Contents
- 1 John Deere 4120 Specs, Oil capacity, Features, Price & Review
- 2 About John Deere 4120
- 3 John Deere 4120 Price
- 4 John Deere 4120 Features
- 5 John Deere 4120 Specs
- 6 John Deere 4120 Review Video
- 7 John Deere 4120 Attachments
- 8 John Deere 4120 Problems
- 9 How To Fix John Deere 4120 Problems
- 10 John Deere 4120 FAQ
John Deere 4120 Specs, Oil capacity, Features, Price & Review
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Let’s talk about John Deere 4120 price, its price, and specifications, and John Deere 4120 reviews.
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So, without further ado, let’s get to the main topic.
About John Deere 4120
The 4120 from John Deere is a compact utility tractor with four-wheel drive. From 2004 to 2014, this tractor was made by John Deere in Augusta, Georgia, in the United States.
The JD 4120 has a 2.4 L turbocharged diesel engine with four cylinders and either a power shuttle transmission with 12 forward and 12 reverse gears or a hydrostatic transmission with an infinite number of forward and reverse gears.
The John Deere 4024T engine was in the John Deere 4120 small utility tractor. It has a 2.4 L, 2,440 cm2, 148.9 cuin, four-cylinder turbocharged diesel engine with a cylinder bore of 3.39 inches and a piston stroke of 4.13 inches. The ratio of compression is 20.0:1.
This engine made 43.0 PS (31.6 kW; 42.4 HP) of power at 2,400 rpm and 148.0 Nm (15.1 kgm; 109.1 ftlb) of torque at 1,440 rpm.
The J 4120 has power steering, wet disc brakes, an open operator station with ROPS, and a fuel tank that holds 55.0 liters (14.5 US gal; 12.1 Imp. gal).
John Deere 4120 Price
John Deere 4120 Original Price: $26,900.00 USD
John Deere 4120 Oil Capacity
John Deere 4120 oil capacity is 7.9 qts 7.5 L
John Deere 4120 Quick Specs
- Manufacturer: John Deere
- Engine Power: 43
- Fuel Capacity: 14.5
- Transmission: 12F/12R
- Drive Wheels: MFWD
- Total Hydraulic Output: 17.1 gpm
John Deere 4120 Features
- 43HP John Deere PowerTech Turbocharged Diesel Engine
- Hydraulic System with Dual Gear Pumps
- Gear Transmission (Standard) with the option of Hydrostatic
- Safety and Comfort
John Deere 4120 Specs
General information and Service Manual
| Make | John Deere |
| Model | 4120 |
| Company Country | United States |
| Production years | From 2004 Until 2014 |
| Tractor type | Compact Utility tractor |
| Fuel | diesel |
| Price | – |
| Total build | – |
| Engine size | 148.9 ci or 2.4 L |
| Number of cylinders | 4 cylinders |
| Horsepower | 43.1 hp or 32.1 kW |
| Power RPM | 2400 (rpm) |
| Engine torque | – |
| Engine torque RPM | – |
| Fuel type | diesel |
| Fuel tank capacity | 14.5 gal or 54.9 L |
| Compression ratio | 20:1 |
| Bore stroke | 3.386×4.134 inches or (86 x 105 mm) |
| Oil tank capacity | 7.9 qts or 7.5 L |
| Coolant tank capacity | 6.4 qts or 6.1 L |
| Transmission system | eHydro |
| Transmission type | hydrostatic |
| Transmission gears | infinite forward and reverse |
| Oil tank capacity | 38.4 qts or 36.3 L |
| Hydraulic system | open center |
| Pump flow rate | 12 gpm or 45.4 lpm |
| Steering flow rate | 5.1 gpm or 19.3 lpm |
| Hydraulic tank capacity | 10.3 gal or 39.0 L |
| Hydraulic pressure | 2500 psi or 172.4 bar |
| Hydraulic max flow | 17.1 gpm or 64.7 lpm |
| Hitch control system | – |
| Rear hitch | I |
| Rear hitch lift | 3,130 lbs or 1419 kg |
| AG front tires | 8.00-16 |
| AG rear tires | 13.6-28 |
