we get another weed whacker so we can both get the grass dealt with more quickly on our 1 acre property (it seems she doesn't like it that I drive the mower while she uses the weed whacker!). So we chose this S430 curved shaft 4 cycle model from Ryobi. After unpacking it we found some light oil residue on the engine cover and around the oil filler plug which we wiped off with a kitchen towel. After about 5 minutes assembly, it was ready to go. We followed the instructions, filling the engine with the supplied oil. It started on the second pull and I did notice that it takes a little more effort to pull the engine over which could be due to the higher compression of the new motor compared to our other 4 cycle trimmer which is now 4 years old and well used. Since our other model is a straight shaft trimmer, you have to get used to the different cutting position with the curved shaft model otherwise you get grass ejected all over you but this takes only a few cuts to get used to. There were two things I really liked about this particular model: 1) I tend to control the trigger with my right hand and hold the handle with my left, and there was no heating or burning from the engine cover despite me using the trimmer for an hour straight. My other trimmer lightly burns the inside of my right arm with prolonged use which isn't comfortable at all. 2) There is a built in strap hook on the handle. My wife uses a shoulder harness to support the trimmer when she uses it and she was able to clip right onto this unlike our other model which had no harness clip at all. All in all, I really like this Ryobi 430. Its light and maneouverable and I spent most of my time cutting at 1/2 or 3/4 throttle rather than having to run it at full throttle. In an hour of use, it used one tank of gas and started right back up again without airlocking. The manual recommends taking the trimmer to an authorized service center if it will be used over 2,000' above sea level and our home is at 2,300' and it ran like a dream with no problems or carburettor adjustment. The 0.95 cutting line is very robust and cuts through grass, sage brush and small saplings up to 3/8" dia very easily. I haven't had to refill the spool yet, but the redesigned spool looks much simpler to fill without needing to take the bump head apart to get the line back on. After previously criticising the 2009 version of this trimmer motor I can honestly say that Ryobi has done their homework and fixed the earlier reliability problems. The latest version is easy to assemble, easy to start and runs like a dream just like the old Ryobi 1079r that we owned over a decade ago. March 24, 2013
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