0043033565481

Cub Cadet

Model # ST 100

Internet # 204627329

Store SKU # 1000022409

Store SO SKU # 639830

ST100 22 in. 159cc Gas Walk-Behind String Trimmer

$329.00 /each
  • 159 cc Cub Cadet OHV Engine
  • 22 in. cutting swath
  • 14 in. Wheels for easy maneuvering

Frequently Bought Together

Product Overview

The Cub Cadet high performance 159cc OHV engine is equipped with an AutoChoke system that eliminates the need to prime the engine prior to starting. Debris shield on deck protects the operator. Cub Cadet's unique deck design allows you to trim right up against fence lines, posts and other obstacles.

California residents: see  Proposition 65 information

  • Powerful and efficient 159cc OHV engine provides plenty of power for tall grass and weeds
  • AutoChoke feature means no need to prime the engine before starting
  • 22 in. cutting width and five adjustable height settings (1.75 in. - 4 in.) provide versatility for all your cutting needs
  • Unique deck design allows for trimming against fence lines and posts
  • Rolls smoothly on large 14 in. rear wheels with ball bearings
  • Heavy duty 0.155 in. trimming line included
  • Handle folds for easier storage
  • Easy setup: just fold up handle, add gas and oil and go
  • Motor oil included
  • Choose Cub Cadet with confidence, backed with a full 3-year limited warranty, including the engine

Info & Guides

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Specifications

Dimensions

Assembled Depth (in.) 
22 in 
Assembled Height (in.) 
41 in 
Assembled Width (in.) 
55 in 
Line diameter (in.) 
.155 
Size of Yard 
1/4 - 1/2 Acre 

Details

Assembly Required 
Yes 
Cutting Width (in.) 
22 
Engine Displacement (cc) 
159 
Engine Type 
4 Cycle 
Engine Type 
4-cycle OHV 
Features 
Rust resistant deck 
Fuel tank capacity (gallons) 
.25 
Included 
Engine oil 
Lawn Mower Type 
Trimmer Mower 
Maximum cutting height (in.) 
4.375 
Minimum cutting height (in.) 
2.375 
Power Type 
Gas 
Product Weight (lb.) 
70 lb 
Reconditioned 
No 
Refurbished 
No 
Returnable 
30-Day 
Start Type 
Manual 
Terrain 
Uneven with Obstacles 
Wheel Size 
14 x 2 

Warranty / Certifications

Manufacturer Warranty 
3-year limited warranty, including the engine 

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Customer Questions & Answers

43 Questions130 Answers

Customer Questions & Answers

ST100 22 in. 159cc Gas Walk-Behind String Trimmer
ST100 22 in. 159cc Gas Walk-Behind String Trimmer

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12 answers

where do you get the replacement line for this trimmer

This question is from ST100 22 in. 159cc Gas Walk-Behind String Trimmer
Asked by
Ohio
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May 15, 2014
I would like to buy this trimmer the reviews are great everyone likes it! But if it's a lot of trouble to get the line --- SORRY NO SELL!!
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Answers (12)

