20 HP V-Twin power, 42-in. Edge™ mower deck, and the John Deere Easy Change™ 30-second oil change system. Smooth, quiet, and easy to maintain.
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See It In Action
Real walkarounds, expert reviews and buyer's guides — everything you need to see the S120 before you buy.
Product Features
The John Deere Easy Change™ 30-second oil change system makes changing the engine oil as easy as twisting on a new oil-filled filter. It's simple, quick, and clean — no draining, no mess, no funnels. Every S120 comes with it standard.
The Kanzaki® Tuff Torq® hydrostatic transmission offers an infinite choice of speeds — side-by-side foot pedals control speed and direction so you can maneuver with precision without shifting or lifting your foot off the platform.
The S120 is the perfect companion for property care tasks. Use a bagger to collect clippings and leaves, transport mulch with a cart, or add a snow blower and weather enclosure for winter — every John Deere attachment is tested for compatibility.
A 42-in. stamped-steel Edge™ Mower Deck delivers a smooth, high-quality cut in a nimble footprint that gets through gates and around trees. Two high-lift blades and a deep-dome design lift grass for a clean, level cut — side discharge standard, bagger optional.
Technical Specs
*Warranty term limited to years or hours used, whichever comes first. Specifications based on published information and subject to change without notice.
Compare Models
| Model | Price | Power | Deck / Cut | Drive | Weight |
|---|---|---|---|---|---|
 S100View → | $1,099 | 17.5 HP | 42" | Hydro | 455 lb |
 S110View → | $1,199 | 19 HP | 42" | Hydro | 487 lb |
| S120(this) | $1,249 | 20 HP V-Twin | 42" | Hydro | 487 lb |
 S130View → | $1,299 | 22 HP V-Twin | 42" | Hydro | 490 lb |
 S140View → | $1,399 | 22 HP V-Twin | 48" | Hydro | 504 lb |
Full John Deere operator's manual and 100-Series product brochure ship digitally with your order.
Free freight to the lower 48. Delivered curbside with liftgate — driver schedules the appointment in advance.
Backed by the John Deere 2-year / 120-hour bumper-to-bumper limited warranty on new equipment.
4.6
214 verified owner reviews
Dan H.
Lancaster, PA
The V-Twin on the S120 makes a real difference on my hilly 1.5 acres. Cuts my mowing time in half compared to my old push mower. Easy Change oil filter is genius — took me literally 30 seconds.
Verified owner
Maria G.
Roanoke, VA
Replaced my old LA110 with the S120 and it is quieter, smoother, and starts every single time on the first turn. The 42" deck fits my gates perfectly. Delivered fully assembled — I was mowing 20 minutes later.
Verified owner
Tom K.
Warren County, IA
Had my S120 for a full season now and am very happy. Handles like a champ, comfortable seat, and the deck gives me a beautiful, level cut every time. The extra HP over the S110 is worth every penny.
Verified owner
Rob M.
Bend, OR
Bought the S120 after comparing to the competition and I'm glad I did. Cuts well, easy to steer, and the fit-and-finish is what you expect from Deere. Would love cruise control but for the price it's hard to beat.
Verified owner
20 HP V-Twin has plenty of power for my property. The Easy Change oil system saved me a trip to the dealer and a mess in the garage. Highly recommend.
— GregW · 3 months ago · Verified
Compared to my old Craftsman, the S120 feels like a Cadillac. Very quiet muffler, smooth pedals, comfortable seat. I can mow for hours without feeling beat up.
— SunshineJoe · 7 months ago · Verified
First full season with the S120 and no issues. Regular maintenance is a breeze. The 42" deck fits perfectly through my gates and the hydrostatic drive is butter smooth.
— JD400 · a year ago · Verified
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