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SENIX

SENIX LSPG-M4 21-Inch Gas Push Lawn Mower with 125 cc 4-Cycle Briggs & Stratton Engine, Mulching and Side Discharge, 6-Position Dual Lever Height Adjustment

  • Based on 592 reviews
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Availability: In Stock.
Fulfilled by Hearthshire
Arrives Saturday, Oct 24
Order within 2 hours and 20 minutes
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Set name: 125cc


Features

  • EFFICIENT LAWN MOWING: The SENIX 21-inch gas push mower features a steel deck with a 21-inch cutting width, providing a large cutting area with high durability for small to medium size yards; The fold-down handle allows for easy storage and space-saving
  • EASY-TO-START QUIET ENGINE: Briggs & Stratton 125 cc 4-cycle E450 engine with Prime n Pull start delivers the power to tackle your job; The 4-stroke engine is eco-friendly with low emissions, low fuel consumption, no mixing of oil and gas, and low noise
  • VERSATILE CUTTING CAPABILITY: The 2-in-1 durable steel deck allows you to mulch or side discharge; The ergonomic handle maximizes user comfort during use
  • HEIGHT ADJUSTMENT AND MANEUVERABILITY: 6-position dual-lever height adjustment lets you adjust from 1.25-inches to 3.75-inches to meet the needs of your lawn; Durable 11-inch rear wheels & 8-inch front wheels are designed for easy maneuvering
  • WHAT'S INCLUDED: The SENIX push lawn mower comes with engine oil for your convenience; Is it backed by our 2-year limited warranty, so you can purchase with confidence

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. 2-In-1 Function Expertly distributes clippings for a flawlessly manicured lawn. Built with the power to get the job done. Our classic Prime 'N Pull system makes cold starts easy. 6-position manual height adjustment tailors grass cutting height from 1.25-inches to 3.75-inches. 21-Inch Gas Mower 21-Inch Gas Mower 20-Inch Gas Mower 21-Inch Gas Mower 21-Inch Gas Lawn Mower 21-Inch Gas Mower 21Inch Battery Lawn Mower

Brand: SENIX


Power Source: Gas Powered


Material: Stainless Steel


Color: Blue


Style: 125cc


Item Weight: 57 pounds


Cutting Width: 21 inches


Operation Mode: Manual


Product Dimensions: 32.8"D x 22.7"W x 14.8"H


Number of Items: 1


Brand Name: SENIX


Model Number: LSPG-M4


Number of Items: 1


UPC: 843212113195


Manufacturer Warranty Description: 3-year limited warranty


Unit Count: 1 Count


Manufacturer: SENIX


Item Type Name: Gas Push Lawn Mower with 125 cc 4-Cycle Briggs & Stratton Engine, Mulching and Side Discharge, 6-Position Dual Lever Height Adjustment


Manufacturer Part Number: A025034


Item Weight: 57 pounds


Cutting width: 21 inches


Item Dimensions D x W x H: 32.8"D x 22.7"W x 14.8"H


Wheel Size: 11 inches


Power Source: Gas Powered


Operation Mode: Manual


Maximum Adjustable Cutting Height: 3.75 inches


Minimum Adjustable Cutting Height: 1.25 inches


Number of Positions: 6


Material Type: Stainless Steel


Color: Blue


Style Name: 125cc


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Oct 24

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Well made and light weight while nicely powered and sized for the price.
Set name: 144cc-2-1
Super Easy Set Up with no tools required. Seems to be well made while being lighter than older mowers. It is easily manuverable with the nice wheels sizes especially the larger set on the back that make turns and uneven lawns less work to navigate. Includes the required engine old for use. It's winter here where I live currently so I could not mow with it yet but did run it and it started easily. Just add the oil that's included and your gasoline and 3 pulls later mine roar d to lift. Priced retail at $299 its already a great size deck and higher engine output option compared to others in the same dollar bracket. At the time of my purchase it was on sale for $197 which made it a very impressive multching or side discharge mower compared to any other options similarly priced. If you are looking for the best gas powered mulching mower for around $200 dollars save yourself the search time and shopping and take one of these home. I feel it's a fantastic machine for the money. ... show more
Reviewed in the United States on January 4, 2026 by jwright
    • Easy to use
Set name: 144cc-2-1
....excellent push mower,,,,,,I love it
Reviewed in the United States on August 8, 2026 by Bob
    • Beware, it's not returnable - and it broke down before I even finished mowing my property
Set name: 144cc-3-1
It broke down on the first use, and the item is not returnable. The deck also wouldn't stay up, it's made in a way where the catching mechanism immediately slips right back to the lowest level. That alone would be enough for this mower to be a flop, but it's inexcusable that it died before we even finished the first use. I had mown my front yard and then was halfway through my back yard when it started billowing white smoke out of nowhere. Checked the oil and it was fine, filter was fine, gas full and no grass buildup anywhere. We gave it time to cool down and tried again, it had stopped smoking but before the back yard was even finished it shut off and won't start back up no matter what we do. We have less than 1/3 acre of grass so that shouldn't have been too much for the mower to handle. Luckily Amazon customer service refunded us "as a one time courtesy", but if they hadn't made an exception for us we would have been out the money. No wonder it was one of the cheapest options available, lesson learned I guess Update: we got it started up by priming the engine 20+ times, but it still billowed white smoke and the deck adjustment mechanism broke off immediately. So it still runs I guess but pieces are broken off of it ... show more
Reviewed in the United States on June 22, 2026 by Hannah
    • Good value mower
Set name: 140cc
Review Image by CFM
Good light duty lawn mower for the price. Came with the required oil and was simple to assemble the handle into position. They have knobs so no tools are required. Having the option of side discharge, mulch, or bag is a nice feature. Poured in the oil and some gas and fired right up and cut my yard without any problems. It has a decent quality Briggs and Stratton motor that had plenty of power to cut my St. Augustine sod lawn without struggling. The only issue I had was one of the adjustment handles for the wheels was bent in shipping or packaging and I had to remove the wheel to get the adjustment bar bent back into shape. For me this wasn’t difficult, but could be a problem for someone without the tools, etc to complete the repair. Update: After sitting for the winter a couple of months, the mower started first pull and ran fine. I use Sta-Bil fuel treatment in the gas. Without fuel treatment the ethanol will destroy the carburetor. ... show more
Reviewed in the United States on December 6, 2025 by CFM
    • Wow love it
Set name: 144cc-2-1
Great mower. Must buy
Reviewed in the United States on August 27, 2026 by jeff
    • Very functional lawn mower
Set name: 144cc-2-1
A great lightweight lawn mower. Starts easily. I have been letting it run out all gas at end of use. This keeps the carburetor clean and helps it to start well.
Reviewed in the United States on June 24, 2026 by Amy
    • Broken parts and was assembled in correctly
Set name: 144cc-2-1
Lawnmower runs great. Only 2 issues. The first is the bolt to secure the handle to the frame is broken. The second one was, who ever assembled the wheels needs training. They put the height adjuster on upside down. Nowhere, on here, am I able to get these parts replaced.
Reviewed in the United States on June 29, 2026 by David L Wert
    • Working good
Set name: 144cc-2-1
So far so good.. Very easy to assemble!
Reviewed in the United States on July 21, 2026 by ralph w. lunt

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