3-in-1 Versatility
Cut, mulch, or bag clippings effortlessly with a 21-inch reinforced steel deck. Choose mulching for healthier grass or side discharge for fast clearing.
21" 140cc 4-Cycle Briggs & Stratton Engine Gas Push Lawn Mower with 3-in-1 Mulching, Bagging, Side Discharge
SKU:
LSPG-M7
- $435.00
$499.00- $435.00
- Unit price
- per
POWERFUL BRIGGS & STRATTON E550 GAS ENGINE — Delivers reliable, fuel-efficient performance with Prime 'n Pull™ start for easy ignition.
3-IN-1 CUTTING SYSTEM — Switch effortlessly between mulching, bagging, or side discharge to suit your lawn care needs.
21-INCH STEEL CUTTING DECK — Durable and rust-resistant, ideal for small to medium-sized lawns.
6-POSITION HEIGHT ADJUSTMENT — Dual-lever system allows cutting height customization from 1.25" to 3.75".
LARGE 16-GALLON REAR BAG — Holds 50% more clippings than standard bags, reducing the need for frequent emptying.
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.
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Product Overview
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.
Additional Info
Cut, mulch, or bag clippings effortlessly with a 21-inch reinforced steel deck. Choose mulching for healthier grass or side discharge for fast clearing.
Powered by a 140cc engine with Prime 'n Pull™ ignition, this mower starts on the first pull, every time—even after months of storage. No choke, no hassle.
20% lower vibration ensures smooth handling, while the ergonomic grip handle reduces arm fatigue by 30%, making long mowing sessions more comfortable.
The 6-position dual lever allows quick height adjustments for any grass condition. Plus, the rust-proof hardware and reinforced steel deck are built to last season after season.
Reliable Briggs & Stratton Engine
Powered by a 140cc engine with Prime 'n Pull™ ignition, this mower starts on the first pull, every time—even after months of storage. No choke, no hassle.
Smooth & Comfortable Operation
20% lower vibration ensures smooth handling, while the ergonomic grip handle reduces arm fatigue by 30%, making long mowing sessions more comfortable.
Durability & Easy Control
The 6-position dual lever allows quick height adjustments for any grass condition. Plus, the rust-proof hardware and reinforced steel deck are built to last season after season.
1*21-Inch 140cc Gas Powered Push Lawn Mower
Make sure the blade control is engaged and all spark plugs are connected to the spark boot. Use only clean gasoline that’s less than a month old and contains less than 10% ethanol. We recommend using ethanol-free fuel. If the engine hasn’t been primed, do so by consulting the “Operation” section of your product guide. The engine could be flooded. Try waiting a few minutes, then restarting. If problems persist, there may be a blocked fuel line or faulty spark plug. Contact customer support or consult a professional mechanic about replacing parts.
Marks sure your spark plug boot isn’t loose and check to make sure all spark plugs are connected and tight. Run out the existing fuel and replace with new fuel. Use only clean gasoline that’s less than a month old and contains less than 10% ethanol. We recommend using ethanol-free fuel. Clear the vent in the gas cap and check your air cleaner. For cleaning instructions, refer to the “Air Cleaner” section of your product manual.
Your oil level may be too low. Check and refill if needed using 10w-30 or SAE-30. Your air flow may also be restricted. Clean the area around and on top of the engine.
The gap between your spark plugs may be too tight. You may need to adjust.
You may have faulty or fouled sparks plugs. Replace spark plugs and check spark plug gap. If it’s too wide, try adjusting. Also, check your air cleaner. Consult the “Air Cleaner” section of your product manual.
Check your cutting blade. If it is loose, tighten the blade and adaptor. If your blade is bent, it will need to be replaced.
Specs
| Power | Gas |
| Engine Brand | Briggs & Stratton |
| Engine Type | 140cc 4-Cycle (B&S E550) |
| Drive Type | Push |
| Mowing Functions | 3-in-1: Mulching, Bagging, Side Discharge |
| Cutting Width | 21" |
| Grass Bag Capacity | 16 gal. |
| Horsepower | 3 hp |
| Cutting Height | 1.25" - 3.75" |
| Wheel Size (Front/Rear) | 8" / 11" |
| Height Positions | 6 |
| Recommended Oil Type | SAE 30 |
| Deck Material | Steel |
| Start Type | Recoil |
| Recommended For | Up to 1 Acre |
| Fuel Tank Capacity | 27.05 oz |
| Product Height | 15.9" |
| Product Length | 32.8" |
| Product Width | 22.7" |
| Weight | 54 lbs |
| Warranty | 3 Years |
Downloads
User Manual:
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.
Hours: Mon - Fri, 9am - 5pm EST
Email: senix.support@yatusa.com
*Expect a response within 24-48 hours
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