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    • Classic LM 21SW - 911194
      Classic LM 21SW - 911194
    • Classic LM 21S - 911193
      Classic LM 21S - 911193
  • You will comfortably roll right along with this walk behind mower…thanks to an ergonomically designed multi-position handlebar that reduces wrist and hand fatigue…use the adjustment brackets to easily dial in one of six cutting heights for a professionally manicured look…to keep you rolling…the mower’s baked-on powder coated finish resists the effects of moisture, fertilizers and chemicals for years of reliable performance…it’s all right here…to dependably cut all your grass out there.​

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3 Model(s) Classic LM 21 Classic LM 21 S Classic LM 21 SW
3.66 of 5 (120 Reviews)
4.41 of 5 (27 Reviews)
4 of 5 (13 Reviews)
Model #
Cutting Width
Cutting Heights
1" - 3.25"1" - 3.25"1" - 3.25"
Cutting Positions
Engine Type
Kohler® XT-7.75Kawasaki® FJ180VKawasaki® FJ180V
Engine Rating
N/A (173cc)N/A (179cc)N/A (179cc)
Drive System
PushInfi-speed® Variable speed drive - Disc-O-MaticInfi-speed® Variable speed drive - Disc-O-Matic
Fuel Capacity
0.37 Gallon (1.4L)0.53 Gallon (2L)0.53 Gallon (2L)
Ground Speed
N/A4 mph4 mph
Deck Material
14 ga14 ga14 ga
Deck Construction
Product Warranty
3-Year Limited Consumer3-Year Limited Consumer3-Year Limited Consumer
  Classic LM 21 Classic LM 21 S Classic LM 21 SW
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  • Lawn Dethatcher

    Lawn Dethatcher

    Over time your lawn will accumulate a layer of thatch (old grass clippings, dead roots and other small debris). The Ariens Dethatcher combs thatch and clippings to the surface where they can easily be bagged or re-mulched.

    Fits Models: 911170, 911193, 911194

  • Mulch Master Plug

    Mulch Master Plug

    Use the Ariens 21 in. Mulch Master Plug for Classic Walk-Behind Lawn Mowers to close off the rear discharge opening of your mower. This creates a cutting chamber that shreds grass into tiny clippings that help feed your lawn and keep it neat and clean.

    Fits Models: 911170, 911193, 911194

  • Rear Bagger Kit

    Rear Bagger Kit

    Baggers are the perfect addition to any walk behind mower when the grass is too tall to mulch or when you need to dispose of the lawn clippings fast. The large capacity bag quickly mounts to your mower.

    Fits Models: 911170, 911193, 911194

  • Mulching Kit

    Mulching Kit

    Mulching Kit for Classic Walk-Behind Lawn Mowers helps you feed your lawn and keep it looking sharp as you mow. The bit's baffles fit underneath the deck to form cutting chambers for each blade to cut grass into tiny shreds.

    Fits Models: 911170, 911193, 911194

  • Leaf Shredder Kit

    Leaf Shredder Kit

    The Ariens 21 in. Leaf-Shredder Kit is an easy-to-install accessory that shreds leaves and debris to make composting and disposal convenient.

    Fits Models: 911170, 911193, 911194

  • Straight Axle Conversion Kit

    Straight Axle Conversion Kit

    Tranform your front swivel wheels into a straight axle. This easy to install accessory is designed to fit on Ariens 21 In. Classic Walk Behind Lawn Mowers with the front swivel wheel design.

    Fits Models: 911170, 911193, 911194

  • Swivel Wheel Kit

    Swivel Wheel Kit

    The Ariens Swivel Wheel Kit for Ariens 21 in. Classic Walk-Behind Lawn Mowers transforms a conventional walk-behind mower into a zero-radius machine. This kit is designed to help make mowing the yard an easier, less stressful job.

    Fits Models: 911170, 911193, 911194

  • Bag-N-Drag


    The Ariens Bag and Drag Kit for Walk-Behind Lawn Mowers helps you transport and dispose yard clippings conveniently. The bag-and-drag assembly features an attached wheel for easy movement when the bag becomes too heavy to lift.

    Fits Models: 911170, 911193, 911194

  • Walk Behind Lawn Mower cover

    Walk Behind Lawn Mower cover

    Protect your mower with this durable cover to keep the weather off your machine.​

    Fits Models: 911170, 911193, 911194

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