John Deere X390 Lawn Tractor with 54-inch Deck

Engine is smooth running and reliable V-twin air-cooled design

The tractor is powered by a John Deere iTorque power system, a combination of engine features and an exclusive hood design that provide superior lugging ability, even cooling, and durability.

A 23-hp (17.2-kW) V-twin engine provides plenty of power and torque to handle tough mulching, mowing, and bagging conditions.

Key engine features include:

• 23 hp (17.2 kW)
• Large 44.3 cu in. (726-cc) displacement
• V-twin air-cooled design that provides smooth, quiet power
• Quality features include:
  • Cast-iron cylinder liners
  • Overhead valves
  • Full-pressure lubrication
  • Replaceable oil filter
• Dual-stage air cleaner V-twin design:
  • Excellent power and performance
  • Easy starts
  • Smooth operation

Flywheel alternator

A flywheel alternator provides plenty of capacity to quickly recharge the battery and power electrical equipment, such as lights or a sprayer:

• 12-amp charging capacity
• Regulated to keep the battery at full charge without risk of overcharging

Fuel tank has large, 3.3-U.S. gal. (12.5-L) capacity

Large fuel tank and convenient fuel gauge minimize the number of stops for fuel and chance of running out of fuel:

• Fuel tank has a large, 3.3-U.S. gal. (12.5-L) capacity for more hours of operation between refills.
• Large, 3-in. (7.6-cm) diameter fuel tank filler opening makes adding fuel easy.
  • Located on the left fender
  • Helps eliminate spillage
• Electronic fuel gauge on the dash display allows the operator to easily monitor the amount of fuel in the tank.

54-in. (137-cm) Accel Deep™ (54A) Mower Deck cuts clean and is versatile

The 54-in. (137-cm) Accel Deep Mower Deck is a stamped-steel, deep, flat-top design that delivers excellent cut quality, productivity, cleanliness, durability, and versatility. Optimal performance and dispersion of clippings is provided, even at faster mowing speeds or in tall grass:

• 4.83-in. (12.3-cm) depth throughout the entire deck shell for optimum mowing, mulching, and bagging performance
  • Optional lever-action or electric one-touch MulchControl™ system provides superior mulching performance and versatility.
• Stamped-steel design eliminates sharp edges and corners where material can build up and diminish mowing performance
• Mower deck is suspended from the vehicle for a smooth and level cut
  • Adjustable mower wheels, positioned just above ground level, help reduce scalping 
• 0.25-in. (6.4-mm) cut-height increments allow the mower to be set at the desired cut height
• Compatible with high-performance Power Flow™ material collection systems
• For use on X380, X384, X390, X394, X570, X580, X584, and model year 2016 and newer X590 Tractors

Excellent cut quality

Deep mower-deck stamping gives excellent cut quality. It allows the cut and suspended material room to exit the deck without getting recut:

• Reducing the amount of recutting enables more power to be used to cut incoming grass, which greatly improves mower capacity.
  • Helps maintain excellent cut quality at faster mowing speeds
• Clean flow of material out of discharge area prevents cut material from interfering with cutting the incoming grass, making it possible for the blades to cut incoming material cleanly.
• Even in mulching mode, cut evenness is improved compared to other designs because the additional depth allows for continuous circulation, optimal recutting, and an even distribution of clippings.
• Exact Adjust deck-leveling system allows for easy and accurate leveling of the mower deck

Four-year or 300-hour bumper-to-bumper warranty is standard

An exclusive 4-year or 300-hour (whichever comes first), single-source, bumper-to-bumper warranty* is standard for all John Deere X300 Series Tractors.

• The warranty is hassle free, with one company handling all the paperwork.
• Premium features of X300 Series Tractors allow for this longer warranty period, with more coverage than comparable tractors.

*Term limited to years or hours used, whichever comes first, and varies by model. See the LIMITED WARRANTY FOR NEW JOHN DEERE TURF AND UTILITY EQUIPMENT at JohnDeere.com or JohnDeere.ca/TUWarranty for details.

Power steering and hydraulic lift enable easy operation

Hydraulic power steering is standard equipment:

• Provides effortless, automotive-like control
• Reduces operator fatigue and increases productivity
• Enables a tight turning radius for great maneuverability
• Adjustable-tilt steering wheel for optimum operator comfort (X390 and X394 Tractor)

Hydraulic lift system is easy to operate

The hydraulic lift control lever is positioned on the dash near the steering wheel for quick, easy, and precise fingertip control of equipment. Implement float, which allows an implement to follow the ground contour, is built into the lift linkage.

