John Deere

John Deere S120 22HP 42" Ride-on Mower

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✓ Free professional assembly and calibration

✓ Free full tank of fuel
✓ Free onsite handover and instruction

✓ $99 flat rate delivery within the RDO Equipment Online Store Mower Delivery Zone (Read more)


The 100 Series Ride-on Mowers combine strength and reliability with yard-friendly simplicity, comfort and control. With a choice of models and a wide range of features and options to choose from, the 100 Series has something for everyone. These robust ride-on mowers are engineered for years of trouble-free service and combine superb cut quality with outstanding ease of use.

The John Deere S120 ride-on mower is the upper tier 42-inch deck model of the 100 Series line up. The ride is comfortable. S120 features a hydrostatic transmission, side-by-side foot pedals, enhanced styling, adjustable controls and 15-in open back seat. The 42-inch Edge™ Cutting System is time-tested and proven to offer superior cut quality and can be easily equipped to bag or mulch. And the John Deere Branded single cylinder engine is 22 HP - plenty of power for up to one acre.

Powerful V-twin engine features full-pressure lubrication for dependability and long life

  • A 16kW (22-hp) V-twin engine has plenty of power and torque to handle tough mowing, mulching, and bagging:
  • V-twin cylinder design for greater torque, lower vibration, and improved sound quality
  • Overhead valves for excellent power and fuel economy
  • Full-pressure lubrication and oil filter for cleaner oil, prolonging engine life and extending the time between oil changes

John Deere 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. Changing the oil is as easy as twisting on a new oil-filled filter. Oil does not need to be drained from the engine.
  • Everyone who uses the John Deere Easy Change system saves time and avoids the mess of a traditional oil change. In the past, many 100 Series Lawn Tractor owners rarely or never got around to changing their engine oil. With the 30-second oil change, even people who previously would not consider changing the oil themselves can easily do it. The Easy Change system is a no-mess, no-fuss solution the competition cannot match.

Frame made of full-length welded steel for reliability

  • The solid one-piece frame is constructed of 12-gauge, 2.66-mm (0.105-in.) steel:
  • Full-length, robotically welded frame design has high-strength steel rails for added strength and long life.
  • One-piece, steel fender deck is bolted to the frame.
  • Cast-iron front axle will not bend
  • The front bumper is included on the S130 and S140. It is available as an optional attachment for the S100, S110, and S120.
  • The CargO Mount system is a combination of front- and rear-mounting points providing convenient and easy installation of the sun canopy, rear bagger, and other attachments.

Hydrostatic transmission gives an infinite choice of ground speeds

  • A Tuff Torq® hydrostatic transmission gives an infinite choice of speeds and makes changing the direction of travel easy. Side-by-side foot pedals control the speed and direction of travel.
  • Automotive-type accelerator controls ensure easy operation.
  • Operator can change direction without lifting foot off the platform.
  • Large pedal surface gives superior operator comfort.
  • Appropriate transmissions are used in each model, depending on rear tire size and tractor performance requirements, to ensure excellent performance and reliability:
  • Tuff Torq TLT200 – S100, S110, S120, S130 and S140

Operator station designed for comfortable operation

  • The operator station is designed for operator comfort and easy operation:
  • Controls are positioned where they are easy to reach and use to control the tractor.
  • The steering wheel is positioned and angled to give the operator plenty of room and steering comfort.
  • The seat is positioned to provide the most comfortable operator position.
  • Controls are easy to see and use.
  • Wide footrest areas with non-slip, anti-vibration floor mats are provided for operator comfort.
  • Operator comfort is enhanced with a 38-cm (15-in.) high-back, two-piece seat with an open back.

Instruments and controls are easy to find and convenient to use

  • The contoured dash has clean, attractive styling.
  • The easy-read fuel gauge shows how much fuel is in the tank and can be seen on the dashboard.
  • Side-by-side foot pedals control the speed and direction of travel.
  • Cruise control is available on the S120 and S130. To engage, lift the cruise lever and hold until the foot is removed from the forward pedal. The cruise control can be released by pushing on the brake pedal or the forward pedal.
  • Mower deck height adjustment. A spring-assisted, ergonomically designed lift lever simplifies adjusting the mower cut height.
  • Parking brake control. The parking brake control is conveniently located on the tractor pedestal for easy access. It holds the brake pedal securely in the locked position.

Serviceability is convenient with an easy-open hood

  • The one-piece hood opens easily to permit checking and servicing the engine.
  • The John Deere Easy Change 30-second oil change system makes changing the engine oil easy, quick, and clean. Changing the oil is as easy as removing the old oil-filled filter and twisting on a new oil-filled filter.
  • Hood will not rust or dent and includes quality headlights.

The Edge™ cutting system gives superior performance

  • The Edge cutting system has been trademarked to emphasise the advantages of the John Deere mower deck designs. They give superior mowing performance, convenience, and reliability.
  • The 107-cm (42-in.) Edge Mower Deck is a two-spindle design with heavy-duty characteristics:
  • StarLock™ blade design. The StarLock blade design keeps the blade bolt at the correct torque for easy removal.
  • Optional blades for difficult mulching or bagging conditions are available.
  • A cut-and-throw, 229-L (6.5-bu) bagger is sold separately and comes with bagging blades. Special bagging blades are not required but they can enhance performance.

Two-year or 120-hour bumper-to-bumper warranty is included

An exclusive 2-year or 120-hour single-source, bumper-to-bumper warranty* is included for all John Deere 100 Series Tractors.

Note: Photos are for illustrative purposes only, deck colours and other features may vary between green and yellow.

100 Series
Deck Size:
107cm (42")
16kW (22hp)
Mowing Area:
Up to 1 Acre
Flat / Some Slopes
Manual 2-Wheel
2 Year / 120 Hour Bumper-to-Bumper Warranty


Product Brochure
Specifications Sheet
Parts Reference Guide

Parts & Attachments