Asked by
Heber City, UT
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Home Improvement Profile: DIYer
May 30, 2016
Answer: 
When I bought my trimmer, I bought Rino-Tuff Heavy Duty replacement line as I knew I would eventually need it. I got it at Home Depot also and today I had to use it for the first time. It is wonderful. It has line cutter on it also and I just cut it to 19" which is what the original line was. Wish I had known this was so much better than what came with the machine. Easy to replace on the machine as Read More
When I bought my trimmer, I bought Rino-Tuff Heavy Duty replacement line as I knew I would eventually need it. I got it at Home Depot also and today I had to use it for the first time. It is wonderful. It has line cutter on it also and I just cut it to 19" which is what the original line was. Wish I had known this was so much better than what came with the machine. Easy to replace on the machine as well. Read Less
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April 10, 2016
Answer: 
Have you try it?? That line is awsome!! It should work great!!!
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Asked by
West Michigan
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Home Improvement Profile: DIYer
April 7, 2016
Answer: 
I bought a 5lb spool when I purchased the mower from Home Depot. I believe it was .125 dia, 5lbs for $59
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Asked by
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September 21, 2015
Answer: 
This may work well: Oregon 22-455 Heavy-Duty Professional Magnum Gatorline Square String Trimmer Line .155-Inch Diameter 1-Pound Donut
Available through Amazon around $16.00
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Asked by
Beaumont, CA
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June 28, 2015
Answer: 
Available at home depot .155" trimmer line. Search rhino-tuff hd (heavy duty) trimmer line sold in 100 foot rolls , cut your own with cutter supplied on package to approx. 19" Length.
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Asked by
West
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Home Improvement Profile: DIYer
May 27, 2015
Answer: 
You can definitely buy replacement line in-store at your local Home Depot.
Just look for .155 line at the store, the neon yellow Rino Line even has a built-in line cutter. its great and cheap and a lil stronger than the factory line.
+1point
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Asked by
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May 1, 2015
Answer: 
It looks identical to the generic 155 string I have for other trimmers that I bought at Home Depot
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Asked by
Keller, TX, USA
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June 3, 2014
Answer: 
Replacement line was readily available at my Home Depot, in fact, I bought a large container of the string while I was there.
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Asked by
New Jersey, USA
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Home Improvement Profile: DIYer
May 18, 2014
Answer: 
I bought mine directly from Cub Cadet since Home Depot did not carry. It does ship with 10 extra lines which sure will last a long time since these lines can take good beating.
+2points
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Asked by
Cleveland, Ohio
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Home Improvement Profile: Professional
May 16, 2014
Answer: 
Hello Silverdollar84,
You can purchase replacement line directly from the factory, by calling, 1-877-428-2349.
Thank you for your question.
+5points
6out of 7found this answer helpful.
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May 15, 2014
Answer: 
It uses Square .155 lines. when you buy the unit it comes with several extra lines. These lines are very strong
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Asked by
Wausau, WI
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Home Improvement Profile: DIYer
May 15, 2014
Answer: 
Hello Silverdollar84,
You can buy replacement string at Home Depot in store and online.
I buy mine in store. It's not very expensive and can be replaced easily. No tools needed, no spooling needed like a regular smaller trimmer. It simply wraps and locks into place on the hub.
I have pictures and video on my review that show where and how the string is attached.
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10 answers

Why the rule of only mowing up to 15 degrees of incline?

This question is from ST100 22 in. 159cc Gas Walk-Behind String Trimmer
Asked by
Northwest Arkansas
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March 29, 2014
Is this a safety issue, or an issue of oil not getting to the engine if the engine is tilted farther than that?
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Answers (10)

Asked by
Beaumont, CA
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June 28, 2015
Answer: 
Common sense is all. Just trim the face of the slope so you can handle machine easier. Not trim up or down.
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Asked by
Near La Crosse, WI
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June 21, 2015
Answer: 
Aside from safety, probably due to the flow of oil being hampered. Same on many mowers.
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Asked by
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May 1, 2015
Answer: 
The short answer is: I don't know. My opinion is:
Going straight up a hill, you must push down on the handlebar to tilt the nose up and still push the machine up the hill at the same time. That's awkward.
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Asked by
San Antonio TX
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Home Improvement Profile: DIYer
February 14, 2015
Answer: 
The engine can take a tilt of 90 degrees momentarily if required, though it is not recommended because the oil can get into the upper part of the engine and back flow to the carburetor making it hard to start. The 15 degree recommendation is for safety as it can be hard to handle the weight of the trimmer, and on an incline it is harder to keep your footing.
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Asked by
New Jersey, USA
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Home Improvement Profile: DIYer
May 18, 2014
Answer: 
More than 15 degrees will cause the engine to struggle in receiving oil supply and that certainly is not good for the engine.
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May 15, 2014
Answer: 
Might be due to the design of the ball it rides on in front of the mower. It might "dig" if you are going up a steep incline.
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May 14, 2014
Answer: 
It's just a safety recommendation from them. The manual states anything over 15 degrees incline could be a tip over hazzard
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Asked by
Bear, DE, USA
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Home Improvement Profile: Professional
May 1, 2014
Answer: 
This engine like most small OPE is a slash lube and not pressure lube. If tiled too far, lubrication starvation can incur.
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April 20, 2014
Answer: 
this would be a safety issue, as often individuals may not be using safety boots while mowing. if there should be a slip, this could be very dangerous.
inclines can be damp with dew or wet grass, and call falls even in dry conditions.
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Asked by
Cleveland, Ohio
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Home Improvement Profile: Professional
March 31, 2014
Answer: 
Hello,
You do not want to operate this machine on more than a 15 degree incline, due to the issue of the engine not recieving enough oil, and can possible sieze up due to the lack of oil.
Thank you for your question.
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9 answers

