SENIX 21'' Self-Propelled Gas Lawn Mower (FWD), 170 cc 4-Cycle Engine 3.8 HP, 3-in-1 (Bagging/Mulching/Side Discharge), 6-Position Cutting Height Adjustment, 1.7 Bushels Grass Bag
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Availability:
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Arrives
Friday, May 1
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Size: 21 Inch
Features
- Effortless 1/2 Acres Maintenance The 21-inch cutting width, combined with a durable high-strength steel deck, makes this self-propelled lawn mower a breeze to use. Effortlessly tackle 1/2 acres yards and enjoy a flawless cut every time.
- Powerful 170cc OHV Engine Powered by a reliable 170 cc 4-stroke OHV gas engine designed for longer life, low vibration, and easy maintenance. Delivers 3.8 HP and 6.5 ft-lb of torque. Pre-filled oil allows for seconds-fast startup, with a fuel consumption of approximately 27 oz per hour.
- Versatile 3-in-1 Cutting System The 3-in-1 steel deck supports mulching, side discharge, and rear bagging for complete mowing flexibility. Includes a 1.7-bushel bagger and ergonomic handle for all-day comfort.
- 6-Position Height Adjustment Dual-lever height adjustment offers 6 positions ranging from 1.25 to 3.75 inches, ensuring the perfect cut every time. The unique vortex tunnel design reduces grass buildup on the deck, while 8-inch front and 11-inch rear wheels provide excellent maneuverability on rough terrain and uneven surfaces.
- What's Included This fwd self-propelled lawn mower comes complete with engine oil, mulch plug, side discharge chute, and a 1.7-bushel bagger. All SENIX gas lawn mowers are backed by a 2-year limited warranty for your peace of mind.
Brand: SENIX
Power Source: Gas Powered
Material: Alloy Steel
Color: Blue
Style: 21 Inch-170cc
Item Weight: 61.7 Pounds
Cutting Width: 21 Inches
Operation Mode: Automatic
Product Dimensions: 61"D x 22.83"W x 41.5"H
Smart Home Compatibility: Not Smart Home Compatible
Brand Name: SENIX
Model Number: A025054-A
Manufacturer: SENIX TOOLS
Item Type Name: Self-propelled lawn mower
Unit Count: 1.0 Count
Color: Blue
Style Name: 21 Inch-170cc
Power Source: Gas Powered
Number of Positions: 6
Operation Mode: Automatic
Maximum Adjustable Cutting Height: 3.75 Inches
Minimum Adjustable Cutting Height: 1.25 Inches
Item Weight: 61.7 Pounds
Cutting width: 21 Inches
Item Dimensions D x W x H: 61"D x 22.83"W x 41.5"H
Material Type: Alloy Steel
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Friday, May 1
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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- Financing through Apple Pay
Learn more about financing & leasing here.
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Top Amazon Reviews
Size: 21 Inch
Honestly, this mower did way better than I expected. My grass was pretty overgrown and I thought it might struggle, but it handled it like nothing. It cut through thick grass super easily and didn’t get bogged down at all. The lawn came out looking really clean and even, and it’s really easy to use. It’s also super easy to maneuver, especially with the self-propelled feature, it makes pushing it around way less work and a lot faster. Overall, I’m really happy with it. It did an amazing job and made the whole process quick and simple. Definitely recommend if your yard gets a little out of control like mine 😅
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Reviewed in the United States on April 1, 2026 by Monse A.
Size: 20 Inch
I am in love with this mower!! I have tried all kinds of push mowers over the years and the last few have been extremely temperamental when it comes to the pull start. NOT THIS ONE--it starts right away every time!! This has been wonderful. It's lightweight and does a great job with multiple height settings available. I didn't want any bells and whistles--just a basic mower that I could work with easily--this is the one!!!!
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Reviewed in the United States on August 8, 2025 by Tiffany Ciszkowski
Size: 20 Inch
Arrived on time and as described. I looked at a model with a Briggs and Stratton engine, but apparently the one I ordered doesn't have a Briggs? Probably why it's a little cheaper on Amazon. Anyway, it still seems really well built and cut through slightly wet & overgrown grass with ease and it started on the fourth pull. I'm happy with it so far...... Update....... I've had it for a couple months now and it's definitely a good mower.
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Reviewed in the United States on June 1, 2025 by Jeremy Vanover
Size: 20inch-144cc-3 position
I should have paid more attention. This mower has three-wheel levels that have to be changed by removing the wheels and reinstalling them. It also has no mulching cover, and the side discharge chute throws out directly not down. Not happy with it but will not return.
Reviewed in the United States on April 4, 2026 by Jim
Size: 20 Inch
Used this a few times already, starts right up and works perfect, great price and value
Reviewed in the United States on November 12, 2025 by AnoleKing
Size: 20 Inch
Works better than expected. Easy to start, and plenty of power. Cut through a fairly overgrown lawn wet with dew with relative ease. Never skipped a beat. Can't speak on durability yet since I've only used it once thus far, which is why I haven't given it 5 stars
Reviewed in the United States on August 30, 2025 by Dave Sobieski
Size: 20 Inch
My husband is happy with the quality of this lawn mower. It cuts close on edges and was easy to trim the grass on the side of our house. He was able to cut the grass low enough that we may only need to mow one more time before winter.
Reviewed in the United States on October 18, 2025 by Maria V
Size: 20inch-144cc-3 position
Was fairly easy to assemble. Came with oil. Primed 3 times then pulled cord to start. Has 3 height adjustment.
Reviewed in the United States on April 5, 2026 by Dave C