BILT HARD 21 Inch Lawn Mower Review

Gas Powered, 4-Cycle 170cc Engine, 3-in-1 with Bagging, Mulching & Side Discharge, Adjustable 10-Positions Cutting Height


Final Score

4.2 / 5 from 227 users

BILT HARD 21 Inch Lawn Mower | Tools Official
BILT HARD 21 Inch Lawn Mower | Tools Official
BILT HARD 21 Inch Lawn Mower | Tools Official


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We spent 7.9 hours reading reviews from customers and experts. In summary, here's what users think:

8 reasons to buy

  • Customers have reported that the assembly process for the BILT HARD 21 Inch Lawn Mower is straightforward and can be completed with minimal effort. (16 reviews)

  • The mower starts easily, providing convenience and saving time for users who want to get started with their lawn care tasks quickly. (14 reviews)

  • Several reviews mention that the mower offers good value for money, performing well without breaking the bank. (14 reviews)

    • “for less then half price someone is going to get a great mower used only three times.”

    • “Good value”

    • “it is simple, powerful, inexpensive”

    • “Value for money”

    • “an 80 inch mower for that amount of money. The satisfaction is Priceless”

    • “This sander came with extra discs and belts (all at a lower price than others with no extras)”

    • “I found that this is a great value for the money.”

    • “I got the cheapest one. I'm not disappointed.”

    • “this one is good value for the money”

    • “Good Sander for the money”

    • “Great for the money, very generous with extra sandpaper”

    • “Great product for the $”

    • “Great sander for the money”

    • “It is the same design as much more expensive models, with same specs for the motor, just painted with a different color scheme.”

  • The mower is equipped with a robust 170cc engine that provides ample power for cutting through grass effectively. (12 reviews)

    • “Very powerful 170cc mower.”

    • “The engine is nice it's on par with predator. It's just a generic branded 170cc Chinese motor.”

    • “If you are/were a fan of mowers with big engines, little plastic, and easy to maneuver, this mower is for you.”

    • “the motors are strong at 170cc”

    • “It's well built and reasonably powerful.”

    • “Plenty of power for my use.”

    • “Motor seem to be strong enough”

  • The BILT HARD 21 Inch Lawn Mower, despite its power, is noted to be lightweight, making it easier to maneuver and handle compared to heavier models. (4 reviews)

  • The sharp blade of the mower ensures a smooth and even cut, leaving the lawn looking well groomed. (4 reviews)

  • The mower features an easy-to-use height adjustment system, allowing users to change the blade height quickly and efficiently. (4 reviews)

    • “Super easy to adjust blade height.”

    • “I love the adjustable height wheels by using one lever”

    • “The height adjustment is brilliant!”

    • “the height adjustment feature is the best”

  • Aside from cutting grass, the mower also has the ability to mulch leaves, adding to its versatility. (1 review)

    • “Not only cuts grass well, but it also picks up and mulches leaves very well.”

3 reasons not to buy

  • Some customers expressed disappointment that the BILT HARD 21 Inch Lawn Mower did not include a starter bottle of engine oil, which is commonly provided with most lawn mower models. (4 reviews)

    • “Then I realized I had to buy engine oil (most models come with a starter bottle-maybe that can't be shipped?)”

    • “No oil was included and none a!ready in crankcase I discovered.”

    • “The mower shipped without oil.”

    • “Mostly mower comes with engine oil. But this doesn't. I had to buy engine oil right after assemble the mower.”

  • A review mentioned that the mower would run for a short period and then shut off, requiring time to restart, which could indicate reliability issues. (4 reviews)

    • “the mower will make a pass or so across the yard then shuts off. Sometimes it will restart immediately and sometimes you have to let it set for a while before it will start.”

    • “A month ago the lawnmower cease turning over. It immediately shuts off and the cord is not completely retracting.”

    • “It also stalls out constantly.”

    • “After two months of using the mower wouldn’t start without going through a length process. After I turned the mower off the pull cord wouldn’t pull. It was frozen in place. The only way I could get the pull cord to free up was to remove the spark plug and manually rotate the blade underneath. After turning the mower blade four to five turns the compression would release reinstall the spark plug and crack it up. However every time I stopped the mower I would have to repeat the process. And, today, 23 July it quit altogether.”

  • A customer reported that the front wheel and axle came off during use, which caused damage to the blade and raised concerns about the mower's build quality. (3 reviews)

    • “First time using the mower the front wheel and axle came off and got lodged in the blade.”

    • “the front right wheel just popped off and won't go back on”

    • “The left front wheel was bent on arrival. This subsequently caused a pulling drift the device.”

Bottom Line

Need a tough, easy-to-use lawn mower without spending a fortune? The BILT HARD 21 Inch Lawn Mower is your buddy. It's a breeze to put together and fires up fast, saving you time when tackling yard work. With a strong 170cc engine, it slices through grass with ease, yet it's light enough to push around. It offers a clean cut and can mulch leaves, too. Adjusting the cutting height is a snap. Just note, it doesn't come with engine oil, and a few folks had hiccups with reliability and build. But overall, it's a solid choice for keeping your lawn sharp.


Cutting Width (in)21 inch
FeaturesRear Discharge, Mulching, Bagging, Side Discharge
Max Cutting Height3.75"
Min Cutting Height1.2"
Power SourceGas
CategoryPush Mowers
Warranty90 Days
Weight57.8 pounds

Video Reviews

Special Features

  • Powerful 170cc OHV Engine: This mower has a strong engine that can handle tough grass, making your job easier.
  • 3-in-1 Mowing Capabilities: You can choose to chop up the grass to feed your lawn, throw it out the side, or catch it in a bag as you mow.
  • 21-Inch Steel Mowing Deck: The wide blade cuts a big strip of grass, so you finish mowing your lawn faster.
  • Single Lever Height Adjustment: You can change how short you cut the grass with just one simple move. No need to mess with each wheel.
  • 10-Position Height Customization: Offers many height settings to get your grass looking just the way you want.
  • Comfort-Driven Design: The mower is comfy to push around, with a handle that's easy on your hands and wheels that roll smoothly.
  • No Choke, No Primer Starting: It's easy to get started—just pull the cord and go, without fussing with extra buttons or levers.
  • Durable Construction: The mower's blade is made tough, so it stays sharp and works well for a long time.
  • 90-Day Warranty: If something goes wrong because it's not made right, you've got three months to get help fixing it.
  • User-Friendly Operation: This mower is made to be easy to use, so you can take care of your lawn without a headache.


  • Q:

    What type of backing is used on the disc sander for finer grit applications?

  • A:

    The effectiveness of the sanding process will vary based on the sandpaper chosen, with options ranging from finer to coarser grits.

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