#1 Home Improvement Retailer

Internet # 314254115

Model # YF21-SD

20 in. 125 cc 450e Series Briggs and Stratton Gas Walk Behind Push Mower with SideCutting System

Limit 5 per order
  • Grass comb on the front gives a smooth, clean cut every time
  • Wheels easily roll with PVC wrapping
  • Store in smaller spaces with the folding handle
  • View More Details
icon
Free & Easy Returns In Store or Online
Return this item within 30 days of purchase. Read Return Policy
caret

Product Details

Get a powerful mow every time with the Yard Force YF21SD side-discharge lawn mower. This durable tool features Prime 'N Pull technology for an easy start and 11 in. rear wheels and 7 in. front wheels for easy maneuvering on any type of lawn. The grass comb gives you a smooth, clean cut and there are five wheel height positions for the perfect deck cutting height. This mower's 20 in. dual-action blade will last you for years to come with its next-level sharpness.
  • Briggs & Stratton 450E 125CC engine with Prime N Pull E-Z Starting technology
  • 21 in. steel deck with grass comb is strong and durable for reliable service season after season
  • 7 in. front and rear PVC-wrapped wheels roll easily over all terrain
  • Easy-adjust lever, five-position wheel height adjustment from 1.25 in. - 3.75 in.
  • Handle folds in center for more compact storage
  • Includes 20 in. hardened steel blade stays sharp longer for a quality cut throughout the season
  • Assembled in box, just connect upper handle with quick-turn knobs
  • Complete kit includes: side discharge mower, 20 in. hardened steel blade, side discharge chute, engine oil, operator's manual
  • Two-year limited warranty serviced by 12,000 service centers
  • Use fuel stabilizers to maintain your engine and increase the longevity of your mower (not included)
  • Click here for more information on Electronic Recycling Programs
  • Return Policy

Additional Resources

From the Manufacturer

caret

Specifications

Dimensions: H 15 in, W 32 in, D 23 in

Dimensions

Assembled Depth (in.)23 inAssembled Height (in.)15 in
Assembled Width (in.)32 inBlade Length (in.)20 in
Cutting Width (in.)20 inchesFront Wheel Size (in.)7
Mower Deck Width (in.)22 inRear Wheel Height (in.)Low Wheel
Rear Wheel Size (in.)7

Details

Assembly RequiredYesCutting Height Options5-position
Cutting OptionsSide-DischargeDeck Material15 Gauge Steel
Deck TypeStampedEngine Displacement (cc)125
Engine MakeBriggs and Stratton EngineEngine Torque (ft.-lb.)4.5
FeaturesAdjustable Cutting Height, Assembly RequiredFuel Tank Capacity (gal.)0.25 gal
IncludedNo additional items or accessories includedLawn Mower TypePush Mower
Maximum Cutting Height (in.)3.75 inMinimum Cutting Height (in.)1.25 in
Mower Size TypeStandardNumber of Blades1
Number of Handlebar Positions1Oil Capacity (oz.)15
Power TypeGasProduct Weight (lb.)47 lb
Recommended Oil Type10W-30Recommended TerrainFlat, Sloped
RefurbishedNoReturnable30-Day
Size of Yard1/4 - 1/2 AcreStart TypePull Cord
Walk Behind Mower TypeManual Push

Warranty / Certifications

Manufacturer Warranty2 year Limited Manufacturer
caret

Questions & Answers

19Questions
caret
Q:So does this mower have safety features that makes it worthless as a mower such as 1. A clutched blade that prevents you from cutting high or thick grass ?? 2. Carburetor governed so low that you can't cut a normal thick or high lawn ??
by|Jul 16, 2023
1 Answer
Answer This Question

A:  Timothy, the YD21-SD mower has a bailer bar handle that must be engaged for the engine to run and the blade to operate. This is a regulation required on ALL mowers sold in the US. There are some mowers that have a blade clutch system that allows the engine to run without the blade rotating, but this feature is only found in high-end models that are self-propelled. The RPM of the YF21-SD is set at 3600 RPM to generate enough rotation speed and power to cut most types of grasses and conditions.

by|Jul 16, 2023
    caret
    Q:I need to buy a new mower blade for my 20? yard force mower
    by|Jul 9, 2023
    1 Answer
    Answer This Question

    A:  The part number for the blade on the YF21-SD mower is 1253199001

    by|Jul 10, 2023
      caret
      Q:Does it come with engine oil?
      by|Jul 1, 2023
      1 Answer
      Answer This Question

      A:  Hi Timmy, there is a bottle of oil in the box for the first startup of the engine.

