Model # RY10521B

Internet #202521346

Store SKU #368902

Ryobi 20 in. 46cc Gas Chainsaw


20 in. 46cc Gas Chainsaw

  • 3-point vibration isolation increases comfort and reduces fatigue
  • Automatic oiler for smooth operation
  • Side access tensioning for easy chain adjustment
$17900 /each

Frequently Bought Together

Product Overview

Designed for aggressive cutting and ultimate control, the RYOBI 20 in. 46cc Gas Chainsaw features a large 20 in. bar and chain with an automatic oiler for smooth, uninterrupted operation. The 46cc 2-cycle engine provides reliable performance time after time, while the anti-vibe handle reduces fatigue to help you get the job done fast. In addition, the side-access chain tensioning and replacement make adjustments quick and easy to accommodate the task at hand.

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  • 20 in. bar with a 3/8 in. pitch and a full-complement chain for great cutting performance
  • 46cc, 2-cycle gasoline engine generates great cutting power
  • 3-point vibration isolation for operator comfort and reduced fatigue
  • Inertia-activated chain brake for safety
  • Safe-T-Tip helps prevent rotational kickback
  • Side access tensioning enables quick and easy adjustments
  • Automatic bar and chain oiler keeps them lubricated to maintain smooth functionality
  • Heavy-duty carrying case included for easy transport and storage
  • Backed by 3-year limited warranty

Info & Guides

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Warranty / Certifications

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Customer Questions & Answers

is the safe-t tip removable

will i be able to remove the safe-t feature when necessary ? i know from experience that it (safe-t tip) can bind up when cutting though larger trees. so i would like to have this option. or does ryobi possibly sell a 18"/20" bar that dosent have the safe-t tip? i own a large assortment of the one+ tools, some from the start it & some from the newer lithium ion line(drill,saw,sawzall,fans, weedwhip, spotlights,flashlight, sander, little vacuum, bigger shopvac/blower,10"chainsaw,jigsaw,caulkgun all work great. the ole style impact driver took unbelievable amounts of abuse (metal roofing) before it started getting touchy and needed to be retired for a new green one working on abusing that one now. the little radios don't take abuse so well tho, just bought like my 4th/5th but this is the first green one purchased the Ryobi 2-Cycle 25cc Gas Full Crank Straight Shaft String Trimmer I've had no issues with that all season and again i am not easy on my tools so i know what i can expect from a ryobi tool thanks for your time and your tools & please say yes
Asked by: turtle
Yes, but I wouldn't recommend it.
Answered by: Charlie
Date published: 2016-10-23

What replacement Chain does it use?

I am going to buy this saw, and I know I will need chains, home depot sells alot, which one fits?
Asked by: bigtires001
Oregon H78
Answered by: CountryBoy
Date published: 2016-09-23

Does the chain come pre sharpened?

Does the chain come pre sharpened?
Asked by: Toro
Yes, the chain is sharpened during the manufacturing process and is ready to use.
Answered by: RYOBIOutdoors
Date published: 2017-01-06

Does Home Depot Carrie a replacement bar and/or chain for a model that a few years older?

Asked by: Cowboyjasper
This bar and chain combo will fit and it is stocked in most stores:
Answered by: RYOBIOutdoors
Date published: 2017-01-03
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Customer Reviews