MulchControl™ system provides superior mulching performance and rapid conversion

The optional MulchControl system makes mulching more practical for many mowing situations because it not only does an excellent job of mulching, but it also allows the mower to be easily converted for times when it is more desirable to side discharge or collect the lawn material. Advantages of mulching grass clippings include:

• Creates a beautiful looking lawn
• Smaller grass clippings disappear into the lawn canopy
• Reduces fertilizer needs
• Grass clippings are not blown onto the operator, driveways, or flower beds
• No need to dispose of bags of clippings

How MulchControl works

MulchControl is an innovative, simple design that is easy to use and maintain:

• The MulchControl system includes an adjustable MulchControl baffle near the discharge chute and fixed baffles to control the flow of material under the deck.
• The MulchControl handle, or an electric one-touch actuator, is on top of the mower deck and is used to open and close the MulchControl baffle.
• When the MulchControl baffle is open, most of the material flows freely out the discharge deflector or into a material collection system.
• When the MulchControl baffle is closed, material stays within the deck and gets chopped into mulch and deposited in the turf.

MulchControl is well-suited to the following mowing situations:

• For operators who usually mulch, but side discharge when grass gets too long
• For operators who usually side discharge, but would like to close the chute to control clippings in some areas
• For operators who always mulch a main lawn, but often side discharge secondary lawns
• For operators who collect clippings but want to go farther before emptying the material collection system

MulchControl puts the operator in control of the clippings.

Electric one-touch MulchControl

Electric one-touch MulchControl systems shift the MulchControl baffle using an electric actuator that is operated by a dash-mounted switch.

Operators can convert between modes without interrupting the mowing process, making it possible to change between modes:

• When approaching driveways or flower beds where clippings would be undesirable
• When a breeze blows clippings back onto the operator
• For side discharge mowing only the areas of the property where grass is too thick for mulching
• With 48A and 54A Mower Decks, for collecting only the areas of the property where grass is too tall or thick for mulching

MulchControl limitations

While in the side discharge mode, MulchControl still mulches about one third of the material. Therefore, the side discharge mode is essentially a partial mulch mode. This can be an advantage when side discharging or bagging, as it helps to reduce the amount of material being discharged. Other times this could work as a disadvantage:

• When cutting strong southern grasses, such as Zoysia and Bermuda
• When cutting in wet, high growth conditions, such as those found in the Pacific Northwest United States
• When optimum bagging and lawn clean­up is desired
• 42A Mower Deck requires a MulchControl baffle be removed to install the bagger chute

When bagging with MulchControl on a 48A or 54A mower deck, the MulchControl baffle can be opened or closed with the Power Flow™ blower installed. The Power Flow blower runs without material when the baffle is closed.

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
• 44-in. (112-cm) Front Blade
• 48-in. (122-cm) Front Blade (X394 Tractor only)
• Tire chains or TerraGrip traction belts
• Weather enclosure (available for all X300 Series, except the X350R)
• Weights

Integrated hydrostatic transaxle efficiently transmits power to wheels

The Tuff Torq® hydrostatic transaxle encloses the hydrostatic pump and motor rotator groups in the same housing with the differential and axle housings. This design is very efficient and reduces the number of sealing surfaces to minimize the potential for leakage.

Combined with the foot controls, the hydrostatic transmission functions similarly to that of an automatic transmission in an automobile, so the term automatic is often used to describe it:

• Use of the latest valve designs has significantly reduced the sound level.
• Large pump and motor rotating groups ensure long life and efficient operation.

Freewheeling valve

A freewheeling valve control is conveniently located near the tractor rear hitch plate for good visibility and easy operation.

Kanzaki and Tuff Torq are trademarks of Kanzaki Kokyukoki Mfg. Co., Ltd.

Controls are convenient and easy to find

The contoured dash has clean, attractive styling and ergonomic controls for easy use:

• Controls are color coded for easy identification by the operator.
• Controls are logically placed and easy to reach.
• The power take-off (PTO) switch allows the operator to get fingers underneath it, like a T-handle, to pull up for easy activation.
• The reverse implement option (RIO) switch is a yellow button.
• The hydraulic-lift control and the park brake latch are pivot levers for low effort.
• Cruise control activation is handled by an automotive-style button.
• Separate engine speed and choke controls make starting and warming up the engine easier in cold weather.
  • The choke lever is spring loaded to eliminate the chance the tractor will be unintentionally operated with the choke partially closed.