do you need to mix the oil and gas or are they separate?

This question is from ST100 22 in. 159cc Gas Walk-Behind String Trimmer
Asked by
Arkansas
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April 16, 2015
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Answers (9)

Asked by
West Michigan
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Home Improvement Profile: DIYer
April 7, 2016
Answer: 
They are separate. Just like a regular lawn mower
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Asked by
Beaumont, CA
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June 28, 2015
Answer: 
Seperate on the model i purchased it has a 4 cycle lawn mower engine. 20 oz. 10-30 oil is included.
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Asked by
Near La Crosse, WI
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June 21, 2015
Answer: 
They are separate and the type of oil is clearly displayed so you don't forget. Will use up to 10% ethanol mix.
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Asked by
NE WA state/Northern Idaho
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June 17, 2015
Answer: 
A quart of oil actually comes with the trimmer, and you add your own gasoline! Add these two items, adjust your handle comfort level, and pull the cord! Away you go!
-1point
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Asked by
West
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Home Improvement Profile: DIYer
May 27, 2015
Answer: 
They are separate- get som 10w30 and som gas and yer set- to hollar away at your unruly brush..
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Asked by
Garfield KY
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May 10, 2015
Answer: 
You don't need to mix the gas and oil. There a Cap that says gas and a tag that says add oil where you add the oil.
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Asked by
Alabaster, AL
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Home Improvement Profile: DIYer
May 6, 2015
Answer: 
No, you don't have to mix oil and gas as this uses a 4 cycle engine. Only 2 Cycle engines require mixed gasoline. You do have to add oil to the crankcase however, which is included in the box. This unit uses a lawnmower engine, so it is very powerful.
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Asked by
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May 1, 2015
Answer: 
It's 4-cycle so no oil is added to the gas
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Asked by
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April 20, 2015
Answer: 
Hello MusicMan. The fuel and oil in the 22 in. 159 cc Gas Walk-Behind String Trimmer are separate. This is a 4-cycle engine. Thank you for your question.
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7 answers

Who is the manufacturer of the engine? Honda? Briggs & Stratton? Another?

This question is from ST100 22 in. 159cc Gas Walk-Behind String Trimmer
Asked by
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December 8, 2013
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Answers (7)

Asked by
Keller, TX, USA
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June 3, 2014
Answer: 
Briggs & Stratton
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Asked by
New Jersey, USA
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Home Improvement Profile: DIYer
May 18, 2014
Answer: 
Powermore High Performance159 cc OHV engine with 3 year warranty
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May 15, 2014
Answer: 
Might be a made in china motor. China has a lot of well performing motors now. I must say that this motor starts very easy and the auto choke is great.
-1point
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May 14, 2014
Answer: 
The engine is an MTD overhead valve
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Asked by
Bear, DE, USA
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Home Improvement Profile: Professional
May 1, 2014
Answer: 
Appears to be a Chinese Honda Clone type engine. Box says "Assembled in China" .
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Asked by
Read all my Q&A
March 10, 2014
Answer: 
The Engine is a 5X65RU Powermore by Cub Cadet. Comes with three year engine and chassis warranty.
+6points
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Asked by
Read all my Q&A
December 10, 2013
Answer: 
Hello,
This machine carries a Cub Cadet high performance 159 cc OHV engine.
Thank you for your question.
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Customer Reviews

