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SENIX 20" Gas Lawn Mower, 144 cc Gas Powered Lawnmower, 4-Cycle Engine Walk-Behind Push Lawn Mowers, 3 Position Height Adjustment for Yard and Garden, cortadora de pasto

  • Based on 228 reviews
Condition: New
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Availability: In Stock.
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Arrives Apr 2 – Apr 4
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Style: 20"-144 cc


Features

  • 4QL Powerful Engine144CC 4QL gas engine with more explosive power, lawn and slope operation in one go, efficiently complete large mowing tasks and enhance the mowing experience.
  • 7"/7" Wheel DesignFront 7-inch and rear 7-inch wheel design greatly improves the passability of rugged terrain, from short lawn to rugged slopes can be easily dealt with, adapting to a variety of terrains.
  • 3 Position Cutting Height Adjustable 3 levels of mowing height adjustment, from 1.35 inches to 2.3 inches to 3.15 inches, to adapt to various grass heights. You can adjust the height as needed to make your mowing easier.
  • Quick Installation & WarrantyAccording to the instruction manual, you can easily install. Gas lawn mowers are covered by a warranty within 2-year that gives you peace of mind after the sale.

Description

The SENIX 144CC 4QL gasoline engine has more explosive power to efficiently complete large mowing tasks. The front 7-inch and rear 7-inch wheel design can easily adapt to a variety of terrain. Compared with the 16-inch, the 20-inch mower dramatically improves operational efficiency and integrates mowing and side discharge functions for greater convenience. The mowing height gear is adjustable to accommodate a variety of grass heights.

Brand: SENIX


Power Source: Gas Powered


Material: Stainless Steel


Color: Blue


Style: 20"-144 cc


Item Weight: 39.3 Pounds


Cutting Width: 20 Inches


Operation Mode: Manual


Product Dimensions: 25.6"D x 21.8"W x 13"H


Assembly Required: Yes


Brand Name: SENIX


Model Number: GCJ-LSPG-L4


UPC: 843212102731


Manufacturer: SENIX


Item Type Name: 20 inch 2-in-1 Push Mover with Mulching and Side Discharge, 4-Cycle Engine, 3 Position Cutting Height Adjustment for Lawn, Yard and Garden (LSPG-L4)


Color: Blue


Style Name: 20"-144 cc


Power Source: Gas Powered


Number of Positions: 3


Operation Mode: Manual


Maximum Adjustable Cutting Height: 3.15 Inches


Minimum Adjustable Cutting Height: 1.35 Inches


Item Weight: 39.3 Pounds


Cutting width: 20 Inches


Item Dimensions D x W x H: 25.6"D x 21.8"W x 13"H


Material Type: Stainless Steel


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Apr 2 – Apr 4

This item is non-returnable:

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


  • Great mower for the job!
Style: 20"-144 cc
Does the job,great price,good mower.
Reviewed in the United States on March 11, 2026 by Michael Bump

  • Great mower
Style: 20"-144 cc
I absolutely love this lawn mower. Easy to put together. Light weight .
Reviewed in the United States on January 28, 2026 by Theresa Gonzales

  • Real easy to push even in tall grass.
Style: 20"-144 cc
Start on first pull.cut tall grass just fine.dont stallin heavy grass
Reviewed in the United States on March 8, 2026 by Tommy m.

  • Easy to use
Style: 20"-144 cc
It broke down a month after I had it Because it went over a rock but before that, it worked well
Reviewed in the United States on March 5, 2026 by BJ