| Weight | 3700 lbs or 1678 kg |
| Length | 128.2 inches [325 cm] |
| Width | 65.6 inches [166 cm] (R1 tires) to 91.9 (R4 tires) |
| Height | 97.2 inches [246 cm] |
| Wheelbase | 71.5 inches [181 cm] |
| Ground clearance | – |
| Number of batteries | 1 |
| Battery voltage | 12 V |
| Battery cold cranking Amps | 770 |
| Electric ground force | negative |
| Electric charging system | alternator |
| Electric charging Amps | 75 amps |
| Engine starter volts | 12 V |
| Wheel drive | 4×4 MFWD 4WD |
| Steering system | hydrostatic power |
| Braking system | – |
| Cabin type | ROPS |
| PTO claimed power | 35 hp or 26.1 kW |
| PTO clutch system | – |
| Rear PTO system | independent |
| Rear PTO RPM | 540 (rpm) |
| Front PTO system | – |
| Mid-PTO system | independent |
| Mid PTO RPM | 2100 (rpm) |
| PTO fuel consumption | – |
John Deere 4120 Review Video
John Deere 4120 Attachments
John Deere 400X Loader |
|
| Loader weight: | 927 lbs 420 kg |
| Height (to pin): | 112.8 inches 286 cm |
| Dump reach: | 24.7 inches 62 cm |
| Dump angle: | 46° |
| Rollback angle: | 31° |
| Breakout force (at pin): | 3506 lbs 1590 kg |
| Breakout force (at 500mm): | 2641 lbs 1197 kg |
| Lift to full height (at pin): | 2368 lbs 1074 kg |
| Lift to full height (at 500mm): | 1742 lbs 790 kg |
| Lift to 1.5m (at pin): | 2634 lbs 1194 kg |
| Lift to 1.5m (at 500mm): | 2181 lbs 989 kg |
| Raise time to height: | 3.68 s |
| Bucket dump time: | 2.44 s |
| Lowering time: | 2.48 s |
| Rollback time: | 1.44 s |
John Deere 400CX (MSL) Loader |
|
| Loader weight: | 1100 lbs 498 kg |
| Height (to pin): | 110.9 inches 281 cm |
| Dump reach: | 27.5 inches 69 cm |
| Dump angle: | 45° |
| Rollback angle: | 41° |
| Breakout force (at pin): | 3512 lbs 1593 kg |
| Breakout force (at 500mm): | 3159 lbs 1432 kg |
| Lift to full height (at pin): | 2194 lbs 995 kg |
| Lift to full height (at 500mm): | 2339 lbs 1060 kg |
| Lift to 1.5m (at pin): | 2627 lbs 1191 kg |
| Lift to 1.5m (at 500mm): | 2576 lbs 1168 kg |
| Raise time to height: | 3.68 s |
| Bucket dump time: | 1.6 s |
| Lowering time: | 2.48 s |
| Rollback time: | 1.1 s |
John Deere 485 Backhoe |
|
| Backhoe type: | 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 |
John Deere 4120 Problems
Cold Start Issues
When the temperature drops below 30 degrees Fahrenheit, the JD 4120 is hard to start. You may have changed the filters, added algicide, and gel-preventing additives, and done any other troubleshooting that needed to be done.
But most of the time, the problem won’t go away even if you change the batteries and service the glow plugs. If it does start, it makes a lot of white smoke and stumbles around before it settles down and runs smoothly.
Hydrostatic Problems
The hydrostatic issues show up as a small “jerk.” As the tractor gets hotter, the “jerk” happens more often. It feels like the wheels were locked for a short time and then let go. You might find engine oil that is dirty.
But changing the filters, oils, and suction filter while the gearbox and hydraulic oil are out of the tractor may not fix the problem.
It will happen in both 2-wheel drive and 4-wheel drive vehicles. It happens no matter if the PTO is turned on or not. Whether the loader is being used or not (or installed).
You might also get an 08 code for the throttle sensor. You may also get a voltage signal that is out of range or not calibrated, no anti-stall feature, a drop in performance, etc.
