#1 Home Improvement Retailer

Internet # 314278218

Model # BG21276

Store SKU # 1005705795

S120 42 in. 22 HP V-Twin Gas Hydrostatic Riding Lawn Mower - California Compliant

Apply Now
$undefined.00 /mo† suggested payments with months† financingApply Now
  • 2.4 Gal. fuel tank cuts 1 acre of flat or slightly hilly land
  • Features 42" Accel Deep Mower Deck and Edge Cutting System
  • Includes gas riding mower, battery, and engine oil
  • View More Details
0 in stock
Free & Easy Returns In Store or Online
Return this item within 30 days of purchase. Read Return Policy
Product Details
Image showing field action shot of John Deere Mower

Easy to Own, Use and Maintain

Best in class ergonomics that is both comfortable and easy to operate.

Image showing John Deere technician

Backed by John Deere Certified Technicians.

Your John Deere dealer is here to answer questions about products, service, parts and more.

Image showing available attachments

For Yard and Lawn Care

Customize your mower with the right attachment for any job.

Image showing engine with easy change filter

Easy Change 30-Second Oil Change System

The John Deere Easy Change 30-Second Oil Change System makes changing the engine oil easy, quick, and clean.

Image showing new easy read fuel gauge

Easy - Read Fuel Gauge

An industry first in this category, the Easy - Read Fuel Gauge is easy to see from the seat.

Image showing new open seat

15" open high back seat

15-in. two-piece seat with an open back​. Increased comfort that is cooler and won’t collect rainwater.​

Image showing front and reverse pedals

Hydrostatic transmission w/side by side pedals

This Industry Exclusive feature provides quick and easy forward and reverse direction changes. Easier maneuvering leads to less time mowing.

Image showing engine on the S120

22 hp John Deere Engine

22-hp (16.4-kW) V-twin engine has plenty of power to handle tough mowing, mulching, and bagging conditions.

Image showing the 42" mowing deck

42" Edge Cutting system

The Edge Cutting System and Accel Deep mower decks are made to process and efficiently disperse more grass.

Image showing cruise control

Cruise control

Cruise control kit allows the operator to set and maintain speed. Ideal for use in mowing on larger properties.

Image showing cut adjustment handle on the mowing deck

Ergonomically designed Height of Cut handle

13 different cutting height options are available. Cutting heights range from 1 to 4 in. in 1/4 in. increments

Image that shows the John Deere MowerPlus app

MowerPlus App

Tracks user’s current mowing session with average mowing speed, area covered, and items such as fuel level and battery health.

Logo that shows tractor was build in Greeneville, TN, USA.

Built in Greeneville, TN US

Made in the USA.

About This Product

Built-in Greeneville TN, the John Deere S120 riding lawn tractor is the premium 42 in. deck model of the 100 series line up. You'll experience more power and smoother operation with a John Deere branded 22 HP V-Twin engine. The ergonomic design of the operator's station is wide and comfortable. Side-by-side foot pedals control the speed and direction of travel, while the cruise control provides a constant mowing speed, good for mowing larger properties. The 42 in. Edge mower deck is time-tested and proven to offer superior cut quality. This mower can easily be equipped to bag or mulch. For easy serviceability, the S120 offers the John Deere Easy Change 30-Second Oil Change System. It's the original All-In-1 oil and oil filter canister, allowing anyone to easily change the tractor oil with no tools required.


  • For questions about service and repair, please call the John Deere Customer Contact Center at 800-537-8233 or reference the Service & Repair document
  • 22 HP V-twin John Deere branded smooth running engine to mow, haul and get it all done
  • 42 in. edge cutting system has a deep deck design to lift grass for a superior cut with a smooth underside to prevent grass buildup
  • Easy read fuel gauge placed on the dash allows customers to easily see how much fuel is left in the tank
  • Mower deck lift lever easily raises and lowers the deck from 1 in. to 4 in. with 13 different cutting heights available
  • Ergonomic operator station is wide and comfortable with easily adjustable controls
  • John Deere easy change 30-second oil change system is under the hood, this all-in-1 oil and oil filter canister, allows anyone to easily change their oil with no tools required
  • Download the MowerPlus app to easily view engine-hours and fuel level
  • 15 in. high-back seat is easily adjustable, with 10 possible positions, adjustments can be made while seated for the perfect fit
  • Cruise control maintains tractor speed for mowing larger areas
  • Powerful (300 cca) battery helps with starts even after lengthy storage
  • Fully welded steel frame and cast iron front axle provides strength and durability with an optional front bumper available for added protection
  • Hassle free ownership a John Deere authorized technician will perform a thorough 10 point pre-delivery inspection on all new John Deere mowers prior to sale
  • Baggers, carts, aerators, spreaders, front blade, mulch kits and snow blowers are sold separately to help with projects around the yard
  • Be sure to register your 2-year bumper to bumper warranty registration and stay connected with your servicing John Deere dealer
  • Engine horsepower and torque information are provided by the engine manufacturer to be used for comparison purposes only, actual operating horsepower and torque will be less; refer to the manufacturer's website for additional information
  • Click here to shop all John Deere products
  • Click here to shop all John Deere Maintenance and Repair Parts
  • Click here for more information on Electronic Recycling Programs
  • Return Policy

