The John Deere 4120 is a 4WD compact utility tractor from the 4000 series. This tractor was manufactured by the John Deere in Augusta, Georgia, USA from 2004 to 2014. The JD 4120 is equipped with a 2.4 L four-cylinder turbocharged diesel engine and one of two transmissions: a power shuttle transmission with 12 forward and 12 reverse gears or hydrostatic transmission with infinite forward and reverse.
The John Deere 4120 compact utility tractor used the John Deere 4024T engine. It is a 2.4 L, 2,440 cm2, (148.9 cu·in) four-cylinder turbocharged diesel engine with 86.0 mm (3.39 in) of the cylinder bore and 105.0 mm (4.13 in) of the piston stroke. The compression ratio rating is 20.0:1. This engine produced 43.0 PS (31.6 kW; 42.4 HP) at 2,400 rpm of horsepower and 148.0 N·m (15.1 kg·m, 109.1 ft·lb) at 1,440 rpm of torque.
The J 4120 is equipped with power steering, wet disc brakes, open operator station with ROPS and 55.0 liters (14.5 US gal.; 12.1 Imp. gal) fuel tank.
Following attachments are available for the John Deere 4120 compact utility tractor:
- John Deere 400X loader
- John Deere 400CX (MSL) loader
- John Deere 485 backhoe
John Deere 4120 Specifications
| General Specifications | |
| Model | John Deere 4120 |
| Length | 3,250 mm (128 in) |
| Width | 1,660 mm (65.4 in) |
| Height | 2,460 mm (96.9 in) |
| Wheel base | 1,810 mm (71.3 in) |
| Weight | 1,680 kg (3,705 lbs) |
| Fuel tank capacity | 55.0 liters (14.5 US gal.; 12.1 Imp. gal) |
| Battery | 12V, CCA 770A |
| Cabin type | Open operator station with ROPS |
| Engine | |
| Engine model | John Deere 4024T |
| Engine type | Four-stroke, liquid-cooled, inline |
| Cylinders | 4 |
| Fuel type | Diesel |
| Displacement | 2.4 L, 2,440 cm2, (148.9 cu·in) |
| Bore and stroke | 86.0 mm X 105.0 mm (3.39 in X 4.13 in) |
| Compression ratio | 20.0:1 |
| Horsepower | 43 PS (31.6 kW; 42.4 HP) at 2,400 rpm |
| Torque | 148.0 N·m (15.1 kg·m, 109.1 ft·lb) at 1,440 rpm |
| Starter | Electric |
| Oil capacity: | 7.5 L (7.9 US. qt, 6.6 Imp. qt.) |
| Coolant capacity: | 6.1 L (6.4 US. qt, 5.4 Imp. qt.) |
| Transmission and chassis | |
| Chassis | 4×4 MFWD 4WD |
| Steering type | Power |
| Brakes | Wet disc |
| Final drive | Planetary gear |
| Differential lock | Mechanical |
| Transmission model | PowrReverser |
| Transmission type | Power shuttle |
| Gears | 12 forward and 12 reverse |
| Speed | Forward: 27.8 kmh (17.3 mph) |
| Transmission oil capacity | 39.0 L (10.3 US. gal, 8.6 Imp. gal.) |
| Transmission model | eHydro |
| Transmission type | Hydrostatic |
| Gears | Infinite forward and reverse |
| Speed | Forward: 27.2 kmh (16.9 mph) |
| Transmission oil capacity | 36.1 L (9.6 US. gal, 8 Imp. gal.) |
| Tires | |
| Front tires | Ag: 8.00-16 |
| Rear tires | Ag: 13.6-28 |
| Three-Point Hitch | |
| Caterogy | I |
| Control type | – |
| Lift capacity (at ends) | 1,420 kg (3,131 lbs) |
| PTO (Power take-off shaft) | |
| Middle PTO type | Independent (option) |
| Middle PTO spped | 2,100 rpm |
| Rear PTO type | Independent |
| Rear PTO spped | 540 rpm |
| Hydraulic system | |
| Hydraulic type | Open center |
| Hydraulic capacity | PowrReverser: 39.0 L (41.21 US. qt, 34.32 Imp. qt.) eHydro : 36.1 L (9.6 US. gal, 8 Imp. gal.) |
| Pressure | 2,500 psi (172 bar) |
| Pump flow | 12.0 gpm (45.4 lpm) |
| Steering flow | 5.1 gpm (19.3 lpm) |
| Total flow | 17.1 gpm (64.7 lpm) |
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