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John Deere S120 42 in. 22 HP V-Twin Gas Hydrostatic Riding Lawn Mower
22 HP V-twin Briggs & Stratton · 42-in Edge™ deck · side-by-side hydro pedals · Ready Start — Deere reliability with real V-twin power.
“Cross-shopped the S100 and the S120 side by side. Went with the V-twin and I'm glad I did — noticeably smoother, quieter, and it doesn't drop RPM in thick spring…”
Curtis W. · Kentucky · verified buyer
“Moved from a 21-in push mower to this and it changed my Saturdays. What used to be 2.5 hours is now 45 minutes. The hydro pedals are stupid easy — no shifting, no…”
Anita R. · Ohio · verified buyer
“My yard has a couple of real slopes and the S100 my neighbor has definitely lugs on them. The S120 V-twin holds RPM the whole way up. Cut is even, no scalping. Ve…”
Devon M. · Pennsylvania · verified buyer
30-day returns · no restocking fee · free freight
Add to your order
Ships free- 22-hp (16.4-kW) Briggs & Stratton® V-twin — smoother, quieter, and more torque than the entry single-cylinder S100
- Ready Start starting system — no choke, no primer, turn the key and go
- 42-in. (107-cm) Edge™ stamped-steel mower deck with 13 cutting positions from 1 in. to 4 in.
- Automatic hydrostatic transaxle with side-by-side foot pedals — no shifting, smooth speed and direction changes
- Spring-assisted hand-grip lever raises and lowers the deck with minimal effort
Authentic John Deere equipment — sold new
Ships factory-sealed in the manufacturer's original crate with keys, manual and warranty card. Never refurbished, never open-box, never grey-market.
- Manufacturer model S120 — verify the specs on the brand's own site
- Manufacturer warranty registered in your name, serviceable at authorized dealers
- Fulfilled from U.S. warehouses (OH · TX · GA · NV) — not shipped from overseas
- 30-day return window from delivery, no restocking fee
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Freight
Full
Warranty
30-Day
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See it in action
The John Deere S120 42 walkaround
Authorized brands we carry
Every machine ships factory-sealed with its manufacturer warranty card and is serviceable at the brand's authorized dealer network nationwide.
Product features
Built to cut, season after season
22-hp (16.4-kW) Briggs & Stratton® V-twin
smoother, quieter, and more torque than the entry single-cylinder S100
Ready Start starting system
no choke, no primer, turn the key and go
42-in. (107-cm) Edge™ stamped-steel mower deck with 13 cutting positions from 1 in. to 4 in.
The step-up S120 lawn tractor — a 22 HP V-twin Briggs & Stratton engine paired with a 42-in. Edge™ stamped-steel deck and a smooth automatic hydrostatic transaxle with side-by-side pedals. 15-in. open-back seat, covered console, Ready Start, and John Deere's 2-year / 120-hour bumper-to-bumper warranty. Assembled in Greeneville, Tennessee.
Automatic hydrostatic transaxle with side-by-side foot pedals
no shifting, smooth speed and direction changes
Spring-assisted hand-grip lever raises and lowers the deck with minimal effort
The step-up S120 lawn tractor — a 22 HP V-twin Briggs & Stratton engine paired with a 42-in. Edge™ stamped-steel deck and a smooth automatic hydrostatic transaxle with side-by-side pedals. 15-in. open-back seat, covered console, Ready Start, and John Deere's 2-year / 120-hour bumper-to-bumper warranty. Assembled in Greeneville, Tennessee.
