SENIX 20" Gas Lawn Mower, 144 cc Gas Powered Lawnmower, 4-Cycle Engine Walk-Behind Push Lawn Mowers, 3 Cutting Height, Lightweight,for Garden Yard
Condition: New
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Availability:
In Stock.
Arrives
Monday, Nov 2
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At a glance
- Condition
- New
- Set
- 20"-144cc
- Model
- LSPG-L4-001A-002
- Dimensions
- 25.6"D x 21.8"W x 13"H
- Weight
- 39.3 lb
- Color
- Blue
- Material
- Stainless Steel
Features 5
- Powerful 144CC 4QL EnginePowered by a dependable 144CC 4QL gas engine, this mower delivers steady power to cut through thick grass and gentle slopes. It starts easily and runs smoothlyso you can focus on mowing, not struggling with the machine
- 20-inch Cutting WidthWith a generous 20-inch cutting width, this mower covers more ground in a single pass, significantly improving operational efficiency compared to standard 16-inch models
- 7"/7" Wheel DesignEquipped with front and rear 7-inch wheels, this mower glides effortlessly over uneven ground, bumpy patches, and sloped areas. The wheels reduce resistance and make pushing feel light and naturalhelping reduce strain on your arms and back
- 3 Adjustable Cutting HeightsOffering three versatile cutting height settingsfrom 1.35 inches to 2.3 inches to 3.15 inchthis mower adapts to different grass conditions
- Quick Installation & WarrantyDesigned for quick and hassle-free setup, this gas lawn mower comes with clear instructions for simple installation. Plus, enjoy peace of mind with a 2-year warranty that ensures long-term reliability and customer satisfaction
Description
Backed by 20+ years of manufacturing and innovation in the tool industry, at SENIX, we aim to break barriers and shatter expectations by redefining and manufacturing outdoor power equipment and power tools with edgy innovation and relentless passion. Whether you're an arborist, a landscaper, or a fearless DIY enthusiast, SENIX tools have been crafted with you in mind. We empower you to conquer any task at hand.
Specs 25
| Brand | SENIX |
|---|---|
| Power Source | Gas Powered |
| Material | Stainless Steel |
| Color | Blue |
| Style | 20"-144 cc-4 Cycle Engine |
| Item Weight | 39.3 pounds |
| Cutting Width | 20 inches |
| Operation Mode | Manual |
| Product Dimensions | 25.6"D x 21.8"W x 13"H |
| Number of Items | 1 |
| Brand Name | SENIX |
| Model Number | LSPG-L4-001A-002 |
| Manufacturer Warranty Description | 2 Year Manufacture |
| Unit Count | 1 Count |
| Number of Packs | 1 |
| Manufacturer | SENIX |
| Item Type Name | 20" Gas Lawn Mower |
| Manufacturer Part Number | gas lawn mower |
| Item Dimensions D x W x H | 25.6"D x 21.8"W x 13"H |
| Wheel Size | 7 inches |
| Maximum Adjustable Cutting Height | 3.15 inches |
| Minimum Adjustable Cutting Height | 1.35 inches |
| Number of Positions | 3 |
| Material Type | Stainless Steel |
| Style Name | 20"-144 cc-4 Cycle Engine |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Nov 2
This item is non-returnable:
Non-returnable. Transportation of this item is subject to hazardous materials regulation
View our full returns policy here.
Non-returnable. Transportation of this item is subject to hazardous materials regulation
View our full returns policy here.
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Top Amazon Reviews
Powerful, Easy to Use, and Leaves a Great Cut
Set name: 21"-170cc
The SENIX 21" Self-Propelled Gas Lawn Mower has been a great addition to my lawn care equipment. It starts easily, has plenty of power, and the front-wheel-drive self-propelled system makes mowing much easier, especially on larger yards. The mower handles thick grass without bogging down and leaves a clean, even cut every time. The cutting height is easy to adjust, and it maneuvers well around trees and landscaping. Whether you're mulching or bagging, it performs reliably and gets the job done efficiently. If you're looking for a dependable gas mower with solid performance and excellent value, this is an easy recommendation.
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Reviewed in the United States on July 22, 2026 by Robert Hicks
Great mower at a great price
Set name: 20"-144cc
This thing is amazing. I got the 20”. It was easy to put together (once I found the company’s website because my couldn’t see the little print on the instructions), and it cut my super thick, super tall grass like a hot knife through butter. The initial start up did take quite a few pulls, but after that, it started on the first or second pull every time. It’s easy to push and I didn’t have to go over spots multiple times to get the grass cut. I defiantly recommend this mower for anyone looking for an affordable one. I even appreciate the initial oil being included. The only thing I had to add was gas. It doesn’t hurt that everyone tells me how pretty it is.
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Reviewed in the United States on August 20, 2026 by Joni Prater
Do Not Buy!
Set name: 21"-170cc
This is not our first mower. We have owned our home for 15 years and have had 3 or 4 mowers over that time. This is the worst one we have ever had. It arrived damaged. The wheel height adjuster was assembled backwards. Not a big deal. We removed the wheel, flipped the bar over, pit the wheel back on. Used it and everything seemed to work fine. A week later we go to use it again and not only did it take like 10 minutes and countless pulls to start, it barely stayed on. We checked the oil and it was thick and black. We had only put brand new oil in it the week before. It should not have been thick and black. I have had mowers 3 or 4 years old who's oil is never like that. We attempted to mow and it just wouldn't stay on long enough to do more than 3 or 4 feet at a time. My order said eligible for return for 30 days. I attempted to return it, but because we had used it once it said it wasn't eligible. So I managed to eventually reach Amazon customer service who thankfully, immediately issued a refund to our credit card. Unfortunately this mower now goes to scrap.
