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Internet # 331676841

Model # DW12ABP3RJ039

Store SKU # 1012399530

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21 in. 196cc E-GOV Engine 3-in-1 Gas RWD Self-Propelled Lawn Mower with High Rear Wheels

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$499.00
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  • 21" Rear Wheel Drive Self Propelled Lawn Mower Ideal for 1/2 Acre
  • 196cc DEWALT Engine with Electronically Governed Engine
  • Includes Gas Lawn Mower, Engine Oil, Bagger and Mulch Kit
  • View More Details

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Product Details

About This Product

Maintain properties with this 21 in. 196cc Electronically Governed Engine RWD Self-Propelled 3-in-1 Mower. This 196cc DEWALT electronically governed commercial-grade engine features a cast iron cylinder liner, automatic compression release, and a 3 chamber muffler. Electronically governed engine is engineered to automatically adjust and deliver consistent power when facing thick, heavy grass. Mow at your preferred pace with variable speed self drive. Navigate uneven terrain with rear wheel drive and 11 in. high rear wheels. Features a durable steel deck equipped with 3-in-1 side discharge, mulching, and bagging capabilities with a 2.3 bushel bagger. Quickly adjust the grass height settings to your preference, from 1.25 in. to 3.75 in., with a single lever.

Highlights

  • Commercial-Grade Engine - Maintain your property with a 196cc electronically governed commercial-grade engine featuring a cast iron cylinder liner, automatic compression release, and a 3-chamber muffler.
  • Consistent Power - Electronically governed engine is engineered to automatically adjust and deliver consistent power when facing thick, heavy grass.
  • Control And Traction - Navigate hills or uneven terrain with rear wheel drive and 11 in. high rear wheels.
  • Choose Your Preferred Pace - Select your ideal walking pace with variable speed self drive.
  • Multiple Discharge Options - Steel deck is equipped with 3-in-1 mulching, side discharge, and bagging capabilities.
  • Efficient Clean Up - Collect clippings in a large 2.3 bushel rear bag for a quick clean up or composting.
  • Mulch Kit Included - Help maintain a healthy lawn with the included mulch kit.
  • Return Policy
  • California residents
     see Prop 65 WARNINGS

Product Information

Internet # 331676841

Model # DW12ABP3RJ039

Store SKU # 1012399530

Specifications

Dimensions

Cutting Width (in.)

21 inches

Mower Deck Width (in.)

21 in

Details

Cutting Height Options

6-position

Cutting Options

Bag, Mulch, Side-Discharge

Deck Material

15 Gauge Steel

Drive Type

Rear-wheel Drive

Engine Displacement (cc)

196

Engine Make

Dewalt Engine

Features

Adjustable Cutting Height, Adjustable Handlebar, Adjustable Speed, Assembly Required, Bagger, Mulching Lawn Mower, Residential, Variable Speed

Fuel Tank Capacity (gal.)

.2 gal

Included

Bagger, Engine oil

Lawn Mower Type

Self-Propelled Lawn Mower

Maximum Cutting Height (in.)

3.75 in

Minimum Cutting Height (in.)

1.25 in

Mower Size Type

Standard

Number of Blades

1

Power Type

Gas

Recommended Terrain

Flat, Sloped, Uneven

Returnable

30-Day

Size of Yard

1/4 - 1/2 Acre

Start Type

Pull Cord

Walk Behind Mower Type

Self Propelled

Warranty / Certifications

Manufacturer Warranty

3-Year Limited Warranty

Questions & Answers

I bought my mower on June I have used 4 times and today don’t work anymore
ByOct 18, 2026
1 Answer | 
Answer This Question

Hello Rafael. DeWalt warrants this product against defects and material and workmanship for a period of 3 years from the date of original purchase. Please go to the genuinefactoryparts.com website where you can find DeWalt-authorized service centers. Scroll to the bottom of the homepage and click on "Service Locator" under the "Support" heading. Be sure to have a copy of your proof of purchase which they'll need in order to perform any warranty services. Thank you.