2.4-gallon fuel tank
longer mowing sessions between fill-ups vs the S100
Technical specs
Specifications
Compare models
John Deere S120 42 vs the lineup
John Deere S120 42
$2,4994.6★This model
- Engine
- 22 HP (16.4 kW) Briggs & Stratton® V-twin, 724 cc
- Deck
- 42 in. (107 cm) Edge™ stamped steel
John Deere S100 42
$1,2994.7★View →
- Engine
- 17.5 HP (13.0 kW) single-cylinder, 500 cc
- Deck
- 42 in. (107 cm) Edge™ stamped steel
Cub Cadet XT1 Enduro
$2,2994.6★View →
- Engine
- Cub Cadet® 547cc single-cylinder with IntelliPOWER® electronic governor
- Deck
- 42 in. stamped 13-gauge steel, twin-blade
Cub Cadet XT1 Enduro
$3,4994.4★View →
- Engine
- Kohler® 7000 Series KT724 V-twin, 747cc, 24 HP
- Deck
- 54 in. AeroForce™ fabricated 11-gauge steel, triple-blade
Cub Cadet XT1 Enduro
$2,9994.3★View →
- Engine
- Kohler® 7000 Series KT724 V-twin, 747cc, 24 HP
- Deck
- 50 in. AeroForce™ fabricated 11-gauge steel, triple-blade
| Model | Price | Engine | Deck | Rating |
|---|---|---|---|---|
| John Deere S120 42(this) | $2,499 | 22 HP (16.4 kW) Briggs & Stratton® V-twin, 724 cc | 42 in. (107 cm) Edge™ stamped steel | 4.6★ |
| John Deere S100 42View → | $1,299 | 17.5 HP (13.0 kW) single-cylinder, 500 cc | 42 in. (107 cm) Edge™ stamped steel | 4.7★ |
| Cub Cadet XT1 EnduroView → | $2,299 | Cub Cadet® 547cc single-cylinder with IntelliPOWER® electronic governor | 42 in. stamped 13-gauge steel, twin-blade | 4.6★ |
| Cub Cadet XT1 EnduroView → | $3,499 | Kohler® 7000 Series KT724 V-twin, 747cc, 24 HP | 54 in. AeroForce™ fabricated 11-gauge steel, triple-blade | 4.4★ |
| Cub Cadet XT1 EnduroView → | $2,999 | Kohler® 7000 Series KT724 V-twin, 747cc, 24 HP | 50 in. AeroForce™ fabricated 11-gauge steel, triple-blade | 4.3★ |
Manuals & support
Full operator manual and parts diagrams included in the crate. Questions before or after delivery? Call our U.S. team at +1 (929) 520-5580.
Shipping & delivery
Free freight. Ships by transport truck, curbside with liftgate. Our carrier schedules your delivery window in advance.
Warranty & returns
2-year / 120-hour bumper-to-bumper plus a 30-day money-back guarantee — buy with zero risk.
4.8
Excellent · 2,132 owner reviews
V-twin was worth the extra $200 over the S100
Cross-shopped the S100 and the S120 side by side. Went with the V-twin and I'm glad I did — noticeably smoother, quieter, and it doesn't drop RPM in thick spring grass. 42-in Edge deck cuts as clean as any Deere I've owned. Home Depot delivered assembled with gas in the tank.
Curtis W. · verified buyer · Kentucky
Perfect step up from a walk-behind
Moved from a 21-in push mower to this and it changed my Saturdays. What used to be 2.5 hours is now 45 minutes. The hydro pedals are stupid easy — no shifting, no clutch, just push and go. Ready Start fires on the first turn every time.
Anita R. · verified buyer · Ohio
22 HP V-twin handles my hills without bogging
My yard has a couple of real slopes and the S100 my neighbor has definitely lugs on them. The S120 V-twin holds RPM the whole way up. Cut is even, no scalping. Very happy I went with the V-twin.
Devon M. · verified buyer · Pennsylvania
2.4 gallon tank is a real quality of life upgrade
My old tractor had a 1.3 gal tank and I was refilling mid-mow every time. The S120's 2.4 gal tank does my whole 1.3 acre yard and still has fuel left. Small thing that makes every mow easier.
Sheila B. · verified buyer · Indiana
Assembled in TN — you can feel the build quality
I like that this is put together in Tennessee. Fit and finish is tight, no rattles, no weird panel gaps. Dealer is 20 minutes away for parts and service. Classic Deere experience for a hair under $2,500.
Marcus H. · verified buyer · Tennessee
Edge deck cuts cleaner than my old MTD
The Edge deck is the star of the show. Twin blades, clean stripes, no clumps even on damp grass. Way better cut than the MTD tractor it replaced. Would buy again in a heartbeat.
Priscilla T. · verified buyer · Virginia
Owners only — we verify against your order before publishing.
Questions
Before you order
Get the John Deere S120 42 for $2,499
Free freight, 2-year / 120-hour bumper-to-bumper, and a 30-day money-back guarantee. Talk to a real person at (929) 520-5580 before you order.
$2,499
from $104/mo · free shipping