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Reviewed in the United States on July 18, 2026 by Firefly8teen
Satisfied customer good value for the price
Set name: 21"-170cc
Great mower. I'm getting a little older so I needed to replace my existing push power mower with a self-propelled model. Assembly was very simple as it just needed the handle to be unfolded and secured. Added oil and gas, primed it three times per instructions and pulled the starter cord three times. After that, one pull is all it took. It started right up and I put it to work in a yard that needed mowing a week ago. It was so easy and quick that I was a little disappointed that it was done. I'm actually looking forward to mowing again next week.
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Reviewed in the United States on July 2, 2026 by Amazon Customer
Good mower. Good price. Easy start.
Set name: 20"-144cc w/5 cutting height
Showed up quickly and I was cutting the lawn with it 15 minutes after opening the box. Someone who didn't read the instructions could have done it in 5 minutes. It cut smooth and even, managed about 1/2 an acre on one tank of gas, and was able to cut an over grown backyard with grass as high as 18 inches. I cut a solid acre in an afternoon, only limited by my own stamina. My riding mower is on the fritz and I needed something cheap to fill the gap. I ordered on Monday, had by Wednesday, unboxed and mowed on Saturday. If you wanted a bottom of the line side discharge, this is a good one. No complaints. I think it will serve me for years as small space and back up, or even the acre.
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Reviewed in the United States on May 4, 2026 by EL Montague
Great mower, but height adjustments are lacking
Set name: 22"-201cc
I probably should give this mower 5 stars, but I can’t. There are some very wonderful things that I have to say about this mower, but I have two issues to complain about. One issue is important. The other is probably nitpicking on my account. First of all, I noticed that the reviews of all SENIX models are lumped into the same review thread on Amazon. From the reviews that I have read, each model is obviously very different. I bought the 22-inch cut, 201cc model. Let me start with the good stuff. This mower kicks butt! It has lots of power! My lawn was overgrown before my mower arrived (12 inches thick in some spots) and this mower cut through my lawn like butter. It started on the first pull - and it was an effortless pull (once again, like butter). The bagger receptacle is the perfect size and shape to fit the opening in a recycling bag, so dumping is a breeze. Because my lawn was so thick, had to stop the mower many times to empty the bag, but it always started back up effortlessly on the first pull (and this was in 92-degree weather). So, yeah, it is a great mower, but here are my gripes. The height adjustments for the cut are WAY TOO LOW! I mowed my lawn the first time on the tallest cut setting and it still cut it so short that it looked like I was mowing a golf course fairway. I dropped it one setting (of the possible 6 settings) and it looked like I was mowing a putting green. The lower four settings must be for roto tilling your lawn. I am afraid to test them. I do not want to tear up my lawn. Here’s my other complaint. This is the nitpicking thingy. SENIX went to the trouble of coming up with a really cool undercarriage wash with a quick-connect garden hose nozzle that rests on top of the cutting housing to make washing the blade and housing super simple. Here’s the annoying part- they didn’t include the other half of the connection, and the male nozzle on the mower is smaller than a standard 3/4” hose female connector. I wasted a lot of time and $ finding a connection that actually fit this thing, when SENIX could have spent 99 cents at production level and thrown in the hose adapter for this $500.00 mower! …see, I told you it was nitpicking, but for pete’s sake, SENIX, you come up with a great idea, but you just can’t “stick the dismount.” Once again, the mower itself is powerful and easy to start. I would recommend this 201cc model for anyone that always likes to give their lawn a crew cut, but you will not be able to cut it any taller than that. I usually like my lawn to have a little taller cut.
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Reviewed in the United States on July 8, 2026 by B. W. Mongoose
Easy for A woman to handle
Set name: 21"-170cc
I love this mower cranks on the 1st pull easy to handle very lite It's been a very long time since I've owned A self propelled mower
Reviewed in the United States on August 2, 2026 by Placeholder
Stay Away From Senix!
Set name: 20"-144cc w/5 cutting height
The only good things I can say about this mower is that it comes almost completely assembled with the motor oil included. And it’s a pretty blue. Other than that it’s a piece of junk. I had difficulty starting mine right off the bat. It took multiple pulls on the power chord which required a lot of strength because the chord seemed to keep getting stuck. Every time I had to stop the mower then start it again I went through the same misery…15-20 pulls before it would start. In addition, I set the cutting height to my customary next-to -the-lowest setting and it immediately began to vacuum up the soil on my lawn and blow it out the side discharge with alarming velocity. I’m talking about huge clouds of soil that blew out and covered everything in the vicinity—including me. My lawn was not dry either—it had rained the day before. I NEVER had a lawn mower do that before. It almost seems like the engine has too much power for what it’s made to do. I managed to get my back yard and side yard mowed but then while I was mowing my front yard, I began to hear what sounded like something made of metal knocking around inside the mower. The next thing I knew I heard a loud “Pop!”, The mower shut off and I’ve been unable to start it since. I think it’s dead. I’m so bitter and angry about this because it’s too late to send it back and I still have more payments I have to make on it.
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Reviewed in the United States on May 28, 2026 by Vickie