Introduction
John Deere 4120 Compact Utility Tractor
The John Deere 4120 is a compact utility tractor produced between 2004 and 2014 at the company's facility in Augusta, Georgia, USA. Designed for versatility, this machine serves as a mid-range solution for agricultural, ranching, and property maintenance tasks.
Engine and Performance
The tractor is powered by a 2.4-liter, 4-cylinder turbocharged diesel engine. It delivers 43.1 horsepower at a rated speed of 2400 RPM. The engine features a liquid-cooling system to maintain optimal operating temperatures under load, with a compression ratio of 20:1.
Transmission and Drivetrain
Operators can choose between two transmission types: the PowrReverser, which provides 12 forward and 12 reverse gears, or the eHydro hydrostatic transmission, which offers infinite speed control in both directions. The tractor is equipped with four-wheel drive and hydrostatic power steering to ensure maneuverability on uneven terrain.
Hydraulics and PTO
The 4120 features an open-center hydraulic system with a total pump flow of 17.1 gallons per minute (64.7 lpm), with 12 gpm dedicated to implement operation. It is equipped with an independent 540 RPM rear PTO, with an optional independent mid-PTO available for front-mounted implements. The Category I rear hitch provides a lift capacity of 3,130 lbs at the ball ends.
Dimensions and Weight
The tractor has a wheelbase of 71.5 inches and an overall length of 128.2 inches. With the Roll-Over Protective Structure (ROPS) installed, it stands 97.2 inches high. The total machine weight is 3,700 lbs, providing a stable platform for heavy-duty attachments.
Conclusion
The John Deere 4120 is a robust, dependable workhorse suitable for operators requiring a balance of compact size and significant hydraulic and lifting performance. Its flexible transmission options and four-wheel drive capability make it well-suited for varied agricultural and landscaping operations.
Production Information of John Deere, 4120
- Compact Utility tractor
- Built in Augusta, Georgia, USA
| Manufacturer | John Deere |
|---|
Dimension and Tires Information of John Deere, 4120
| Max Drawbar | 1,103 lbs [500 kg] |
|---|---|
| Wheelbase | 71.5 inches [181 cm] |
| Height (ROPS) | 97.2 inches [246 cm] |
| Height (hood) | 62 inches [157 cm] |
| Length | 128.2 inches [325 cm] |
| Weight | 3700 lbs [1678 kg] |
| Width | 65.6 inches (R1 tires) [166 cm] |
| Ag front | 8.00-16 |
|---|---|
| Ag rear | 13.6-28 |
Engine Specifications of John Deere, 4120
- John Deere
- Liquid-cooled
- Turbocharged diesel
- 4-cylinder
| Starter power | 2.9 hp [2.2 kW] |
|---|---|
| Displacement | 148.9 ci [2.4 L] |
| Compression | 20:1 |
| Bore/Stroke | 3.386x4.134 inches [86 x 105 mm] |
| Coolant capacity | 6.4 qts [6.1 L] |
| Oil capacity | 7.9 qts [7.5 L] |
| Starter volts | 12 |
| Rated RPM | 2400 |
| Power | 43.1 hp [32.1 kW] |
Transmission Information of John Deere, 4120
Transmission variants 1
| Transmission | PowrReverser |
|---|---|
| Gears | 12 forward and reverse |
| Oil capacity | 41.2 qts [39.0 L] |
Transmission variants 2
| Transmission | EHydro |
|---|---|
| Oil capacity | 38.4 qts [36.3 L] |
| Type | Hydrostatic |
| Gears | Infinite forward and reverse |
- 12-speed
- Hydrostatic
Mechanical Specs of John Deere, 4120
- Four-wheel drive
- ROPS.
| Steering | Hydrostatic power |
|---|
Power Information of John Deere, 4120
| Rear PTO | Independent |
|---|---|
| Mid PTO Type | 2100 |
| Rear PTO Type | 540 |
| Mid PTO | Independent (optional) |
Hydraulics Specifications of John Deere, 4120
| Steering flow | 5.1 gpm [19.3 lpm] |
|---|---|
| Type | Open center |
| Pump flow | 12 gpm [45.4 lpm] |
| Pressure | 2500 psi [172.4 bar] |
| Capacity | 10.3 gal [39.0 L] |
| Total flow | 17.1 gpm [64.7 lpm] |
| Total flow(optional) | 9.6 gal (eHydro) [36.3 L] |
Three-Point Hitch of John Deere, 4120
| Rear Type | I |
|---|---|
| Rear lift (at ends) | 3,130 lbs [1419 kg] |
| Rear lift (at 24"/610mm) | 2,500 lbs [1134 kg] |
Electrical System of John Deere, 4120
| Ground | Negative |
|---|---|
| Battery volts | 12 |
| Battery CCA | 770 |
| Charging system | Alternator |
| Charging amps | 75 |
Where it sits
With 43 HP, the John Deere 4120 sits between 4044M (42 HP) and 4320 (48 HP) in John Deere's range. Its power puts it in the 27th percentile of 2000s models in our database (2822 machines).
Frequently asked questions
How much horsepower does the John Deere 4120 have?
The John Deere 4120 delivers 43 HP.
What years was the John Deere 4120 produced?
The John Deere 4120 was produced in 2004-2014.
What engine does the John Deere 4120 have?
The John Deere 4120 is powered by a Turbocharged diesel, 4-cylinder engine.
What transmission does the John Deere 4120 use?
The John Deere 4120 uses a PowrReverser transmission.
How much does the John Deere 4120 weigh?
The John Deere 4120 weighs 3700 lbs [1678 kg].
Is the John Deere 4120 4WD?
The John Deere 4120 is available in 4WD.