Fuel Injector Issues
You might see a lot of smoke coming from the tailpipe. There may not be enough power coming from all the engines. The problem could be a faulty fuel injector or a leak of some kind.
Failure Under Load
When the load switch is set to “on” on a 4120, the drive won’t move the tractor until the tractor is running at 1500 RPMs or more. It’s because of the load match.
The dashboard may show the error code 01. The tractor won’t go forward or backward anymore. It could be that the potentiometer for the forward pedal is broken.
It might be broken or need to be turned back on. Furthermore, something could have caught on a wire under the tractor if you’ve been driving through bushes and pulled it free. Wires aren’t always tucked away and tied down correctly.
Sensor Problems
If the tractor is hard to start when it’s cold, that’s a big sign that the sensors are broken. The engine will turn on, and then it will stop. You will have to crank it a lot to get it going again.
Also, the engine revs up and down by about 300 RPM whether the load match is turned on or not. This could be because the MFWD speed sensor is broken.
The fuel shut-off solenoid or the wires that go to it could be the problem. The tractor will stop all of a sudden without changing speeds.
You might have to take your whole foot off the pedal before it will move again. This appears to happen even when there is no load.
There are error codes for when the forward and reverse pedal sensors are above or below normal or out of range/out of calibration. It means that a pedal was connected to the ground or a higher voltage.
Errors can be found with the instrument controller, which is also called the dashboard or ICC. Don’t forget to add the transmission control unit (TCU). The dashboards of all of them have screens.
If the seat sensor was broken, the tractor would stop and not move until the hydro pedal was pushed all the way down. There would probably not be an error code.
How To Fix John Deere 4120 Problems
Cold Start Issues
This is how the 4-cylinder JD acts in the winter, which is not good. There may also be problems with the PTO, the seat safety switch, etc. If so, they will have to be changed.
Instead of a glow plug, put in an intake warmer to fix the problem in the winter. To warm up the air, turn the key in for 15 seconds. Also, turn on the tractor while holding the key, and keep holding it until the engine runs smoothly.
Before it starts to run smoothly, it stutters for about 10 to 15 seconds. Also, if you slightly open the throttle right before starting the tractor, it will go faster and smoother.
Hydrostatic Problems
It could be the brakes or the brake sensors. Or the heat from a solenoid. The problem stops for a short time the flow of hydraulic fluid that drives the wheels.
Turn off the Loadmatch and see if that solves the problem. Next, check the oil cooler’s LVA14167 inline oil filter. Check to see if the screen is broken.
Check the two hydraulic pumps’ suction lines. If there is oil on the rubber tube near the pumps or at the end where the filter is, the hydrostatic charge pump might be sucking in the air.
Change the clamps on the rubber tube to worm/screw clamps made of stainless steel. Then, make sure that the manifold that connects the two pumps is tightly attached to each pump. If nothing else works, you should ask the dealer to check the MFWD sensor.
It could also be your front axle. Last, look for broken parts. It could also be the sensors for the seat and pedals.
Fuel Injector Issues
This problem can be fixed by getting a new set of fuel injectors. If bad fuel gets past the filter, it can damage the fuel injectors.
Failure Under Load
You can’t do much about the load match. It’s the way this tractor is made. Check the PTO clutch, front and backpedals, solenoid, O-rings, wires, and other parts for problems. If you need to, replace it.
Load match is a good anti-theft feature and a better governor that is controlled by the CPU. Its job is to make sure the RPM doesn’t stop. Use it only in gears A and B, and only at high RPMS (2000 or up).
Sensor Problems
Test each sensor to find out what it is. When broken, replace.
Conclusion
That’s all there is to know about the John Deere 4120 Tractor Price, Specs, Review, and Key Features; nevertheless, if you have any questions about this topic, kindly put them in the comment section below. We will respond to your inquiry as soon as we can.
John Deere 4120 FAQ
How many HP is a John Deere 4120?
John Deere 4120 engine produces a 43.1 hp 32.1 kW
What engine is in a John Deere 4120?
John Deere 4120 has a liquid-cooled engine
How much can a John Deere 4110 Lift?
John Deere 4120 lift capacity is 618 lbs 280 kg
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