Functional design of the throttle and choke controls provides good appearance and a comfortable feel.

• The hydraulic-lift control and the park brake latch are pivot levers for low effort.
• Cruise control activation is handled by an automotive-style button.
• Separate engine speed and choke controls make starting and warming up the engine easier in cold weather.
  • The choke lever is spring loaded to eliminate the chance the tractor will be unintentionally operated with the choke partially closed.
• Functional design of the throttle and choke controls provides good appearance and a comfortable feel.
• Power steering takes the work out of turns.
• Tilt steering wheel adjusts for operator comfort (X390, X394).

Display panel

Instrument display has the look and feel of a modern automobile. A power-up sequence cycles lights and gauges to indicate they are working:

• Display features dark-cockpit design to minimize operator distractions.
• Display is back lit for night visibility.
  • Night visibility is especially useful with snow blower use.
• Hour meter makes it easy to tell when oil changes and other maintenance should be performed.
• Electronic fuel gauge provides real-time fuel level information.
• A tachometer graphically displays engine speed.
  • Target-zone graphics inform the operator of the engine speed range to use for best cut quality.
• An indicator tells the operator when the PTO is operating.
• Bright caution and stop lights capture the operator's attention when important information is on the instrument cluster.
  • Damage can be prevented and repair costs can be reduced by addressing problems early.
• Operators are advised of what the problem is if they attempt to operate the mower with unsatisfied PTO, seat, or park brake interlocks.
  • The indicators are also useful to identify the reasons the PTO or engine may have shut off when an interlock is unsatisfied.
• Operators are advised if battery voltage is low, normal, or excessive.
• The service indicator light illuminates to indicate a diagnostic error code is stored.
  • Onboard diagnostics provides trouble codes for use by trained technicians.
    • For example, a technician can test switch functionality and circuit continuity without tools.

Frame is reliable heavy-duty welded steel

The frame is made of heavy formed and welded steel, reinforced in critical areas for even greater strength:

• The frame is formed from 12-gauge, 0.105-in. (2.66-mm) thick material for long life.
• Standard front bumper and hitch plate are formed from 9-gauge, 0.15-in. (3.8-mm) steel and complete the frame assembly.
• Rear hitch plate can support two 42-lb (19-kg) Quik-Tatch weights.
  • Weight bracket is built into the frame of two-wheel-steer models.
  • Four-wheel-steer models require the optional weight bracket.

Front axle and wheel spindles are heavy-duty

Front axle is made of nodular cast iron:

• Cast-iron front axle is strong and shock resistant.
• Cast iron will not yield under heavy loads or impact.

A replaceable bushing is used at axle mounting:

• The bushing provides excellent wear resistance.
• Grease fittings at each spindle are easy to service.

Front steering spindles

Front steering spindle diameter is 0.75 in. (19 mm) for strength and long life:

• Have strength to handle heavy implements
• Provide long life at bearing surfaces
• Use sealed precision bearings in front wheels

Rear equipment-mounting system is heavy-duty and easy to use

A heavy-duty equipment mounting system is used:

• Includes strong frame mounts with a combination of mounting holes in the tractor hitch plate that accept pins or shoulder bolts to support heavy rear-mounted equipment
• Easily attach optional equipment to the tractor
• Can bear the load of heavy rear-mounted equipment, such as material collection systems

Modern styling with functional design enhances appearance and performance

Smooth, rounded contours present a modern, styled appearance:

• Hood styling incorporates efficient full-length air-intake louvers on each side, rather than on the top.
  • Cooler engine operation
  • Lower operator station sound levels
• Hot air is vented out the front grille, away from the operator.
• The fully enclosed hood is made of molded-in-color material.
  • Reduces sound
  • Will not rust or dent
• Distinctive grille and large, one-piece fender deck complete the styling package.

Two high-quality headlights give excellent visibility

Headlights are standard equipment on all models:

• Two 27-W bulbs provide excellent lighting for good visibility during evening operation.
• A headlight position on the ignition switch makes it easy to operate the headlights.
• The headlights are designed to provide an optimum lighting pattern for mowing and snow removal.