  • instructions don't say where to put gas and oil and it's not labeled on the mower
Style: 20"-144 cc
I regret buying this lawn mower. It arrived three days ago and I still have not figured out how to use it. First, do not buy this lawn mower if you have never owned a lawn mower before. Second, do not buy this lawn mower if you have never put a lawn mower together before. In no part of the listing nor in any part of the instructions does it tell you what tools you need. Before buying this I did not own the needed tools. You will need a 10mm socket wrench and a 13mm socket wrench and a crescent wrench to assemble this. a second 13mm socket wrench with a second handle will help as well as a 12mm socket wrench with that same second handle. I did it with just the 13mm and the 10mm and the crescent wrench. Make sure your crescent wrench can open up to 13mm. I attempted to borrow a set of American sockets from a friend but they didn't fit so I had to spend $25 to buy a set of metric socket wrenches on Amazon as Walmart had none and Home Depot and Lowes had only expensive sets (both over $50). So that took me two days of going back and forth trying to figure out what tools I needed. It would have been so helpful if they only had listed those items with the advertisement so that you are prepared. I had no idea what size sockets I would need so I ordered a 3mm to 13mm set and found out by trial and error. I could have just purchased the two size sockets individually had I known ahead of time the size I needed and done that for $10 but their lack of consideration cost me the extra $15. I recommend doing this on a patio table or some such as that will make it easier to install the wheels. But you can do it on a garage floor or driveway. Unfortunately the instructions are in very tiny writing. I am a senior citizen and I had to combine 2.75 dptr reading glasses with a 3X magnifying glass to read everything. the diagrams are also quite tiny so it is difficult to see. There is no clear picture of what screws you have to use on what part. I learned by trial and error. Total assembly time once I had the tools was two hours. I have never put together anything mechanical. If you have experience putting lawn mowers together and have a more extensive set of tools you will probably do this in less time. Now for the reason why I have not yet used this lawn mower. The instructs are incomplete and and are ONLY designed for people with experience using and maintaining lawn mowers. If that is not you then you probably should not get this lawn mower. In absolutely no place in the instruction manual, box, on the listing, in the one video that accompanied the listing or anywhere on YouTube could I figure out where the gas or the oil goes. Now this might seem obvious to anyone with experience using lawn mowers. But despite being 65 years old, I have never until now attempted to use a lawn mower that had a motor in it. My old one was completely manual and it just couldn't do the job. None of my immediate neighbors speaks English and my friend who loaned me the American wrench set does not have a lawn and knows nothing about lawn mowers. It would be nice if at least it was labeled on the lawn mower itself but it is not. So I am taking a risk. If I put the oil and the gas both in the wrong place I think I will probably ruin the engine or perhaps start a fire. Now if you have lots of lawn mower experience this might be a good deal for you. But I could not tell you since I have not yet figured out to how to get it going as there is no oil and gas in it yet. I absolutely cannot recommend this lawn mower for the above reasons. ... show more
Reviewed in the United States on June 27, 2025 by David J.

  • So far, so good. Better than a junky Powrrsmart mower!
Style: 20"-144 cc
I bought this mower to replace a new Powesmart mower which was absolute JUNK (proudly made in the USA & the worst customer service ever!). Fingers crossed this mower holds up, so far so good. It starts up on the first pull and does a great job of cutting the grass. Yeah, it’s kind of a pain with respect to adjusting the wheel height but I don’t care about that. I need a mower that won’t break after the first time I use it. I like the color too! ... show more
Reviewed in the United States on August 5, 2025 by Vickie M

  • Cheaper than box store
Style: 20"-144 cc
After building a mower (lol) , it took about a half an hour to assemble the mower. Pretty straight forward on the put together. Need 10-12-13 mm to put together. Would suggest 2 ratchets . Easy to maneuver and primes easily. Ran smoothly didn't bog down or lope . Slim and maneuvers around the tight spots. I live in Florida we are in the rainy season. Set at 2.5" (middle hole ) very clean cut and semi mulch. Personal feelings , good product for the price. ... show more
Reviewed in the United States on June 14, 2025 by James Harp

  • Decent basic mower
Style: 20"-144 cc
Decent basic mower. Biggest drawback is it does not have quick adjusting wheels to set for height of cut. You have to completely unbolt each wheel and bolt them into 1 of the 3 bolt holes provided to set the height of cut you prefer. Also does not have mulching option, side discharge only. Seems to run decent so far and I really like the color of it. ... show more
Reviewed in the United States on June 28, 2025 by Ryan Damron

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