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21'' 144 cc Gas-Powered 4-Stroke Engine Push Lawn Mower, 3-in-1 Design, Steel Deck, 6-Level 1.25''-3.75'' Cutting Height, with 1.7 Bushels Grass Bag LSPG-M14

Support: 3-Year Warranty;
SKU: LSPG-M14
$399.00
$399.00
$409.00
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Powerful & Reliable 144cc OHV Engine Powered by a reliable 4-stroke OHV gas engine designed for longer life, low vibration, and easy maintenance. Delivers 3.4 HP and 5.8 ft-lb of torque.

Effortless 1/3 Acre Maintenance  The 21-inch cutting width, combined with a durable low-carbon & high-strength steel deck, makes this gas lawn mower a breeze to use. Effortlessly tackle 1/3-acre yards and enjoy a flawless cut every time.

1.25''-3.75'' Cutting Height Dual-lever height adjustment offers 6 positions, 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.

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.

What's Included: 21'' gas 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 3-year limited warranty for your peace of mind.

Warranty: 2-Year Warranty

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21'' 144 cc Gas-Powered 4-Stroke Engine Push Lawn Mower, 3-in-1 Design, Steel Deck, 6-Level 1.25''-3.75'' Cutting Height, with 1.7 Bushels Grass Bag LSPG-M14

21'' 144 cc Gas-Powered 4-Stroke Engine Push Lawn Mower, 3-in-1 Design, Steel Deck, 6-Level 1.25''-3.75'' Cutting Height, with 1.7 Bushels Grass Bag LSPG-M14

$409.00 $399.00

21'' 144 cc Gas-Powered 4-Stroke Engine Push Lawn Mower, 3-in-1 Design, Steel Deck, 6-Level 1.25''-3.75'' Cutting Height, with 1.7 Bushels Grass Bag LSPG-M14

$409.00 $399.00

Product Overview

Keep your yard looking pristine with the SENIX LSPG-M14 Gas Lawn Mower. Engineered with a powerful 144cc 4-cycle engine and a heavy-duty 21-inch steel deck, this mower delivers the muscle and reliability needed for a clean, professional cut every time. Designed for ultimate versatility, its 3-in-1 capability lets you mulch, rear-bag, or side-discharge effortlessly. With a 6-position dual-lever height adjustment (1.25"–3.75") and smooth-rolling high rear wheels (8" front / 11" rear), maneuvering through thick grass and uneven terrain is a breeze. Upgrade your lawn care routine today!

Additional Info

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Recommended Lawn Size Small to medium lawns
Cutting Width 20 in
Engine 144cc 4-cycle
Drive Type Push
Mowing Functions Side discharge
Cutting Height 1.35–3.15 in, 3 positions
Grass Bag Not included
Tool Weight 39.3 lb
Best For Simple, lightweight mowing
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Recommended Lawn Size Medium to large lawns
Cutting Width 21 in
Engine 144cc 4-cycle
Drive Type Push
Mowing Functions 2-in-1: Mulching & side discharge
Cutting Height 1.25–3.75 in, 6 positions
Grass Bag Not included
Tool Weight 46 lb
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YOU'RE VIEWING 21-Inch 144cc 3-in-1 Gas Push Mower

21-Inch 144cc 3-in-1 Gas Push Mower

LSPG-M14

$399.00

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Recommended Lawn Size Up to 1/3 acre
Cutting Width 21 in
Engine 144cc 4-cycle OHV
Drive Type Push
Mowing Functions 3-in-1: Mulching, bagging & side discharge
Cutting Height 1.25–3.75 in, 6 positions
Grass Bag 1.7-bushel bag included
Tool Weight 54 lb
Best For Bagging versatility & uneven terrain

Yes. The SENIX LSPG-M14 features a 144cc 4-cycle OHV engine and a 21-inch cutting width, making it a practical choice for small to medium-sized residential lawns. It's designed for yards up to 1/3 acre under typical mowing conditions. Its durable steel deck and wide cutting path help you cover more ground with fewer passes, while the compact push-mower design makes everyday lawn maintenance convenient.