Operator station is comfortable and convenient

The operator station is designed for operator comfort and ease of using controls:

• A large, 14-in. (36-cm) diameter steering wheel is comfortable to use and minimizes steering effort.
• Full-length foot mats provide comfort for the operator and protect the footrest area.

Comfortable seat

An 18-in. (46-cm), high-back cut-and-sewn seat delivers a comfortable, smooth ride and excellent support for the operator:

• A smoother, more comfortable ride results from the use of more foam than in a form-in-place seat and more side-bolstering to stabilize the operator on uneven terrain.
• Improved visual appeal is provided by the thicker cushion, additional bolstering in the seat and back, and an embroidered John Deere logo that makes this upscale seat look as good as it feels.
• Long-term pliability and less chance of cracking are advantages of the cut-and-sewn process, which does not require heating during the manufacturing process and gives a more uniform vinyl thickness.
• Additional operator support and comfort is available with optional BM23761 armrests.
• Reduced cost of repair, should the seat cover be damaged, is available with a replaceable seat cover available from Parts.
• Seat travel of 6.6 in. (17 cm) with 15 positions allows the operator to be seated comfortably and easily operate the controls. Seat can be easily adjusted fore and aft by the operator while sitting on the seat.

Adjustable seat suspension

The seat suspension is adjustable, without tools, for the weight of the operator:

• Springs are adjustable fore and aft to any of three positions.
  • No tools required
  • Allows fine-tuning of the suspension for the operator's weight
  • Back position for more support for heavier operators
• Tool tray is designed into the seat base.
  • Can be used to store gloves, small tools, etc.
  • Provides storage location for Exact Adjust tool and deck-leveling gauge

Cup holder and toolbox

A cup holder and toolbox are located on the fender for operator convenience:

• The cup holder holds a variety of container sizes.
• Toolbox provides convenient storage.
  • Toolbox cover snaps closed to provide protection for loose tools, cell phones, etc.
• Cup holder and toolbox are constructed of durable acrylonitrile butadiene styrene (ABS) plastic.

Removable plug for optional 12-V outlet

A removable plug on the console, in front of the operator, provides a convenient location for the optional 12-V outlet and makes installation easy.

• Convenient for plugging in cell phone charger and other electric devices
  • Can be used to operate electric rear equipment, such as a sprayer or spreader

A mid-vehicle, 12-V fast connector, located under the tractor’s fuse box, is included as standard equipment to reduce initial installation time for some attachments that operate on 12-V power from the tractor:

• The four-cavity connector includes battery, ground, and key switch terminals and is turned on and off with the ignition switch.

Serviceability is convenient with 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.

The engine fuel and oil filters, the oil check/fill tube, and the oil drain tube are exposed for serviceability when the hood is opened.

Quick response (QR) codes link to owner information web pages

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 statements

To speed access to owner information web pages, a QR code is printed onto a PIN label located under the hood on trim side of the steering pedestal. 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 allows for additional customization of the owner information web page in the future.

Exact Adjust ports and onboard deck-leveling tools make precise deck adjustments easy

A mower deck must be level side-to-side and properly adjusted front-to-rear to give the best cutting performance. A removable onboard deck-leveling gauge and a hex-key tool are provided to make adjustment easy. They are securely stored under the tractor seat.

Exact Adjust leveling ports are provided on each side of the operator platform above the mower-level adjusting bolts. With the hex-shaped tool, they provide convenient access to allow quick and easy adjustment of the mower for the best-cut quality of cut.

The Exact Adjust feature is standard on all Select Series™ X300 and X500 Tractors:

• There is no need to reach under the fender deck while making the mower-level adjustment.
• Onboard deck-leveling gauge, Exact Adjust ports, and the hex tool work together.
  • Level the mower deck side to side
  • Set the correct amount of rake (front-to-back deck orientation)
  • Calibrate the cutting height to the cut-height adjusting knob setting
• Exact Adjust simplifies leveling the mower deck if equipped with a Power Flow™ blower.
  • To give the best cut, mower level should be adjusted if alternately mowing with and without blower installed. The Exact Adjust feature makes this easy.

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

To download the free MowerPlus app, visit the Apple® App Store® or Google Play™ store.

Additional details

MowerPlus connectors (sold separately)

Three MowerPlus connectors are available to transmit vehicle information to the MowerPlus app.

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.