John Deere 4120

John Deere 4120The 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)