Description
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Easy to Own, Use and Maintain
Best-in-class ergonomics that is both comfortable and easy to operate.
Backed by John Deere Certified Technicians
Your John Deere dealer is here to answer questions about products, service, parts and more.
For Yard and Lawn Care
Customize your mower with the right attachment for any job.
Dent Resistant Composite Hood
Hood is a tough composite material that won’t dent or rust, with openings on the side to let in cooling air.
22 HP John Deere Engine
John Deere 22 HP (16.4-kW) V-Twin engine has plenty of power to handle tough mowing, mulching, and bagging conditions.
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.
Easy-Read Fuel Gauge
An industry first in this category, the Easy-Read Fuel Gauge is easy to see from the seat.
42″ EDGE Cutting System
The EDGE Cutting System and Accel Deep mower decks are made to process and efficiently disperse more grass.
The Right John Deere for Your Yard
Ideal for up to 1 acre of flat or slightly hilly land
Bumper-to-Bumper Warranty
2-year/120-hour warranty supported by your local John Deere Dealership.
MowerPlus App
Tracks user’s current mowing session with average mowing speed, area covered, and items such as fuel level and battery health.
Built in Greeneville, TN
Made in the USA.
Built in Greeneville, TN USA, the John Deere S120 riding lawn mower 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 Briggs & Stratton 22 HP V-Twin engine. The ergonomic design of the operator’s station is wide and comfortable. Side-by-side foot pedals easily 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, with its deep deck design, proven to offer superior cut quality. This mower can easily be equipped to bag or mulch. For easy serviceability, the S120 offers the industry exclusive John Deere Easy Change 30-Second Oil Change System. It’s the original All-In-One oil and oil filter canister, allowing anyone to easily change the oil with no tools required.All John Deere 100 Series Riding Mowers are backed by certified John Deere dealers with a 3-year/120-hour bumper-to-bumper warranty. Ensure to register for your John Deere warranty to cover your investment.
Highlights
- Click here for a complete list of Replacement Parts
- 22 HP V-twin John Deere branded engine has plenty of power to handle mowing, bagging, mulching, hauling
- 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 to 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 industry exclusive 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
- 15 in. high-back seat is easily adjustable, with 10 possible positions, adjustments can be made while seated for the perfect fit
- Powerful (300 cca) battery helps with starts even after lengthy storage
- Included Cruise control maintains tractor speed for mowing larger areas
- 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 with a John Deere authorized professional technician performing a thorough 10-point pre-delivery inspection on all new John Deere mowers prior to sale
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Do more with your John Deere mower with available baggers, carts, aerators, spreaders, mulch kits, front blade, and snow blowers and more! All sold separately to help with projects around the yard, all year long
From the Manufacturer
- SDS
- Replacement Part List
- Service and Repairs
- Warranty
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Use and Care Manual
Dimensions
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Assembled Depth (in.)
69.7 in
Assembled Height (in.)
44.5 in
Assembled Width (in.)
54.9 in
Cutting Width (in.)
42 inches
Front Wheel Size (in.)
15
Mower Deck Width (in.)
42 in
Rear Wheel Size (in.)
20
Turning Radius (in.)
18
Details
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Assembly Required
Yes
Commercial / Residential
Residential
Cutting Options
Bag, Mulch, Side-Discharge
Deck Material
13 Gauge Steel
Deck Type
Stamped
Drive Type
Rear-wheel Drive
Engine Displacement (cc)
724
Engine Make
OEM Branded Engine
Engine Torque (ft.-lb.)
0
Fuel Tank Capacity (gal.)
2.4 gal
Horsepower (HP)
22 hp
Included with Riding Mowers
Engine Oil
Lawn Mower Type
Self-Propelled Lawn Mower
Maximum Cutting Height (in.)
4 in
Maximum Forward Speed (mph)
5.5
Maximum Reverse Speed (mph)
3.2
Minimum Cutting Height (in.)
1 in
Mower Size
Small
Number of Blades
2 blades
Number of Cylinders
V-Twin
Number of Deck Wheels
2
Oil Capacity (oz.)
89.6
Power Type
Gas
Product Weight (lb.)
444 lb
Recommended Oil Type
SAE 10W-30
Refurbished
No
Returnable
30-Day
Riding Mower Features
Adjustable Cutting Height, Cruise Control, Cup Holder, Deck cleanout, Headlights, High Back, Hour Meter, Keyed start, Power Take Off, Residential, Reverse Mowing
Size of Yard
1/2 – 1 Acre
Start Type
Electric
Terrain Type
Flat with Obstacles, Hilly
Transmission Type
Hydrostatic
Warranty / Certifications
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Certifications and Listings
No Certifications or Listings
Manufacturer Warranty
2 year or 120-hour bumper-bumper warranty
Reviews
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