The SENIX LSPG-M14 is a manual push mower, not a self-propelled model. It weighs approximately 54 lbs without fuel and features 8-inch front wheels and 11-inch rear wheels for improved maneuverability. Its high-wheel design helps navigate uneven lawns and obstacles. It's best suited for homeowners who prefer a straightforward push mower and can comfortably handle the pushing effort.

Yes. The SENIX LSPG-M14 features a 144cc OHV engine delivering a rated 3.4 HP and 5.8 ft-lb of torque for routine mowing and moderately thick grass. Its 21-inch steel cutting deck provides reliable performance for residential lawn maintenance. For tall or overgrown grass, raise the cutting height, reduce your walking speed, and make additional passes as needed. Avoid mowing wet grass for better cutting results.

Yes. The SENIX LSPG-M14 features a 3-in-1 mowing system with mulching, rear bagging, and side discharge. Mulching returns finely cut grass clippings to your lawn, rear bagging collects clippings in the included 1.7-bushel grass bag, and side discharge helps manage longer grass. The mower includes the necessary mulching and discharge components, allowing you to choose the best mowing method for your lawn.

Yes. The SENIX LSPG-M14 offers six cutting-height positions ranging from 1.25 to 3.75 inches, allowing you to adjust the blade height for different grass types and seasonal conditions. Use a higher setting during hot or dry weather to help protect your lawn. For healthier grass, avoid removing more than one-third of the grass blade in a single pass. Always stop the engine before adjusting the cutting height.

No. The SENIX LSPG-M14 uses a 144cc 4-cycle OHV engine that runs on unleaded gasoline without mixing gas and engine oil. Engine oil is added separately, and a bottle of oil is included for initial setup. The owner's manual specifies SAE 30 engine oil for suitable operating temperatures. Always check the oil level with the dipstick before starting, and follow the manual's recommendations for fuel and oil.

The SENIX LSPG-M14 requires basic handle and grass bag assembly before first use. It features a primer bulb and recoil starter for straightforward engine starting. Add the recommended engine oil and fresh gasoline, then press the primer bulb three times for a cold start. Hold the blade control against the handle and pull the starter rope as directed in the owner's manual. Proper setup and regular maintenance help support reliable starting.

The SENIX LSPG-M14 requires regular engine oil checks, periodic oil changes, air filter cleaning, spark plug inspection, and blade maintenance. Clean grass clippings from the cutting deck after mowing and inspect the wheels and height adjustment mechanisms regularly. Its foldable handle helps save storage space in a garage or shed. Always follow the owner's manual for proper fuel storage, maintenance intervals, and safe handling.

Specs

Power Gas
Engine Type 144cc 4-Cycle
Power & Torque 3.4 HP / 5.8 ft-lb
Fuel Tank Capacity 27.05 oz
Start Type Recoil Start
Deck Material 14-Gauge Durable Steel Deck
Cutting Width 21''
Blade Speed 3,200 RPM
Mowing Functions 3-in-1: Side Discharge, Mulching & Rear Bagging
Handle Type Ergonomic, Foldable & Space-Saving Design
Grass Catcher Capacity 1.7 Bushels
Height Adjustment 6-Position Dual-Lever Adjustment
Cutting Height 1.25" - 3.75"
Drive Type Push
Front Wheel Size 8"
Rear Wheel Size 11"
Net Weight 54 lbs
Dimensions 32.8" (L) x 22.7" (W) x 15.9" (H)
Warranty 2-Year

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Product Support

Warranty:

2 Year Limited

Support:

If you have a question about your product, reach out to our SENIX support team. We will follow up with you via your preferred contact method within 24-48 hours.

Phone: +1.800.261.3981

Hours: Mon - Fri, 9am - 5pm EST

Email: senix.support@yatusa.com

*Expect a response within 24-48 hours

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