By|Oct 19, 2026


    Need a blade for dewatt
    ByOct 7, 2026
    1 Answer | 
    Answer This Question

    Hello Dewatt. This DeWalt Self-Propelled Lawn Mower's Blade (S-mount, center hole) is Item Number 742P05643 or Item Number 490-100-F142. The blade can be found using either Item Number, and they can be found at Home Depot or on the genuinefactoryparts.com website. Thank you!

    By|Oct 12, 2026


      My Riobi gas mower came with a small bottle of oil how much should i use
      ByOct 1, 2026
      1 Answer | 
      Answer This Question

      Hello Mymower, Please give us a call with your model and serial number and we will get you what you are needing. 1-855-971-2271. Thank you for your question.

      By|Oct 2, 2026


        choke seems very loose and engine won’t start, why is that
        BySep 19, 2026
        1 Answer | 
        Answer This Question

        Hello braud. A loose choke often means the choke lever/linkage is disconnected, broken, or not actually moving the choke plate. If the choke is not closing properly during cold start, the engine may not get the richer fuel mixture it needs and may fail to start. Thanks for your question.

        By|Sep 23, 2026


          Is the side discharge chute inside the box with the lawnmower?
          ByAug 12, 2026
          2 Answers | 
          Answer This Question

          Yes, it has the mulching cover, the discharge chute and the bagger for the back

          By|Aug 17, 2026

            Hello Stephen. The side discharge chute is inside the box with the lawnmower. Thank you for your question.

            By|Aug 17, 2026


              I bought this 2 weeks ago and it had no instructions. How do I get the side discharge to stay open?
              ByAug 3, 2026
              1 Answer | 
              Answer This Question

              Hello Dana. The chute should stay open once installed. Please reach out to us at 1-855-971-2271 for technical assistance! Thank you for your question.

              By|Aug 7, 2026


                What are the replacement air filters
                ByJul 16, 2026
                1 Answer | 
                Answer This Question

                Hello Nancy. Please resubmit your question and include the factory model and serial number of your DeWalt self-propelled lawn mower so we can provide you the correct part number of the air filter. You can find these numbers on a white ID sticker on the blade housing in the area of the rear wheels. The model is 11 characters long and will start with either 11 or 12. Thank you.

                By|Jul 20, 2026


                  Do both rear wheels pull?
                  ByJul 14, 2026
                  1 Answer | 
                  Answer This Question

                  Hello, Joey. This is a RWD model which means both rear wheels are powered. Thank you for your question.

