Engine

The engine is a John Deere PowerTech PWL wastegate turbocharger with air-to-air aftercooling diesel 4-cylinder 16-valve inline. It has a displacement of 275ci / 4.5L and a bore/stroke of 4.17x5.00inches / 106 x 127mm. The compression ratio is 16.8:1 and it has a rated power of 120hp / 89.5kW. The fuel system is electronic high-pressure common rail and the air cleaner is dual stage dry. The engine meets Tier IV emissions standards and uses cooled exhaust-gas recirculation. The starter is electric and operates at 12 volts.


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Transmission

The transmission is a 12-speed or 24-speed two-speed power shift. The engine (gross) produces 120hp / 89.5kW and the PTO (claimed) produces 102hp / 76.1kW. The transmission is designed to handle the power output of the engine and provide smooth shifting between gears. It is a reliable and durable component of the tractor that is easy to operate. The transmission allows the tractor to achieve a maximum speed of 25 mph.

Brakes

The brakes are inboard planetary and the differential lock is mechanical rear. The 4WD differential lock is limited-slip front. The John Deere 6120E has a two-post foldable ROPS Cab that is optional with air-conditioning and AutoTrac steering kit. The engine meets Tier IV emissions standards and uses cooled exhaust-gas recirculation. The brakes are reliable and provide excellent stopping power. The differential lock ensures that the tractor can maintain traction in difficult terrain.



Steering

The steering is powered by a John Deere 4.5L 4-cylinder diesel engine. It is a reliable and durable component of the tractor that provides smooth and responsive steering. The steering system is designed to handle the weight and power of the tractor and provide excellent maneuverability. The steering system allows the operator to easily navigate through tight spaces and around obstacles.


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Common Problems

Users have reported issues with the transmission, particularly with shifting between gears. Some users have also reported problems with the hydraulic system, including leaks and malfunctions. Another common issue is with the cab, which some users have found to be uncomfortable and lacking in features. Additionally, some users have reported problems with the differential lock, which can become stuck or fail to engage properly. Finally, some users have reported issues with the brakes, including reduced stopping power and excessive wear.

What Users Like

Users appreciate the power and performance of the John Deere 6120E, particularly the engine and transmission. The tractor is also praised for its reliability and durability, with many users reporting that it has held up well over time. The steering is also a popular feature, with many users finding it to be smooth and responsive. Finally, users appreciate the versatility of the tractor, which can be used for a wide range of tasks on the farm or job site.

Techincal Specifications

Power

Engine (gross)120hp / 89.5kW
Pto (claimed)102hp / 76.1kW

Engine Detail

DescriptionJohn Deere PowerTech PWL wastegate turbocharger with air-to-air aftercooling diesel 4-cylinder 16-valve inline
Displacement275ci / 4.5L
Bore/stroke4.17x5.00inches / 106 x 127mm
EmissionsTier IV
Emission Controlcooled exhaust-gas recirculation
Rated Power (ec 97/98)120hp / 89.5kW
Fuel Systemelectronic high-pressure common rail
Air Cleanerdual stage dry
Compression16.8:1
Rated Rpm2200
Idle Rpm900-2275
Operating Rpm1800-2200
Torque364lb-ft / 493.6Nm
Torque Rpm1600
Starterelectric
Starter Volts12

Engine

DescriptionJohn Deere 4.5L 4-cyl diesel

Mechanical

Chassis4x2 2WD/4x4 MFWD 4WD
Final Drivesinboard planetary
Differential Lockmechanical rear
4wd Differential Locklimited-slip front
CabTwo-post foldable ROPS Cab optional with air-conditioning AutoTrac steering kit
Transmissions12-speed 24-speed two-speed power shift

Dimensions

2wd Wheelbase96.7inches / 245cm
4wd Wheelbase96.5inches / 245cm
Rear AxleFlange
2wd Front Tread60.4 to 80.4inches / 153 to 204cm
4wd Front Tread59.7 to 79.4inches / 151 to 201cm

Dimensions And Tires

2wd Wheelbase96.7inches / 245cm
4wd Wheelbase96.5inches / 245cm

Serial Numbers

LocationSerial number plate on the right side of the 6120E tractor frame, above the front axle

Hydraulics

Typeopen center
Pressure2828psi / 195.0bar
Valves2 to 3
Pump Flow20gpm / 75.7lpm

Tractor Hitch

Rear TypeII
Controldraft sensing
Rear Lift (at 24550lbs / 249kg 7300lbs / 3311kg
Rear Armstelescopic draft arms
DrawbarCat. 2 / Cat. 2 HD

Electrical

Groundnegative
Battery Volts12

Power Take Off Pto

Rear Ptoindependent
Rear Rpm540/1000 (1.375)
Engine Rpm540@2085 1000@2067

Weight

Ballasted14250lbs / 6463kg
Max Capacity17636lbs / 7999kg
Max Drawbar5500lbs / 2494kg 7300lbs / 3311kg *With heavy-duty drawbar option