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Model#: YMSN12A-A03M700

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Yard Machines 12A-A03M700 140cc Gas 21 in. 2-in-1 Self-Propelled Lawn Mower

Model#: YMSN12A-A03M700
This item is no longer available.
It has been replaced by the YMSN12A-A0BE700.
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For a lawn mower that delivers reliable performance, look no further than Yard Machine's 12A-A03M700 140cc Gas 21 in. 2-in-1 Self-Propelled Lawn Mower. Featuring a rugged Briggs & Stratton 140cc engine, the 12A-A03M700 provides substantial cutting performance with a 21 in. wide cutting path for increased cutting capacity. For increased durability, the 12A-A03M700 features a steel cutting deck with height positions from 1-1/4 in. to 3-3/4 in. to get the perfect cutting height for the job, and features both side discharge and mulching capabilities for your choice of clean up. The 12A-A03M700 also features a convenient self-propelling mechanism for easier traversal and maneuvering across rougher lawns.
  • 2-in-1 capabilities - side discharge and mulching
  • Powerful Briggs & Stratton 158cc engine delivers reliable cutting performance
  • 21 in. wide cutting path for increased cutting capacity
  • Durable steel cutting deck
  • Adjustable height positions from 1-1/4 in. up to 3-3/4 in.
  • Self-propelled mechanism for easier maneuvering and traversing lawns
  • 140cc Gas 21 in. 2-in-1 Self-Propelled Lawn Mower - 12A-A03M700
  • Side Discharge Chute
  • Mulch Plug
  • Owner's Manual


Length: 36.625 in.
Width: 24 in.
Height: 17.75 in.
Weight: 77 lbs.
Cutting Height (Max.): 3-3/4 in.
Cutting Height (Min.): 1-1/4 in.
Cutting Height Settings: 6
Cutting Path: 21 in.
Deck Material: Steel
Discharge Settings: Side
Drive System: Manual
Engine Displacement: 158cc
Engine Make: Briggs & Stratton
Mulching Capability: Yes
Starting System: Recoil
Wheel Size (Front): 8 in.
Wheel Size (Rear): 8 in.


Product Reviews


by PowerReviews

(based on 1 review)

Reviewed by 1 customer

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(4 of 4 customers found this review helpful)


Yard Machine

By Retired

from Round Rock, TX

About Me Do-It-Yourself

Verified Buyer


  • Adjustable Cut-Lengths
  • Easy to Push & Steer
  • Lightweight


    Best Uses

    • Small Lawns

    good for the price.

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    Questions & Answers

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    get answers from real customers and in-house experts with AnswerBox.

    2 Questions | 2 Answers
    Displaying questions 1-2
    • Q:

      The ifo lists 2 different size engines, 140cc and 158cc. Which is it? Also is the self propelling feature on all the time or can it be disengaged?
      Asked on 6/29/2013 by Jim from Holly Ridge NC

      1 answer

      • Staff Reviewer


        The mower has a Briggs & Stratton 140cc engine. Yes, the mower can operate with out the self propelling feature.

        Answered on 7/1/2013 by Ken from Atlanta, GA
    • Q:

      Does it have a deck washout port?
      Asked on 10/14/2012 by JennieBart

      1 answer



        This mower does not include that feature.

        Answered on 10/16/2012 by Nate from Atlanta
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