Rated 4.6 out of 5 by 161 reviewers.
Rated 5.0 out of 5.0 by Cub Cadet ST100 $329 I was considering the DR Trimmer @ $399 but after chatting with their support i still couldn't decide if their entry level 675 model would be enough for my yard. They couldn't convince me. After selling some items on Criagslist I had $230 cash in my pocket and the banks were already closed so I decided to take a chance on the similarly spec'd Cub Cadet. Worst case i could take it back and they could put the money on my card. After spending an hour with it i feel confident that the Cub Cadet was the right choice for a 2 year neglected back yard. It is really the best option for an overgrown yard. My weed wacker wouldnt make a dent in it. This thing goes through the weeds and growth like butter. June 11, 2016
Rated 5.0 out of 5.0 by Product is a beast! Set up was beyond easy, adjust the handle, set the pull cord, add oil, add gas. Didn't even need to adjust trimmer height. 1st pull started right up. I own a straight shaft, steel blade trimmer I usually use on this (not my yard), but I get covered in mud and grass, exhausted and poison ivy. The Cub Cadet just blasted through this stuff. The big wheels helped move over the mud dobbers easier. Pay attention to the incline directions cause it will tip. Only had to replace lines twice, and that was user error cause I tried trimming rocks, not recommended. Glad I made the purchase! June 7, 2016
Rated 5.0 out of 5.0 by It's a beast! (with the right string) We bought this trimmer to clear grasses and brush in the rough and wooded terrain around our house. We were initially disappointed because, while it cleared the grasses easily, the string (which came with the product) wrapped around and broke on the berry stalks and small saplings that were everywhere. We had to snip these all by hand, which made the trimmer almost worthless to us. Then my husband found a heavy duty string at our local rental shop and decided to try it with our trimmer. It was amazing! The machine was able to rip through rough brush with alder saplings without breaking once. I am a 67 year old woman, and i was able to maneuver the trimmer over rotting logs, and other small obstacles. I was able to clear vegetation to bare dirt level which will help tremendously with fire mitigation. This trimmer has now become our most important landscaping tool. The string we used is Diamond Edge brand 0.155 inch diameter. June 11, 2016
Rated 4.0 out of 5.0 by This machine is a little beast!! Bought this a couple of days ago and its awesome! ! Let the machine do the work and take your time it cut way more than you would think. The only reason we didn't give it 5 stars is because its still new and we're giving it time to be fair. May 3, 2016
Rated 5.0 out of 5.0 by Awesome Trimmer All in all very happy with unit. Only con I have is the way to change oil. I added a drain hose to make changing oil easier and a lot cleaner. Love how it starts with one pull every time. May 26, 2016
Rated 1.0 out of 5.0 by Too bad it didn't Work! Assembled easily. It started right up the first time. However, after a quick test, I took the string trimmer to another location. It wouldn't start again. It was like this for a few hours--wouldn't start. Then it started again. Same thing. When I moved it around to work with it, it wouldn't start a 2nd time. I just about destroyed my shoulder trying to get it to start again. I waited a few days. I tried again--same thing--my friend tried--same thing. Only worked for a few seconds. For those few seconds that it was running, it worked well. Too bad it simply wouldn't work past that. I returned it, and even the tool rental service man at Home Depot discreetly told me he would never buy this product! June 28, 2016
Rated 5.0 out of 5.0 by It's A Beast I have owned the Cub Cadet Walk Behind String Trimmer for about a month. I starts with one pull of the starter rope - every time. I cuts woody weeds (wild berry bushes, tough Russian Olive Tree sprouts, etc.), and, it does so, surprisingly fast. Although the fuel tank is small (0.5-gallons capacity), it runs for several hours without a refill. Now! If I can only find somewhere to buy replacement string, I would be 100 percent satisfied. July 4, 2016
Rated 5.0 out of 5.0 by Great little machine!!! Clean up of our 1 acre campsite with 3 foot high overgrowth was done in a couple of hours with ease. My wife has a bad wrist due to an army injury and could start this with no problem. Highly recommended if you have a lot of trimming to do July 9, 2016
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