                  By|Jul 14, 2026


                    Viewing 1-8 of 81

                    Customer Reviews

                    3.6 out of 5

                    • 3.6 out of 559 reviews
                    • 36% recommend this product
                    Filter by:
                    Showing 1-10 of 559 reviews
                    If your your on the fence about this lawnmower. JUST BUY IT! YOU WONT BE SORRY!@
                    This mower is frankly a beast! I have a M.S. and walking uphill with my Frontbl wheel lawn wasnt working for me, but the dewalt rear drive d9es an Amazing job for me! It starts very easy no priming and starts with 1 pull!! I purchased at home depot for 267.00 being ex military getting 10 percent off I recommend this dewalt mower!!
                    by
                      • Recommended
                      1 found this review helpful
                      Dead man handle broke on second use
                      DeWalt dead man handle broke in half after the second use. Returned for full refund.
                      by
                      Response from DewaltProductExpertOct 9, 2026
                      Hello The Big O and thank you for taking the time to provide your feedback. I'm sorry you weren't pleased with the 21 in. 196cc E-GOV Engine 3-in-1 Gas RWD Self-Propelled Lawn Mower with High Rear Wheels 12ABP3RJ039. Your feedback is valuable as we take into consideration every piece of feedback that we come across. I will pass this along to our team for review. It is feedback like yours that allows us to make improvements.
                      Thanks, Mike DEWALT.
                        This customer chose to rate the product and not provide text.
                        by
                        • Verified Purchase
                        Bright level real bad
                        Height adjustment notches are plastic and eventually wears down causing the level to switch to the lowest level. Fustrating , I thought buying a DEWALT mower would gave better quality. I have never had a worst experience with a lawn mower. The lawnmower is 1.2 years old.
                        by
                        Response from DewaltProductExpertSep 15, 2026
                        We’re sorry to hear you haven’t been satisfied with your DeWalt equipment. We do take our customers’ opinions very seriously, and the feedback we receive helps us build better products. Please contact us at 1-855-971-1123. Thank you.
                          2 found this review helpful
                          After ordering and receiving the mower. I put it together, oiled and fueled it to use then went to adjust the cut height and found that the first adjustment pin/tin was mangled beyond repair. It is made of plastic! The floor model was high up on a shelf so unable to view. If I had known this part was plastic I would not have purchased it
                          by
                          Response from DewaltProductExpertAug 19, 2026
                          We’re sorry to hear you haven’t been satisfied with your DeWalt equipment. We do take our customers’ opinions very seriously, and the feedback we receive helps us build better products. Please contact us at 1-855-971-1123. Thank you.
                          • Verified Purchase
                          4 found this review helpful
                          RWD no good!!!
                          The RWD keeps malfunctioning! I've cut my grass 4xs and 3xs I've had to fix the drive! They only have 1 bolt to hold the unit on there when it clearly needs 4. So the belt constantly keeps coming off. The unit is so small that it's hard to even fix it or add other bolts or screws in it
                          by
                          Response from DewaltProductExpertAug 19, 2026
                          We’re sorry to hear you haven’t been satisfied with your DeWalt equipment. We do take our customers’ opinions very seriously, and the feedback we receive helps us build better products. Please contact us at 1-855-971-1123. Thank you.
                            3 found this review helpful
                            Absolute Disaster of a Mower. Unreliable, Poorly Designed, and Unsafe.
                            If I could give this mower 0 stars, I would. For a mower costing as much as it does, the quality, reliability, and overall design are completely unacceptable. I originally owned the smaller 2025 model. When this larger 2026 version was released, I traded mine in and paid the difference to upgrade. That was a huge mistake. I have used this mower approximately five times, and here's what I've dealt with already: - The blade broke. The mower came equipped with a blade that was noticeably thinner than what I would expect to see on a mower in this class. - The engine hydrolocked. - The engine then completely failed. After roughly five uses, I now have an expensive mower that doesn't run. - The discharge attachment is incredibly cheap and poorly designed. Under completely normal mowing conditions, it would repeatedly come loose and fall off. An attachment designed specifically for a lawn mower shouldn't fall off simply from using the mower as intended. - The self-propel system is terribly designed. It puts your wrist in an extremely uncomfortable position and makes turning the mower much more difficult than it needs to be. - Mowing on a hill feels genuinely unsafe. Between the awkward self-propel mechanism and the mower's high center of gravity, controlling it on a slope is unnecessarily difficult. - The mower feels extremely top-heavy. Even on a slight angle, it feels like it wants to tip. I should not have to worry about a lawn mower tipping over while mowing an ordinary residential yard. This isn't one isolated problem. It's a combination of poor engineering, cheap components, terrible ergonomics, major reliability problems, and legitimate safety concerns. A mower costing as much as this one does should last for YEARS — not suffer a broken blade, hydrolocking, and complete engine failure within its first handful of uses. Now I'm completely without a functioning mower and paying a lawn service because the expensive mower I just purchased can't make it through five uses. I upgraded to the bigger 2026 model expecting a more capable and improved machine. Instead, I ended up with one of the most disappointing pieces of equipment I've ever purchased. I would absolutely not recommend this mower. Save your money and buy something else. 0/5 stars if that were an option.
