The John Deere S120 is the 42-inch model of the 100 Series. A 22 HP V-Twin delivers smooth power, side-by-side pedals make the hydrostatic drive simple to use, and cruise control holds a steady pace on larger lawns.
Highlights
- 42 in. Edge mower deck: deep deck design for superior cut quality; easily equipped to bag or mulch.
- 22 HP V-Twin engine: John Deere branded Briggs & Stratton engine for more power and smoother operation.
- Hydrostatic transmission: side-by-side foot pedals control speed and direction; cruise control included.
- Easy Change 30-second oil change: all-in-one oil and filter canister, no tools required.
- Comfortable operator station: wide, ergonomic layout with a 15 in. open-back seat and an easy-to-read fuel gauge.
Specifications
| Brand / model | John Deere S120 (100 Series) |
|---|---|
| Type | Gas riding lawn mower |
| Cutting width | 42 in. |
| Deck | Edge deep deck |
| Engine | John Deere branded Briggs & Stratton V-Twin |
| Horsepower | 22 HP (16.4 kW) |
| Transmission | Hydrostatic, side-by-side foot pedals |
| Cruise control | Yes |
| Oil change | Easy Change 30-second system, no tools |
| Seat | 15 in. open-back |
| Fuel gauge | Easy-to-read |
| Bag or mulch | Easily equipped |
Is it the right fit?
A 42-inch riding mower is a great match for lawns of about 1/2 to 1 acre.








