| Manufacturer | John Deere |
| Price | - |
| Model | 6120M |
| Equipment Type | Utility Tractors |
| Factory | Mannheim, Baden-Württemberg, Germany |
OCED TRACTOR TEST 3059 2
| Description | Diesel PowerQuad Plus 4WD March 2017 - April 2017 Link: OCED Tractor Test 3059 file PTO performance Drawbar performance |
| Max power | 91.5hp / 68.2kW |
| Fuel use | 6.3gal/hour / 23.8l/hour |
| Power at rated engine speed | 98.2hp / 73.2kW |
| Power at rated PTO speed | 103.0hp / 76.8kW |
| Max pull | 12855lbs / 5831kg |
JOHN DEERE 6120M POWER
| Engine (gross) | 120hp / 89.5kW |
| Engine (max) | 127hp / 94.7kW |
| PTO (claimed) | 94hp / 70.1kW |
| Drawbar (tested) | 91.5hp / 68.2kW |
| PTO (tested) | 105.2hp / 78.4kW |
ENGINE DETAIL
The John Deere 6120M features a robust 4.5L PowerTech PSS engine, providing 120hp rated power and up to 127hp maximum, making it well-suited for mid-sized applications requiring reliable performance. Its Tier IV emissions compliance is achieved through advanced technologies such as cooled exhaust-gas recirculation and selective catalytic reduction, promoting both efficiency and reduced environmental impact. Key considerations include its electric starter and a coolant capacity of 23.25 quarts, which are essential for optimal engine operation and reliability in demanding farming scenarios.
| Description | John Deere PowerTech PSS turbocharged aftercooled diesel 4-cylinder 16-valve liquid-cooled inline |
| Displacement | 276ci / 4.5L |
| Bore/Stroke | 4.15x5.00inches / 105 x 127mm |
| Emissions | Tier IV |
| Emission control | cooled exhaust-gas recirculation, diesel particulate filter, and selective catalytic reduction |
| Rated Power (EC 97/98) | 120hp / 89.5kW |
| Maximum Power (EC 97/68) | 127hp / 94.7kW |
| Rated RPM | 2100 |
| Starter | electric |
| Starter volts | 12 |
| Starter power | 4hp / 3.0kW |
| Coolant capacity | 23.25qts / 22.0L |
JOHN DEERE 6120M ENGINE
The John Deere 6120M features a robust 4.5L 4-cylinder diesel engine, providing a balance of power and fuel efficiency suitable for medium-duty agricultural tasks. With a 51-gallon fuel tank, this tractor offers extended operational range, while the 3.4-gallon DEF tank aids in meeting Tier 4 emissions regulations, enhancing sustainability in farming practices. However, operators should manage fluid levels meticulously, as low DEF can lead to engine derating, impacting productivity during critical periods.
| Description | John Deere 4.5L 4-cyl diesel |
| Fuel tank | 51gal / 193.0L |
| Exhaust fluid (DEF) | 3.4gal / 12.9L |
TRANSMISSIONS OVERVIEW
The John Deere 6120M features a versatile 12-speed and 16-speed power shift transmission, providing smooth gear transitions for various farming applications. The 24-speed option enhances operational efficiency by allowing precise speed control for tasks like tilling or hauling, making it advantageous in diverse terrains. However, operators may face a learning curve mastering the power shift system; consequently, training may be needed to maximize productivity.
| Description | 12-speed 16-speed four-speed power shift 24-speed four-speed power shift |
TRANSMISSION 1
The John Deere 6120M's SyncroPlus transmission offers 12 forward and 4 reverse gears, providing optimal versatility for various agricultural tasks. This transmission type enhances operator control during fieldwork, enabling smooth gear shifts and efficient power delivery. However, operators might encounter a steeper learning curve with syncromesh systems compared to fully automatic options, especially in high-torque applications.
| Transmission | SyncroPlus |
| Gears | 12 forward and 4 reverse |
TRANSMISSION 2
The John Deere 6120M features a PowrQuad transmission with 16 synchronized forward and reverse speeds, providing flexibility for various operational scenarios. The wet disc clutch ensures smooth gear transitions, enhancing driveability and reducing wear in high-load conditions. An optional PowrQuad PLUS offers advanced push-button controls, optimizing operator efficiency in complex tasks such as tillage or transport.
| Transmission | PowrQuad |
| Type | four-speed power shift |
| Gears | 16 forward and reverse |
| Clutch | wet disc |
| Description | Four power-shift gears (1-4) in four synchronized ranges (A-D) with left-hand power shuttle lever. Optional PowrQuad PLUS with push-button gear shift and push-button clutch. |
SPEEDS 1
| Description | With 380/85R38 rear tires Reverse speeds are 4% faster than forward |
TRANSMISSION 3
The John Deere 6120M features a PowrQuad transmission, providing 24 forward and reverse gear options which enhance versatility for various field conditions. The wet disc clutch system offers smooth engagement and reduced wear, allowing for efficient power transfer during operations. An optional PowrQuad PLUS adds convenience with push-button shifting, making it ideal for tasks requiring frequent speed adjustments, though it may introduce complexity for some operators.