Product Information

Internet # 314278218

Model # BG21276

Store SKU # 1005705795


Dimensions: H 44 in, W 55.2 in, D 69.7 in


Assembled Depth (in.)

69.7 in

Assembled Height (in.)

44 in

Assembled Width (in.)

55.2 in

Cutting Width (in.)

42 inches

Front Wheel Size (in.)


Mower Deck Width (in.)

42 in

Rear Wheel Size (in.)


Turning Radius (in.)



Assembly Required


Commercial / Residential


Cutting Options


Deck Material

13 Gauge Steel

Deck Type


Drive Type

Rear-wheel Drive

Engine Displacement (cc)


Engine Make

OEM Branded Engine

Engine Torque (ft.-lb.)


Fuel Tank Capacity (gal.)

2.4 gal

Horsepower (HP)

22 hp

Included with Riding Mowers

Engine Oil

Lawn Mower Type

Front Motor Riding

Maximum Cutting Height (in.)

4 in

Maximum Forward Speed (mph)


Maximum Reverse Speed (mph)


Minimum Cutting Height (in.)

1 in

Mower Size


Number of Blades

2 blades

Number of Cylinders


Number of Deck Wheels


Oil Capacity (oz.)


Power Type


Product Weight (lb.)

444 lb

Recommended Oil Type

SAE 10W-30





Riding Mower Features

Adjustable Cutting Height, Cruise Control, Cup Holder, Deck cleanout, Headlights, Hour Meter, Keyed start, Residential, Reverse Mowing

Size of Yard

1/2 - 1 Acre

Start Type


Terrain Type

Flat with Obstacles, Hilly

Transmission Type


White Glove Service

White Glove Service

Warranty / Certifications

Certifications and Listings

CARB Compliant

Manufacturer Warranty

2 year or 120 hour warranty, whichever occurs first.

Questions & Answers

Q:Can this handle a lawn rollar?
by|Apr 15, 2024
1 Answer
Answer This Question

A:  Q: Can this handle a lawn rollar? = 4/18 = SINCE S120 only has modest "200" Transaxle unit..."towing" anything is NOT A GOOD Practice for long lifetime expectancy...seek S-170-48 at another Mass Outlet for tiny $$ increment to get ROBUST {k-46} instead.

by|Apr 18, 2024
Q:does this mower have power steering
by|Apr 15, 2024
2 Answers
Answer This Question

A:  Q: does this mower have power steering ? = NOPE ! = Buy "300" / "500" or "700" SERIES by J.D., instead of S-120.....each DOES.

by|Apr 16, 2024

A:  Thank you for visiting The Home Depot website. The S120 Lawn Tractor does not have power steering. The steering type is sector and pinion with single drag link and tie rod.

by|Apr 17, 2024
    Q:How does the trailer attach to mower
    by|Apr 11, 2024
    1 Answer
    Answer This Question

    A:  TRAILER HOOKUP ? = 4/12 = AFTER buying your choice of available, extra-cost Rear Receivers, a standard "D" Handle X 5/8 " PIN must be used....available herein at Home Depot Stores, under $10.00.

    by|Apr 12, 2024
    Q:Is there an hour counter?
    by|Apr 10, 2024
    1 Answer
    Answer This Question

    A:  Thanks for contacting The Home Depot website. Yes, there is an hour meter at the operating station of the S120 Lawn Tractor. If you're looking to use a MowerPlus™ Smart Connector that synchronizes the unit's engine hours automatically to a mobile app, you'll need the compatible connector (BUC10929) for the S120 Lawn Tractor. You can find the MowerPlus™ Deluxe Smart Connector (BUC10929) here: https://www.homedepot.com/p/John-Deere-MowerPlus-Deluxe-Smart-Connector-BUC10929/315079388.