20 in. 46cc Gas Chainsaw is rated 3.6 out of 5 by 158.
Rated 5 out of 5 by from I have had this model chainsaw since I bought it brand new from Home Depot back in 2010. Except, ... I have had this model chainsaw since I bought it brand new from Home Depot back in 2010. Except, back then they were marketed under the Homelite name as the Homelite Pro 4620 - UT10522 and were red in color. However, the current 20 inch, 46cc Ryobi Model RY10521 is the EXACT same chainsaw, just now under the Ryobi brand name, and the parts numbers for either brand name will interchange, except that the newer Ryobi model has had a few minor changes. (For example, back then, the Homelite had a tool-less chain tensioner system, and while it works okay, the current tensioner that the Ryobi now has is better. Also, the air filter is more easily accessed now.) This model has been a very good chain saw, has decent power, and cuts well. It has also been very durable and reliable. Unlike some comments, I have never had any problem keeping the correct tension on the chain, and mine seldom needs to be adjusted, once properly done initially. The only time I ever had a engine performance problem was when I forgot to run out the gas when I was done using it one fall, and stupidly left the old gas mixture sitting in it for over a year. I did have to take the carburetor apart and clean it, but that is not very hard, and you can easily find a You-Tube video to show you how. That said, it is very important to always use fresh gas mixture, and use an oil mix that has both stabilizer and ethanol treatment additives in it. Most small 2 cycle engine running problems can often be traced back to using stale gas, or gas screwed up by containing ethanol. Overall, it has been a good saw, and well worth the $159 I paid for it on sale almost 7 years ago.
Date published: 2017-02-28
Rated 5 out of 5 by from Great for cutting up Storm Damaged trees had to pick this up to cut up some trees that had been blown onto a radio tower equipment shed. Cut threw the maple tree like butter, very easy to handle, the chain break is a nice safety feature. I recommend picking up the gas/oil premix blend to get you going right out of the box. the long bar is very nice for going threw thicker trunks, and I MUST say that the end of the bar has a chain guard on it, I LOVE IT, its great for keeping your chain sharp when cutting up logs on hard surfaces like concrete.
Date published: 2011-07-12
Rated 4 out of 5 by from The chainsaw is great. I had a little problem with... The chainsaw is great. I had a little problem with starting it after the second use, but I think that it just due to the fact that it is a two stroke engine. The case was also nice.
Date published: 2017-05-16
Rated 2 out of 5 by from I was expecting more power from a Ryobi, but it is very sluggish. For small limbs this saw will ... I was expecting more power from a Ryobi, but it is very sluggish. For small limbs this saw will work, but nothing larger than a 2" limb or it struggles.
Date published: 2017-05-02
Rated 1 out of 5 by from This saw has no power at all! Chain would stall when any pressure was on it. May work better with... This saw has no power at all! Chain would stall when any pressure was on it. May work better with a 12 bar.
Date published: 2017-06-13
Rated 1 out of 5 by from Could not start saw. Returned for refund. Could not start saw. Returned for refund.
Date published: 2017-02-21
Rated 4 out of 5 by from An excellent saw, with one caveat This Ryobi 20-inch chainsaw is a real workhorse. It's easy to operate, and the anti-vibration feature is noticeably effective. It creates a LOT of sawdust in a short time. I've rated Features, Quality, Ease of use, and Value as excellent. I've given it only four stars as overall rating for one minor reason. I discovered that it's necessary to check chain tension about every 30 - 60 minutes. Other models of saws I've used would operate just fine with the chain a little bit slack. With this saw, the chain may come off the bar. I'll have to admit, when that happened I was working the saw pretty hard in a large maple log. I would recommend it to anyone wanting a 20-inch saw that won't dissapoint you. Just remember to check and adjust chain tension often. It's a quick, simple task.
Date published: 2012-09-19
Rated 4 out of 5 by from Awesome saw for the price, love it! Worked great, never had a problem starting, whether the saw was hot or cold. Just followed the instructions and it starts right up. Comes with the standard multi tool for chain adjustments and maintenance. Also has a nice case that has slots to store files and othe tools. With the saw in the case, there is still room for a 1qt bottle of bar oil, and a little bottle of the pre-mix. I left the saw in the case sitting upright. It dripped a small amount of bar oil into the case. It was coming from where the bar connects to the saw body. It didn't leak a lot and I think its stopped but nothing new should leak. Vibration resistant hand made a huge difference after hours of cutting. Overall, I'm totally satisfied with the saw. I cut down and cut up several trees with no problems.
Date published: 2013-04-21
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