Brand siblingJohn Deere 4120
The John Deere 4120 is a utility tractor made from 2004 to 2014. It's a strong helper on the farm, with a 4-wheel drive system that can handle tough jobs. The tractor has a 43 horsepower engine, which is about average for its size. It uses diesel fuel and has a turbocharger to give it extra power when needed. This tractor is built to be versatile. It has a three-point hitch in the back that can lift up to 3,131 pounds, which is very good for its class. The power take-off (PTO) runs at 540 rpm, letting you use many different tools. The John Deere 4120 has 12 forward and 12 reverse gears, giving you lots of choices for different tasks. It also has features like differential lock and mechanical front-wheel drive to help in tricky conditions. The open operator station with a roll-over protection system (ROPS) keeps the driver safe while working.

Quick specs
- Category
- Utility
- Engine Power Output
- 43hp
- Operating Weight
- 3,700 lb
- Transmission
- Power shuttle
At a glance
How the 4120 compares
vs. Utility medianDistribution
Engine Power (hp)
Across all Utility tractors
This model
The 4120 ranks at the 37th percentile for engine power among recorded utility tractors.
Overview
About the John Deere 4120
The John Deere 4120 is a utility tractor made from 2004 to 2014. It's a strong helper on the farm, with a 4-wheel drive system that can handle tough jobs. The tractor has a 43 horsepower engine, which is about average for its size. It uses diesel fuel and has a turbocharger to give it extra power when needed. This tractor is built to be versatile. It has a three-point hitch in the back that can lift up to 3,131 pounds, which is very good for its class. The power take-off (PTO) runs at 540 rpm, letting you use many different tools. The John Deere 4120 has 12 forward and 12 reverse gears, giving you lots of choices for different tasks. It also has features like differential lock and mechanical front-wheel drive to help in tricky conditions. The open operator station with a roll-over protection system (ROPS) keeps the driver safe while working.
Full specifications
Every recorded spec
General
| Manufacturer | John Deere |
|---|---|
| Model | 4120 |
| Category | Utility tractor |
| Type | 4x4 MFWD 4WD |
| Years built | 2004–2014 |
| Operating weight | 3,700lb |
Engine
| Make | John Deere |
|---|---|
| Model | 4024T |
| Power | 43hp |
| Cylinders | 4 |
| Displacement | 148.9ci |
| Bore | 3.39in |
| Stroke | 4.13in |
Transmission
| Type | Power shuttle |
|---|---|
| Forward gears | 12 |
| Reverse gears | 12 |
Chassis & drive
| Chassis | 4x4 MFWD 4WD |
|---|---|
| Drive | 4WD |
| Steering | Hydrostatic Power |
| Brakes | Wet disc |
| Cab | Open with ROPS |
Hydraulics
| Type | Open Center |
|---|
Power take-off
| Rear PTO | Independent |
|---|---|
| PTO speed | 540rpm |
Dimensions
| Length | 128.2in |
|---|---|
| Width | 65.4in |
| Height | 96.9in |
| Operating weight | 3,700lb |
Capacities
| Cooling system | 1.6gal |
|---|
Head to head
4120 vs. Utility median
How the John Deere 4120 compares to other Utility tractors
| Spec | This model | Utility median | Difference | Percentile |
|---|---|---|---|---|
| Engine Power | 43 hp | 55 hp | -22% | 37th |
| Engine Displacement | 149 ci | 183 ci | -19% | 39th |
| Cylinders | 4 | 4 | at median | 50th |
| Forward Gears | 12 | 12 | at median | 50th |
| Operating Weight | 3,700 lb | 5,303 lb | -30% | 32nd |
| Length | 128 in | 137 in | -6% | 39th |
| Width | 65.4 in | 66 in | -1% | 49th |
| Height | 96.9 in | 94.1 in | +3% | 57th |
| 3-Point Hitch Capacity | 3,131 lb | 3,197 lb | -2% | 50th |
Medians and percentiles are computed from the utility tractors in our database with a recorded value for each spec (sample sizes 1,083–5,720 models).
Compare to tractors with similar specs
Commonly compared John Deere tractors
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| John Deere 4044M | 43 hp | 3,770 lb | — | Compare → |
| John Deere 4600 | 43 hp | 3,450 lb | 1999–2003 | Compare → |
| John Deere 930 | 43 hp | 4,806 lb | — | Compare → |
| John Deere 4044R | 43.1 hp | 3,770 lb | 2014+ | Compare → |
| John Deere 940 | 42.9 hp | 5,004 lb | — | Compare → |
Commonly compared tractors with similar horsepower from other brands
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| Allis Chalmers 5045 | 44 hp | 3,850 lb | 1981–1983 | Compare → |
| AGCO ST45 | 44.2 hp | 4,448 lb | — | Compare → |
| Ag King AK4540 | 45 hp | 4,650 lb | — | Compare → |
| Allis Chalmers ED40 | 41 hp | 3,527 lb | — | Compare → |
| Apollo 454 | 45 hp | 4,365 lb | — | Compare → |
Explore
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Gallery
John Deere 4120 photos





FAQ
Common questions
What years was the John Deere 4120 manufactured?
Production of the John Deere 4120 ran from 2004 through 2014.
What type of hydraulic system does the John Deere 4120 use?
Hydraulics on the John Deere 4120 are Open Center.
What hitch category is the John Deere 4120?
The John Deere 4120 uses a Category I hitch with a lift capacity of 3,131 lb.
How powerful is the John Deere 4120?
The John Deere 4120 has an engine power output of 43 hp. It is powered by a 4-cylinder engine displacing 148.9 ci.
What is the working weight of the John Deere 4120?
The operating weight of the John Deere 4120 is approximately 3,700 lb.
What type of transmission does the John Deere 4120 have?
The John Deere 4120 uses a Power shuttle transmission offering 12 forward gears.
What routine service does the John Deere 4120 need?
Regular maintenance for the John Deere 4120 includes checking and changing engine oil, hydraulic fluid, and filters, plus routine inspections as recommended in the owner's manual. Always follow the manufacturer's maintenance schedule for specific intervals and procedures.



