2024 John Deere S120

Powerful engine features full-pressure lubrication for long life

• Electronic ignition for fast starts
• Spring-return feature to ensure the operator will not mistakenly leave the throttle lever in the choke position
• Cast-iron cylinder liner for long engine life
• Overhead valves for excellent power and fuel economy
• Anti-vibration system
• Full-pressure lubrication and oil filter for cleaner oil, prolonging engine life, and extending the time between oil changes
  • More effective when operating the tractor on an incline
• Large fuel filter for trouble-free operation
• The capacity is 2.4 U.S. gal. (9.1 L).
• The fuel filler opening is conveniently located under the seat. 
  • Filling the tank without spilling is easy.
  • A tethered fuel tank cap is more convenient.
  • The sealed fuel cap helps keep vapors inside the tank.

Frame made of full-length welded steel for reliability

The solid one-piece frame is constructed of 12-gauge, 0.105-in. (2.66-mm) 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.
• Automotive-like steering system with sector and pinion steering gears and single drag link with a tie rod provides a very strong, low-effort, and tight-turning system.
• Three grease fittings, on both steering spindles and center pivot, allow for regular lubrication to help maintain easy steering and minimize wear.
• Large, 0.75-in. (1.9-cm) diameter wheel spindles provide excellent durability.
• Additional front-end protection
• Attractive, bold style

Snow removal is a strength of lawn tractors

An advantage of lawn tractors is their ability to use equipment for snow removal. Lawn tractor owners can add a John Deere snow blower or front blade to make quick work of moving snow whenever the need arises. Weather enclosure and tire-chain attachments add comfort and performance.
Equipment available for snow removal includes:

• 44-in. (112-cm) Snow Blower
• 46-in. (117-cm) Front Blade
• Tire chains or TerraGrip traction belts
• Weather enclosure
• Weights

Hydrostatic transmission gives an infinite choice of ground speeds

A Kanzaki® 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.

Hydrostatic transmission

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, S140, and S160
• Tuff Torq K46 - S170 and S180

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 easy to use to control the tractor.
• Steering wheel is positioned and angled to give the operator plenty of room and steering comfort.
• Seat is positioned to provide the most comfortable operator position.
• Large, three-spoke steering wheel for greater operator comfort and control
• Ignition switch is on the dash for starting ease

• Wide footrest areas with non-slip, anti-vibration floor mats are provided for operator comfort:

• The wide footrest makes it easier to step over the mower deck while entering or exiting the seat.
• Debris-removing channels help keep the footrest area clean and dry.

Instruments and controls are easy to find and convenient to use

Serviceability is convenient with an easy-open hood

The one-piece hood opens easily to permit checking and servicing the engine:

• Important service points are located within easy reach.
• A service interval decal is provided inside the tractor hood for convenience when servicing the tractor.

• John Deere riding lawn mowers are supported by owner information web pages that include links to:

• Safety and how-to videos
• Operator’s manuals
• Parts catalog
• Maintenance reminder sheets
• Attachments
• Warranty registration

• To speed access to owner information web pages, a QR code is printed onto a PIN label located near the fuel fill. Since each vehicle model has its own web page, the links are specific to the owner’s model. The QR code also includes the vehicle’s unique PIN, which enables warranty registration without the need to manually enter the vehicle’s PIN.

• Molded-in color material reduces sound and will not rust or dent.
• Same quality hood material as on larger John Deere tractors provides good resilience and UV resistance for an extended time
• Openings on the side let in plenty of cooling air while keeping the sound level low.
• Two headlights provide good lighting for nighttime operation.

Help maintain your mower and lawn with the MowerPlus™ app and connector

OVERVIEW

Keep a mower running its best and know how it mows with the John Deere MowerPlus app. Simply scan the mower’s barcode to get custom information about the mower.

BENEFITS

• Engine hours, fuel level, and battery health (as compatible)
• Mowing history with time, distance, area, and speed
• Current day and five-day weather forecast based on location
• Walk-through setup guides
• Expert mowing tips
• Useful attachments for future purchase
• Periodic maintenance reminders
• Safety instructions

• BUC10510 MowerPlus Hour Meter Connector is for use with:

• Model year 2003 to 2020 100 Series Tractors, including all models with an E, D, LA, or L prefix
• Model year 2015 to 2020 S240 Tractors (serial number -880,000)
• S100, S110, S140, and S220 Tractors

• BUC10929 MowerPlus Deluxe Smart Connector is for use with:

• All S120, S130, S160, S170, and S180 Tractors
• Model year 2021 and newer S240 Tractors (serial number 880,001-)
• Model year 2021 and newer Z515E, Z530M, Z530R, and Z545R (serial number 010,001-)

• BUC10537 MowerPlus Smart Connector is for use with:

• Model year 2016 and newer Select Series X300 and X500 Tractors

• All the MowerPlus connectors transmit engine hour information to the app, making it easy to track maintenance intervals. The MowerPlus Smart Connector and MowerPlus Deluxe Smart Connector also transmit the fuel level.

  MowerPlus connectors require the MowerPlus app on a mobile device to use. The John Deere MowerPlus app and operating system requirements can be found in the mobile device’s app store. The MowerPlus app is only available in the English language, and it is not available in all countries. BUC10510 MowerPlus Hour Meter Connector requires iOS® version 10 or higher and is not compatible with Android™ operating systems.

  Apple and App Store are trademarks of Apple, Inc. Google Play and Android are trademarks of Google LLC. iOS is a trademark of Cisco Technology, Inc. used under license by Apple Inc.

The Edge™ cutting system gives superior performance

The Edge cutting system has been trademarked to emphasize the advantages of the John Deere mower deck designs. They give superior mowing performance, convenience, and reliability:

• The deep-deck design lifts grass for a clean, even cut.
• The smooth underside has no nooks and crannies, preventing grass buildup and evenly dispersing grass clippings.
• The rolled outer edge of the deck provides extra strength and protection.
• Dual-stage E-coat and powder paint coatings provide extra protection from rust.
• Flexible discharge chute minimizes property and mower deck damage.

The 42-in. (107-cm) Edge Mower Deck is a two-spindle design with heavy-duty characteristics:

• The 13-gauge, 0.09-in. (2.3-mm) steel deck provides years of dependable mowing.
• Included three-in-one blades work well for side-discharge, mulching, or bagging.
• The blade-to-spindle design provides a unique mounting system for the mower blade that provides extra safety and convenience.
• No tools are required to switch from mulching to side discharge to rear bagging.
• A mulching cover is an optional attachment that can be installed without tools to allow mulching with the standard mower blades.
• High-performance mulching blades are available to enhance mulching performance.
• A high-performance mulching attachment  is an optional attachment that includes a mulch plug and special mulching blades for excellent 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.

• The warranty is hassle free, with John Deere handling the service and paperwork.