      by|Jul 1, 2023
        caret
        Q:Do you have any refurbished lawn mowers?
        by|May 28, 2023
        1 Answer
        Answer This Question

        A:  HI Joanna, we do not sell refurbished lawn mowers at Home Depot.

        by|Jul 5, 2023
          Showing 1-4 of 19
          caret

          Customer Reviews

          4.2 out of 5
          (92)
          • 4.2
            out of 92 reviews
          • 74% recommend this product
          Filter by:
          Showing 1-10 of 92 reviews
          Bad part
          Came with wrong front left wheel assembly, it was marked front right and the wheel would not touch the ground in any position. Very frustrating, no attention to detail. Also cheap plastic everywhere, including gas filler cap. Cheap crap.
          by
            Low cost, big value lawn mower! Exactly the mower I wanted!
            So, I was looking for a low cost, light weight lawn mower. I moved to a house a couple years ago and have been using a lawn service. Well, I decided spending around $1,000 a year on that wasn't worth it; as long as I could find quality, but low cost items to do it myself. Would I like a $600+ fancy mower with self propel and all the goodies? I mean, not really, maybe when I get a bit older. I recall using a mower very similar to this one (in size / shape / features / weight) when I was a kid. Used to mow my moms lawn and some neighbors lawns. If I could do that at 12 years old, I can do it now in my 30's. Another thing that helped me purchase this, was how easy it is to get ready / build. It literally is like 97% built. All I had to do was tighten 4 hand screws to secure the handle, and of course add the oil (which they include) and gas. So, once all setup (in like 5 minutes), I was ready to push the primer 3 times and see what happens when I pull the cord. First pull I was amazed how easy it was; I guess it seemed harder on an old mower when I was a kid. One pull and it started right up; and has started up every start since on the first pull! I've only had it a couple months, so I can't speak of how long it will last. But, it seems sturdy, and I hope it lasts many years. Just a reminder, be sure to replace your oil once a year, and don't use gas that is old (a few weeks is fine, but, once a month I make sure to fully empty my gas can and refill it fresh. I just empty whatever is left into my car, then refill the gas can). This mower is easy to push, even with some of the hills and slants my lawn has. It isn't too loud either. No earplugs needed for me at least. I mean, yeah your neighbors are still going to hear a mower outside. The wheel adjustments are easy to use, and have stayed right where I put them. I like that this is a simple just side eject. A mulcher would be a fine option too (this doesn't mulch, just side ejects). I just didn't want to do any bagging. I'm all about getting a job done with the least work. I honestly had fun and am excited to mow. Probably because it's been so many years, that may wear off after a while lol. But, to sum it all up... This mower works exactly as I expected. No surprises, no cons. If this is in your top few choices for a mower in this price range, just get this one. I also made a video review of this mower. Just search YouTube for, "Earthling1984 Lawn Mower Review"
            by
            • Verified Purchase
            • Recommended
            11 found this review helpful
            It was very easy for me to put together and isn’t terribly heavy. I added some oil and gasoline; pumped the bulb 3 times and it started right up. Does a good job. It is a bit of a struggle for me to adjust the height (Female with a bad shoulder). Love it otherwise.
            by
            • Verified Purchase
            Starts really easy so far! I Love it so far!!!
            by
            • Verified Purchase
            easy to put together put gas in pushed primer 5 times , started in just 3 cranks , cut grass very nice
            by
            • Verified Purchase
            It works great. Very smooth and cuts grass right. Doesn’t leave it choppy. Will recommend to others.
            by
            • Verified Purchase
            by
            • Verified Purchase
            by
            • Verified Purchase
            by
            • Verified Purchase
            Just what I needed for a small yard.
            by
            • Verified Purchase
            Showing 1-10 of 92 reviews

            Compare Similar Items

            current product

            Features

            Adjustable Cutting Height, Assembly Required

            No Additional Features

            Adjustable Cutting Height, Adjustable Handlebar, Bagger, Foldable handle, Mulching Lawn Mower, Rust resistant deck, Single-lever height adjustment

            Adjustable Cutting Height, Adjustable Handlebar, Bagger, Mulching Lawn Mower, Residential

            Size of Yard

            1/4 - 1/2 Acre

            1/4 Acre or Less

            1/4 - 1/2 Acre

            1/4 Acre or Less

            Cutting Width (in.)

            20 inches

            20 inches

            21 inches

            21 inches

            Rear Wheel Height (in.)

            Low Wheel

            Low Wheel

            High Wheel

            High Wheel

            Engine Make

            Briggs and Stratton Engine

            Briggs and Stratton Engine

            OEM Branded Engine

            Briggs and Stratton Engine