| Transmission | PowrQuad |
| Type | four-speed power shift |
| Gears | 24 forward and reverse |
| Clutch | wet disc |
| Description | Four power-shift gears (1-4) in six synchronized ranges (A-F) with left-hand power shuttle lever Optional PowrQuad PLUS with push-button gear shift and push-button clutch |
SPEEDS 2
| Description | With 380/85R38 rear tires Reverse speeds are 4% faster than forward |
TRANSMISSION 4
The John Deere 6120M's AutoQuad PLUS transmission offers seamless shifting with 24 gears in both forward and reverse, enhancing operational versatility for varied field tasks. The wet disc clutch improves durability and reduces maintenance needs, while the AutoShift mode allows for customizable automatic gear transitions, optimizing efficiency. This setup is ideal for users requiring efficient gear management in diverse agricultural scenarios, yet it may pose a learning curve for those unfamiliar with advanced transmission systems.
| Transmission | AutoQuad PLUS |
| Type | four-speed power shift |
| Gears | 24 forward and reverse |
| Clutch | wet disc |
| Description | Four push-button gears (1-4) in six synchronized ranges (A-F) with left-hand power shuttle lever. AutoShift mode enables programmable automatic gear shifting |
SPEEDS 3
| Description | With 380/85R38 rear tires Reverse speeds are 4% faster than forward |
MECHANICAL
The John Deere 6120M tractor offers versatility with both 2WD and 4WD configurations, making it suitable for varied terrain and applications. The inclusion of electro-hydraulic differential locks enhances traction in challenging conditions, while the hydraulic wet disc brakes provide reliable stopping power. Its range of 12 to 24-speed transmission options allows for optimized performance and efficiency across different tasks, though the complexity of multiple gears may require more operator training.
| Chassis | 4x2 2WD/4x4 MFWD 4WD |
| Final drives | inboard planetary |
| Differential lock | electro-hydraulic front and rear |
| Steering | power |
| Brakes | hydraulic wet disc |
| Cab | Cab standard with air-conditoning Two-post folding ROPS available |
| Transmissions | 12-speed 16-speed four-speed power shift 24-speed four-speed power shift |
HYDRAULICS
| Type | open center closed-center pressure-and-flow compensated load sensing |
| Pressure | 2900psi / 200.0bar |
| Rear valves | 3 |
| Mid valves | 3 |
| Pump flow | 21.1gpm / 79.9lpm 30gpm / 113.6lpm *Pressure-flow compensated option |
| SCV flow | 21.1gpm / 79.9lpm |
TRACTOR HITCH
| Rear Type | IIIN/II |
| Control | electronic lower-link draft sensing |
| Rear lift | 5582lbs / 2531kg 7431lbs / 3370kg |
| Drawbar | Cat. 2 |
POWER TAKE-OFF (PTO)
| Rear PTO | independent |
| Clutch | electro-hydraulic |
| Rear RPM | 540/1000 (1.375)/540 |
| Engine RPM | 540@1932 / 1000@1932 |
JOHN DEERE 6120M TIRES
The John Deere 6120M tractor offers versatility with both 2WD and 4WD configurations, allowing users to choose based on terrain and application needs. The 4WD variant provides superior traction and stability, particularly in challenging soil conditions, enhancing productivity during tilling or harvesting tasks. However, the 2WD version may present a cost-effective solution for flat, well-drained fields where enhanced maneuverability is less critical.
| 2WD Standard tires (ag) | Front: 10.00-16 Rear: 460/85R38 |
| 4WD Standard tires (ag) | Front: 380/85R28 Rear: 460/85R38 |
DIMENSIONS
| Wheelbase | 101.6inches / 258cm |
| Length | 176.6inches / 448cm |
| Width | 100.4inches / 255cm |
| Height (ROPS) | 113.1inches / 287cm |
| Height (cab) | 113.3inches / 287cm |
| Clearance (front axle) | 23.9inches / 60cm |
| Rear axle | Rack-and-pinion: 3.1 by 100.6inches / 78 by 2555mm |
| 2WD Front tread | 60.4 to 80.4inches / 153 to 204cm |
JOHN DEERE 6120M WEIGHT
| Shipping | 11486lbs / 5210kg |
| Max capacity | 20172lbs / 9150kg |
| Max Drawbar | 5400lbs / 2449kg |
DIMENSIONS & TIRES
The John Deere 6120M tractor, with a 101.6-inch wheelbase, offers stability and maneuverability in various agricultural applications. Weighing 11,486 lbs (5,210 kg), it has a robust structure, which enhances traction but may limit mobility on softer terrains. The combination of a 10.00-16 front tire and 460/85R38 rear tire provides a balance between ground contact and load support, making it suitable for heavy-duty tasks, though the 2WD configuration may present challenges in muddy or hilly conditions.
| Wheelbase | 101.6inches / 258cm |
| Weight | 11486lbs / 5210kg |
| Front tire | 10.00-16 |
| 2WD Rear tire | 460/85R38 |
6120M SERIAL NUMBERS
| Location | Serial number plate on the right side of the tractor frame, above and to the rear of the front axle |
ELECTRICAL
| Ground | negative |
| Charging system | alternator |
| Charging amps | 120/200 with cab |
| Charging volts | 14 |
| Battery volts | 12 |