John Deere 4120
The John Deere 4120 is a compact utility tractor produced from 2004 to 2014 as part of the 4000 Twenty Compact Series. It features a 2.4L 4-cylinder turbocharged diesel engine producing 43.1 hp, with options for 12-speed PowrReverser or hydrostatic eHydro transmissions. The tractor includes four-wheel drive, hydrostatic power steering, and ROPS for safety. It has a fuel capacity of 14.5 gallons and an open center hydraulic system with 10.3 gallons capacity. The 4120 supports a rear PTO of 540 rpm and an optional mid PTO. Dimensions include a 71.5 inch wheelbase, 128.2 inch length, and a weight of 3700 lbs. Attachments include a 72" mid-mount mower deck, loaders (400X and 400CX), and a John Deere 485 backhoe, making it versatile for various tasks.
Power43 hp
Founded2004 - 2014
Model4120
Technical Specifications
Detailed specifications and technical data for John Deere 4120
Power
| Engine power | 43.1 hp (32.1 kW) |
|---|---|
| PTO (claimed) | 35 hp (26.1 kW) |
Engine
| Model | John Deere 2.4L 4-cyl diesel |
|---|---|
| Power | 43.1 hp (32.1 kW) |
| Details | turbocharged diesel, 4-cylinder, liquid-cooled |
| Rated RPM | 2400 |
| Bore/Stroke | 3.386x4.134 inches (86 x 105 mm) |
| Compression | 20:1 |
| Displacement | 148.9 ci (2.4 L) |
| Oil capacity | 7.9 qts (7.5 L) |
| Starter power | 2.9 hp (2.2 kW) |
| Starter volts | 12 |
| Coolant capacity | 6.4 qts (6.1 L) |
Capacity
| Fuel | 14.5 gal (54.9 L) |
|---|---|
| Hydraulic system | 10.3 gal (39.0 L), 9.6 gal (eHydro) (36.3 L) |
Electrical
| Ground | negative |
|---|---|
| Battery CCA | 770 |
| Battery volts | 12 |
| Charging amps | 75 |
| Charging system | alternator |
Hydraulics
| Type | open center |
|---|---|
| Capacity | 10.3 gal (39.0 L), 9.6 gal (eHydro) (36.3 L) |
| Pressure | 2500 psi (172.4 bar) |
| Pump flow | 12 gpm (45.4 lpm) |
| Total flow | 17.1 gpm (64.7 lpm) |
| Steering flow | 5.1 gpm (19.3 lpm) |
Mechanical
| ROPS | Yes |
|---|---|
| Drive | Four-wheel drive |
| Steering | hydrostatic power |
Production
| Type | Compact Utility tractor |
|---|---|
| Series | 4000 Twenty Compact Series |
| Built in | Augusta, Georgia, USA |
| Years produced | 2004 - 2014 |
Attachments
| Overview | 72" mid-mount mower deck, John Deere 400X loader, John Deere 400CX loader, Backhoe |
|---|---|
| 400X Loader | 2346 lbs lift (full at pin) (1064 kg), 1720 lbs lift (full at 500mm) (780 kg), 2701 lbs lift (1.5m at pin) (1225 kg), 2154 lbs lift (1.5m at 500mm) (977 kg), 3453 lbs breakout (at pin) (1566 kg), 2606 lbs breakout (at 500mm) (1182 kg), 3289 lbs breakout (bucket) (1491 kg), 46° dump, 24.4 inches reach (dumped) (61 cm), 64.3 inches reach (ground) (163 cm), 32° rollback (ground line), 117° rollback (raised), 112.8 inches height (at pin) (286 cm), 89.5 inches clearance (dumped) (227 cm), 104.8 inches clearance (level) (266 cm), weight 927 lbs (420 kg), Bucket width 61 inches (154 cm), Bucket width 73 inches (185 cm) |
| 400CX Loader | 2368 lbs lift (full at pin) (1074 kg), 1742 lbs lift (full at 500mm) (790 kg), 2734 lbs lift (1.5m at pin) (1240 kg), 2181 lbs lift (1.5m at 500mm) (989 kg), 3435 lbs breakout (at pin) (1558 kg), 3055 lbs breakout (at 500mm) (1385 kg), 4638 lbs breakout (bucket) (2103 kg), 45° dump, 24.8 inches reach (dumped) (62 cm), 64.7 inches reach (ground) (164 cm), 43° rollback (ground line), 43° rollback (raised), 112.8 inches height (at pin) (286 cm), 89.7 inches clearance (dumped) (227 cm), 104.8 inches clearance (level) (266 cm), weight 1100 lbs (498 kg), Bucket width 61 inches (154 cm), Bucket width 73 inches (185 cm) |
| 72" Mower deck | mid-mount John Deere, 3-blade with hydraulic lift, Cutting width 72 inches (182 cm), Weight 448 lbs (203 kg), Overall width 85 inches (215 cm), Cut height 1 to 9.6 inch (2 to 24 cm) |
| John Deere 485 Backhoe | Weight 1460 lbs (662 kg), Transport height 90 inches (228 cm), Digging depth 105 inches (266 cm), Reach from pivot 142 inches (360 cm), Loading height 88 inches (223 cm), Bucket Rotation 180°, Swing Arc 180°, Bucket force 3730 lbs (1691 kg), Dipperstick force 2435 lbs (1104 kg) |
Transmission
| Types | PowrReverser, eHydro |
|---|---|
| Options | 12-speed, hydrostatic |
| eHydro type | hydrostatic |
| eHydro gears | infinite forward and reverse |
| PowrReverser gears | 12 forward and reverse |
| eHydro oil capacity | 38.4 qts (36.3 L) |
| PowrReverser oil capacity | 41.2 qts (39.0 L) |
Tractor hitch
| Rear Type | I |
|---|---|
| Rear lift (at ends) | 3,130 lbs (1419 kg) |
| Rear lift (at 24"/610mm) | 2,500 lbs (1134 kg) |
Dimensions & Tires
| Width | 65.6 inches (R1 tires) (166 cm) |
|---|---|
| Length | 128.2 inches (325 cm) |
| Weight | 3700 lbs (1678 kg) |
| Rear tire | 13.6-28 |
| Wheelbase | 71.5 inches (181 cm) |
| Front tire | 8.00-16 |
| Max Drawbar | 1,103 lbs (500 kg) |
| Height (ROPS) | 97.2 inches (246 cm) |
| Height (hood) | 62 inches (157 cm) |
Power Take-off (PTO)
| Mid PTO | independent (optional) |
|---|---|
| Rear PTO | independent |
| Mid PTO Type | 2100 |
| Rear PTO Type | 540 |
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