SENIX 21" 140cc 4-Cycle Briggs & Stratton Engine Gas Push Lawn Mower with 3-in-1 Mulching, Bagging, Side Discharge

|35 ratings
Item # 990484081
Current price is $319.97
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Columbus, 43215
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Smart summary

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  • Robust Engine: Features a 140cc Briggs & Stratton 4-stroke gas engine (E550 model) for clean, consistent performance, complete with a Prime 'n Pull start for effortless ignition.
  • Adaptive Cutting: Equipped with a durable, rust-resistant 21-inch steel cutting deck, ideal for small to medium-sized lawns, and a 3-in-1 system for mulching, rear bagging, or side discharge.
  • Precise Height: Offers a 6-position dual-lever height adjustment, allowing custom cutting heights from 1.25 inches to 3.75 inches to suit various lawn conditions.
  • Effortless Maneuverability: Designed with oversized 11-inch rear wheels that effectively tackle bumps and uneven ground, ensuring smooth navigation across your yard.
  • Compact Storage: Features a fold-down handle, enabling quick and compact storage of the mower, saving space when not in use.
  • Spacious Collection: Includes a large 16-gallon rear collection bag, holding 50% more clippings than standard bags to minimize emptying frequency.
senix 21" 140cc 4-cycle briggs & stratton engine gas push lawn mower with 3-in-1 mulching, bagging, side discharge — 3/4 front-right view showing the black Briggs & Stratton engine on a 21-inch steel cutting deck, black 16-gallon rear collection bag with Senix logo, oversized rear wheels, side discharge chute, fold-down handle with orange quick-release clips, and dual-lever height adjusters; also suitable for small yards or urban lots.
SENIX 21" 140cc 4-Cycle Briggs & Stratton Engine Gas Push Lawn Mower with 3-in-1 Mulching, Bagging, Side Discharge
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About this item

Product details

Simple. Tough. Gets the job done. Take control of your yard with the SENIX 21-inch Push Lawn Mower, powered by a 140cc Briggs & Stratton 4-stroke engine that delivers clean, consistent performance without the gas-oil headache. This walk-behind gas mower is built for efficiency — featuring a rugged 21-inch steel deck and 3-in-1 cutting system that lets you mulch, rear bag, or side discharge on your terms. Prime N’ Pull™ start gets you going with minimal effort, and the 6-position dual-lever height adjustment (1.25" to 3.75") means you can dial in the perfect cut for any season. Oversized 11-inch rear wheels tackle bumps and uneven ground without a fight, and the fold-down handle makes storage quick and compact when you're done. This mower doesn’t overpromise — it overdelivers. The LSPG-M7 is a dependable backyard companion that keeps your lawn in shape and your weekend headache-free.
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Specifications

  • Ergonomic Handle Design — 20% lower vibration and comfort grip reduce arm fatigue for a more comfortable mowing experience.
  • Fold-Down Handle for Compact Storage — Easy to store in tight spaces, saving valuable garage or shed room.
  • 2-Year Limited Warranty — Provides peace of mind with reliable support and long-term durability.

Member ratings & reviews

3.9 out of 5 stars
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Showing 1-3 of 35 reviews

Nov 6, 2025
Reviewer name: Victoria
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

i am over 60 with many health issues,one being copd, and this mower allows me to mow my uneven, slightly inclined area with ease. the bonus is i dont get short of breath. the downside is that the bag only allows me to make one pass b4 i have to dump it, and it isn't very easy to remove and reattach quickly. overall, i love it.

Review from walmart.com
Helpful?6M6X07THNVRB18850422510
Jul 26, 2023
Reviewer name: Beckygirl318
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Does what it is suppose to!

very good mower so far. i usually ise self propelled but finances didnt allow this time. I'm very impressed with how easy this mower is to use. i can actually mow more yard with less effort then using the last couple of mowers i owned. The mower is light weight so its important to not push down while you push otherwise the mower lifts up but if just pushed regulary, i really couldnt ask for a better mower. The price on sale was much better than mowers of the same 140cc, 21 " cut and metal pan! just hope this kower last longer then the last two.

Review from walmart.com
Helpful?6M6X07THNVRB18850422510
Apr 26, 2024
Reviewer name: Sherry
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Can't wait to cut my grass

[This review was collected as part of a promotion.] So far, I love the mower. I haven't used it yet. First time buying this brand. Looking forward to cutting my grass. Assembled it will no problems. Nice grass catcher. Not too heavy. Feels good in my hands. My other mower is old so thought I better buy a spare. So, I'm ready. Grow grass grow !

Review from walmart.com
Helpful?6M6X07THNVRB18850422510