    by|Apr 11, 2024
      Showing 1-4 of 234

      Customer Reviews

      4.2 out of 5

      • 4.2 out of 477 reviews
      • 62% recommend this product
      Filter by:
      Showing 1-10 of 477 reviews
      Works, had no problems starting or mowing the waist tall over grown backyard. My backyard is about a 1/2 acre on a slight hill. Using the John Deere tractor mower 100% easier and faster
      • Verified Purchase
      2 found this review helpful
      Overall very pleased!
      This mower has been exceptional thus far after 4 mows and 10 hours. It cuts wonderfully, is a smooth ride and I couldn’t be happier. The only disappointing thing which definitely does not affect its performance is the build quality seems a little cheaper than my 1999 John Deere. Overall I would highly recommend this mower and plan to enjoy it for many years to come.
        • Recommended
        1 found this review helpful
        I like this tractor a lot, it cuts my lawn quickly and evenly which is what it's supposed to do. John Deere makes a very good product, the online lawn repair people like them better than the Cub Cadets that are made by MTD. It would have been a better purchase for me if Home Depot could get the act together in the prep and delivery. I bought this online and the website said next day delivery, not so. The delivery was a week later and I was given a 14 hour delivery window, seriously? After calling I was told that it would be at my house sometime after 6 pm. It arrived in good condition, albeit a bit dirty from sitting outside. Prep wise the tires were way overfilled and the battery terminals were only finger tight. The engine starts right up and idles well. I hope with good maintenance to get many years out of it.
        Response from JohnDeereJun 24, 2023
        We're glad to hear you love your new Lawn Tractor. If you would like to discuss these issues further, we suggest reaching out to The Home Depot Customer Support Line. You can call them at 1 (800) 466-3337.
        • Verified Purchase
        3 found this review helpful
        Maintains 5 acres great
        I use this mower to maintain 5acres. It plows through 4ft of weeds and grass no problem. I've hit some pretty big rocks on accident and just keeps on going. I've owned this mower for about 2 years. Highly recommend.
          • Recommended
          6 found this review helpful
          Broken belt on first cut.
          After researching for many months; I finally decided to get the John Deere S120. I had it delivered to my house and everything was great with the delivery from Home Depot. I only have a half acre but on my very first mow - the S120 didn't even make it half way through before the belt broke. I'm very disappointed - to say the least - with the belts that John Deere are using. I had read another such story but took the chance anyway. Hopefully the next belt will last longer.
          Response from JohnDeereJun 24, 2022
          Thanks for taking the time to share your experience, your feedback is valuable to us.
            15 found this review helpful
            Excellent machine. Plenty of power easy to maneuver and great...
            Excellent machine. Plenty of power easy to maneuver and great turning radius! Very happy with the purchase
            • Verified Purchase
            3 found this review helpful
            Any Deere is a great Deere it's American made Equipment...
            Any Deere is a great Deere it's American made Equipment that's what I love it I would love to do a brand deal John Deere and home Depot
            • Verified Purchase
            2 found this review helpful
            Could have been better
            I paid 2245.00 cash for this tractor. The three front grease fittings thats veey visible was greased. The deck spindles were NOT greased. Thats where its really needed. The steering has a lot of play in it. The reverse while mowing button needs to be re thought to be like my 2 cub cadet xt1's. You turn the key and hold in a switch one time. Thats how it should be. I like the mower but i absolutely hate the 30 second oil change mess. As a former Harley Davidson mechanic i can honestly say the engineering dept at jd must have studied at the three stooges university. I wish i would have bought the s100. Again i say i do like the mower and i love the over size tires on the rear... but jd needs to rethink a lot of this particular unit.
              • Recommended
              33 found this review helpful
              Bad shoulder, no problem
              Switched from push to riding this year after my shoulder surgery. Never used a rider before and was able to learn on my own and use within the first hour of it delivered. Very easy to learn. Highly recommend if you have 1 acre or less and want to mow in 20 minutes. I look forward to getting the attachments to help my lawn be great. Good job John Deere and Home Depot.
              Response from JohnDeereApr 8, 2021
              Thanks for taking the time to share your review!
                • Recommended
                17 found this review helpful
                I’ve had my mower three weeks. I’m 82 years old and LOVE it! It’s effective, fun to ride and puts my lawn needs under my control. I love the cost savings from a landscaping service.
                • Verified Purchase
                Showing 1-10 of 477 reviews