John Deere 6140M



Row Crop Tractors

6 Series

  • PowerTech™ E 6.8 L Diesel Engine
  • Category 3N/3, 3-point hitch
  • MFWD with optional TLS™ Plus
  • OOS/CommandView™ Cab

Machine Features

Loader ready

Raising the game: John Deere R-Series Front Loaders
Front loader work with the 6M TractorFront loader work with the 6M Tractor

John Deere front loaders are designed, manufactured, and tested to the same stringent standards as our tractors. They fit the 6M Tractor perfectly, are compatible with the John Deere front hitch, work with reliable precision and durability, and allow superb all-around visibility for accurate positioning. A close-fitting hood guard is available to protect the front end from the possibility of damage during loader operation. The durable, oil-cooled PermaClutch™ 2 clutch disks in every 6M Tractor are engineered to manage the multiple directional changes that are typical of continuous front loader operations.

Built for a long working life
Front loaderFront loader

Loads generated by operating a front loader are transferred to the middle of the rugged, full frame by cast-iron mounting frames for optimal weight distribution whether loaded or empty. The mounting frame design and loader kinematics are optimized to bear the heaviest of loads with ease without obstructing access to tractor maintenance points or the front wheel steering angle. The front axle is constructed from three sturdy components, resulting in faster and easier turns, higher payload capability, and very high resistance to severe stresses. Pivot points benefit from an eccentric design while the bushings are made to manage heavy, directional loads and are easily replaceable. The high quality of John Deere front loaders is reflected in their long guarantees and infrequent service intervals.

PowerTech™ E/Tier 2 engine

The full-frame concept
Engine in the full-frame designEngine in the full-frame design

The engine is an integrated part of the full-frame concept. The engine is connected to the frame using vibration-absorbing isolators. Further vibration reduction is achieved by utilizing a heavy-duty torsional damper in the cardan shaft, coupling the flywheel to the clutch housing. This technique provides the following benefits:

  • Elimination of engine block stress, because the engine is no longer a structural part of the tractor.
  • Reduction of noise and vibration transfer to other tractor components.

Durability and performance

The engine is integrated within the full frame and features the following:

  • High-strength block
  • Large displacement and ideal 1:1.2 bore-to-stroke ratio
  • Free-breathing, crossflow cylinder head
  • Full electronic engine management system
  • Highly efficient dual-stage charge air cooler
  • Gear-driven water pumps
  • Wet cylinder liners
  • Self-tensioning, maintenance-free, poly-V-belt
  • Large rod-bearing area
  • Exclusive dual-temperature cooling system
  • Fuel-saving eco fan (viscous fan drive)
  • Collar fan, fitting perfectly within a circular shroud 

Injectors deliver the same fuel pressure level to cylinders from the high-pressure common rail (HPCR):

  • Magnetic valve provides fast and precisely metered fuel injection.
  • Six-hole nozzles give optimum spray patterns and fine fuel atomization.

Performance-matched fuel consumption delivers reduced fuel costs per hour.

HPCR fuel injection system and engine control unit (ECU)
High-pressure common rail fuel injection systemHigh-pressure common rail fuel injection system


  • HPCR (400 bar-1350 bar) delivering exactly the same fuel pressure level at all of the injectors.
  • High responsiveness under all load and speed conditions, which extends the engine's working range to lower speeds, delivering more power and productivity in the field at outstanding fuel saving engine speeds.
  • Performance-matched fuel consumption delivering reduced fuel costs per hectare. 

All 6M Series Tractor engines have a fast-response turbocharger, which is perfectly matched to the respective engine settings.

The 4-cylinder engines, which have a high exhaust gas velocity in their shorter exhaust manifold system, achieve the best performance with a single-channel turbocharger.

The 6-cylinder engines have divided exhaust manifolds with a dual-channel turbocharger.

This careful matching benefits the operator with environmentally friendly, yet economical performance.

Widest transmission portfolio

6M Tractor6M Tractor

There is a versatile 6M Tractor for everything you want to do. To underline that all-around capability, there is a choice of five available transmissions. One of the most exciting options is the CommandQuad™ Plus transmission.

CommandQuad Plus and CommanQuad Plus EcoShift transmissions
CommandQuad Plus transmissionCommandQuad Plus transmission

For enhanced convenience and productivity, the CommandQuad Plus transmission adds even more automatic capability. The smoothness of its AutoClutch function – there is no need to press the clutch when stopping – and the performance of the Powerfill brakes make 6M Tractors perfect for loader work and when hooking up implements. Choose between 20 forward/20 reverse (20F/20R) speeds or 24F/24R speeds. The intuitive single-control lever enables both manual and automatic speed selection and is complemented by the left-hand reverser. The EcoShift version with a transport speed of 40 km/h (25 mph) operates at engine speeds of only 1600 rpm.


6M Tractor6M Tractor

The John Deere full-frame design provides a rigid platform that absorbs and resists loads and shocks transmitted via the wheels, heavy implements, or front loader. To minimize the fatigue and stress caused by unpleasant vibrations, 6M Tractors can be specified with optional mechanical cab suspension. The design of the front axle delivers improved on-road handling characteristics, and its redesigned geometry reduces the amount of steering effort required. There is also the option of the Triple-Link Suspension (TLS™) system. The cab of the 6M is an extremely pleasant and efficient place to work.

Triple Link Suspension (TLS)

This system delivers optimum traction and in-field performance by putting up to 7 percent more power to the ground than a rigid axle. It automatically adjusts in response to changing load and draft conditions. TLS makes the going easier and more productive.

  • Self-levelling with more than 50 mm (2 in.) of suspension travel
  • Automatic adjustment of axle sensitivity and suspension rate
  • Long draft member for optimised draft performance
  • Synchronisation with the hitch sensing system to compensate for power hop effect under heavy pull conditions
  • Additional brake discs in front axle hubs provide increased braking capacity
Cab suspension (mechanical)
Cab suspension (mechanical)Cab suspension (mechanical)

Keeping the operator relaxed and protected from irritating vibrations is achieved with John Deere's maintenance-free mechanical cab suspension.

Integrated solutions

On track for higher productivity
Precision farming starts with guidancePrecision farming starts with guidance

All 6M Series Tractors can be specified with AutoTrac™, John Deere’s integrated automatic guidance system. Complete with all the advantages that automatic guidance can offer, the integrated AutoTrac system is destined to raise your productivity by reducing input costs and boosting efficiency. AutoTrac masters both straight and curved tracks and works without any problems, even in low visibility situations. It reduces skips and overlaps, saving fertilizer, seed, and fuel. You could save up to 8 percent on your input costs.

AutoTrac systemAutoTrac system
Telematics: optimising your operations
MyJohnDeere™ web portalMyJohnDeere™ web portal

John Deere’s agricultural web portal,, unlocks the full potential of your operations. You can monitor and run your fleet of machines, stay up to date with weather forecasts for more efficient job planning, manage your land, allocate your equipment, track the work progress of your machines, and view what has been achieved over the day all from a central location and with all data in one place. With John Deere Wireless Data Transfer (WDT), you can even send data over the air between MyJohnDeere and the GreenStar™ 3 (GS3) 2630 Display, eliminating the risk of data loss and saving time on data transfer. You can log on to MyJohnDeere from any computer or mobile device for an immediate overview of your on-going operations and to share data securely with your dealer, other business partners, trusted advisors, or customers.

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More Info

The information on this page is correct at time of publish and as per John Deere Aus. We reserve the right to change content at any time without prior notice. For more information please contact us.

Last Updated :

October 22,2018 08:40:00 Central Daylight Time

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