John Deere LA120

The John Deere LA120 lawn mower is the upgraded and more powerful version of the John Deere LA110, while it’s not quite as strong as the John Deere LA130 lawnmower. The JD LA120 gets it’s power from a 2 cylinder Briggs and Stratton engine. This gasoline (petrol) engine is 0.75 liters in size (44 cubic inches). Before mixing with the gasoline in the combustion chamber, the air intake is first filtered through a paper and foam air filter that clears the air of all possible impurities that may disrupt the combustion process. The engine itself produces an impressive 21 hp that drives both the wheels and the mower deck. The engine is started electrically via a 12 volt battery that is charged by a 9 amp alternator.

This Briggs and Stratton engine sits in 4X2 2WD chassis. As the John Deere LA120 is not a particularly massive garden tractor, it comes with a open operator station as standard, which makes operating it during the winter quite difficult if you are living in a particularly cold region. The JD LA120 uses a hydrostatic transmission which makes the lawn mower an automatic with no need for gear changes. Instead of a gear stick, it just has one pedal for going forwards and one from reversing. You can control your speed depending on how hard you press down on the pedal.

While the John Deere LA120 was superseded by the John Deere LA135 in 2008, it is still a highly popular machine that offers a huge amount of options to people who need their lawns cut as well as take care of other residential jobs from clearing snow to raking leaves. If you are someone you owns a JD LA120, then please feel free to leave a review of it below to let others know what they can expect from owning one.

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3 Reviews of the “John Deere LA120”

  1. Steve whisker says:

    Have bought craftsman and simplicity mowers and this mower was the better mower by far. Would buy another one when this one finally croaks.

    Year of Manufacture: 2007
    Pros: This is the 12th season of mowing with this mower.have324 hrs on it. Other than buying a couple of battery’s in 12 years,this mower has been the best one I’ve owned.
    Cons: None
    Attachments: None
    Modifications: None

  2. Roger Smiley says:

    Starts and runs well, drives good o relatively level ground however the last couple of summers the tractor won’t climb the sloped ditch that it used to climb easily before. I changed the drive belt and no difference. It will only now climb the ditch on an angle not straight up like it used to from new. Not sure what the issue is, or if there is an adjustment on the drive belt or not will have to investigate. Have found nothing on this issue on youtube, I haven’t had a heating problem that I know of as it has never stopped driving while driving.

    Year of Manufacture: 2008

  3. Robert McLearen says:

    I’ve had this unit 7 seasons and the trans-axle overheated and stopped the second week of ownership. The dealer changed the oil in the trans-axle and all was well for a few years until it overheated and stopped again After being turned off It will start again in about 30 minutes and run for a while longer until it overheats again. According to what I have read on the net, many many people have had this same problem with the unit. JD will do nothing about the problem as it is way out of warranty, but my feelings are that since many owners have the same problem, that it is like a car recall and should be handled the same way–replace or repair.

    Based on the unit and the lack of understanding from JD, I will not buy another of their products.

    Year of Manufacture: 0
    Pros: Easy to handle and gives a good cut.
    Cons: Trans-axle overheats and unit stops.
    Can’t reach under the deck to lube the joints that are recommended by JD,
    Attachments: Had a mulch attachment installed at purchase and has worked perfectly.
    Modifications: none

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