                            by
                            Response from DewaltProductExpertAug 11, 2026
                            We’re sorry to hear you haven’t been satisfied with your DeWalt equipment. We do take our customers’ opinions very seriously, and the feedback we receive helps us build better products. Please contact us at 1-855-971-1123. Thank you.
                              7 found this review helpful
                              Not durable, waste of money
                              I bought this 6/16/25. I only used it for places my zero turn couldn't get. The bolt that attaches the blade, snapped. I filed a claim and dewalt opened a ticket but will not respond. Waste of money.
                              by
                              Response from DewaltProductExpertAug 5, 2026
                              We’re sorry to hear you haven’t been satisfied with your DeWalt equipment. We do take our customers’ opinions very seriously, and the feedback we receive helps us build better products. Please contact us at 1-855-971-1123. Thank you.
                                4 found this review helpful
                                Shame on you DeWALT—terrible quality control!
                                I bought this mower expecting DeWALT’s usual commercial-grade reliability, but the quality control on this machine is completely unacceptable. First, the wheel lever adjustment spring snapped and broke after just three months of normal household use. To make matters worse, as I looked closer at the machine, I discovered that several factory screws were cross-threaded and forced into the wrong holes right out of the box. For a premium brand that prides itself on being "Tough," this is a massive disappointment. Having structural components fail and finding basic assembly errors in less than a season of use is ridiculous. DeWALT needs to clean up their manufacturing and quality assurance. I expected much better. Product Info: Model Number: 12ABP3RJ039 Purchased: May 2026
                                by
                                Response from DewaltProductExpertJul 31, 2026
                                We’re sorry to hear you haven’t been satisfied with your DeWalt equipment. We do take our customers’ opinions very seriously, and the feedback we receive helps us build better products. Please contact us at 1-855-971-1123. Thank you.
                                  5 found this review helpful
                                  I do not recomend this mower
                                  I had to take This Dewalt mower back 2 times because parts broke off. Which I was told I would have to deal with Dewalt for anymore problems. What a mistake I made. I should have got a credit and never bought this mower. I would not recomand this mower or Dewalt at this point. Now the blade adapter has broken off. Box says 3 yr warrenty which I would expect from Dewalt. Except this part only has 30 day warrenty. Dewalt referred me to Standley Decker and Craftsman. I guess Dewalt lawn mowers don't have Dewalt parts and they don't want anything to do with customers who have part problems. So much for buying a name Brand. Problem with that, I have been told they don't have that part and don't think they will be getting that part. Which is a big problem. He said he would do more checking and get back to. Well that never happened. I called back spoke with someone else. She agreed to order the blade adaptor part. I asked for a email showing me the part she was going to order to make sure it was correct. Email never came. But I did received 2 pulleys which I don't need. Please think very hard when considering a purchase of this Dewalt gas lawn mower. It does not make good yard art. Nor does it hold up to the Dewalt Brand. They need to stick to selling tools not lawn mowers.
                                  by
                                  Response from DewaltProductExpertJul 27, 2026
                                  We’re sorry to hear you haven’t been satisfied with your DeWalt equipment. We do take our customers’ opinions very seriously, and the feedback we receive helps us build better products. Please contact us at 1-855-971-1123. Thank you.
                                    5 found this review helpful
                                    Showing 1-10 of 559 reviews

                                    Compare Key Features

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                                    Product Snapshot

                                    Built for long-lasting durability and high performance on uneven terrain with powerful 196cc engine.
                                    Designed for effortless use, with self-propelled rear-wheel drive and variable speed to enhance convenience and performance.
                                    Ideal for homeowners wanting variable speed, mulching, and rear-wheel drive for efficient mowing.
                                    Ideal for homeowners wanting reliable power and 3-in-1 cutting, ensuring easy mowing on varied terrain.

                                    Cutting Width

                                    21 in.
                                    22 in.
                                    21 in.
                                    22 in.

                                    Engine Power

                                    196 cc
                                    163 cc
                                    163 cc
                                    150 cc

                                    Variable Speed Control

                                    Mulching Capability

                                    Rear-Wheel Drive