Introduction
John Deere 3720 Compact Utility Tractor
The John Deere 3720 is a compact utility tractor produced between 2005 and 2013 at the manufacturer's facility in Augusta, Georgia, USA. Designed for versatility, this model serves a wide range of agricultural and maintenance applications.
Engine Specifications
The tractor is powered by a Yanmar 3TNV84HT liquid-cooled, 3-cylinder turbocharged diesel engine. With a displacement of 1.5 liters and direct fuel injection, it produces 44 horsepower (32.8 kW) at a rated speed of 2600 RPM. The engine delivers a maximum torque of 101.1 lb-ft (137.1 Nm) at 1560 RPM, providing consistent power for demanding tasks.
Transmission and Drivetrain
The 3720 features a 3-range hydrostatic transmission, available in two configurations: the standard Sauer-Danfoss eHydro and the eHydro AutoHST. The standard system uses a two-pedal control with integrated features like Cruise Control, SpeedMatch, MotionMatch, and LoadMatch to optimize engine and ground speed. The AutoHST version offers an automotive-style single-pedal interface. Both systems facilitate infinite forward and reverse speed control, supported by a standard four-wheel drive system and wet disc brakes.
Hydraulics and PTO
The open-center hydraulic system provides a total flow capacity of 13.9 gpm (52.6 lpm), with 8.6 gpm (32.6 lpm) dedicated to implement flow. It is equipped with five valves for external equipment. The tractor includes an independent rear PTO operating at 540 RPM, with an optional mid-mounted PTO available for additional versatility.
Hitch and Dimensions
The rear of the tractor is equipped with a Category I three-point hitch, capable of lifting up to 2,530 lbs (1147 kg) at the link ends. The machine features a 68-inch (172 cm) wheelbase and a total length of 120.2 inches (305 cm). The operator station is standard with a two-post foldable ROPS, with an optional factory cab available for increased protection.
Conclusion
With its combination of a 44-horsepower turbocharged engine, hydrostatic transmission flexibility, and significant hydraulic capacity, the John Deere 3720 is designed to handle varied agricultural duties, ranging from field work to material handling, ensuring reliability for professional and private operators.
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Production Information of John Deere, 3720
- Compact Utility tractor
- Built in Augusta, Georgia, USA
| Manufacturer | John Deere |
|---|
Dimension and Tires Information of John Deere, 3720
| Cab Weight | 3,570 lbs [1619 kg] |
|---|---|
| Wheelbase | 68 inches [172 cm] |
| Height (ROPS) | 93.3 inches [236 cm] |
| Height (hood) | 57 inches [144 cm] |
| Length | 120.2 inches [305 cm] |
| Clearance (rear axle) | 12.2 inches [30 cm] |
| ROPS Weight | 2,900 lbs [1315 kg] |
| Width | 52.4 inches [133 cm] |
| Rear tread | 40.6/45.3/48.9/53.1/56.6 inches [103/115/124/134/143 cm] |
Minimum
| Industrial front | 25x8.5-14 |
|---|---|
| Ag front | 7-14 |
| Lawn/turf front | 25x10.5LL-15 |
| Lawn/turf rear | 41x14-20 |
| Ag rear | 11.2-24 |
| Industrial rear | 15-19.5 |
| Lawn/turf rear | 41x18LL-16.1 |
| Lawn/turf front | 27x8.5-15 |
| Industrial rear | 43x16-20 |
| Industrial front | 27x8.5-15 |
Engine Specifications of John Deere, 3720
- Yanmar 3TNV84HT
- Liquid-cooled
- Turbocharged diesel
- 3-cylinder
| Coolant capacity | 5.6 qts [5.3 L] |
|---|---|
| Fuel system | Direct injection |
| Compression | 18.5:1 |
| Torque | 101.1 lb-ft [137.1 Nm] |
| Rated RPM | 2600 |
| Displacement | 91.5 ci [1.5 L] |
| Power | 44 hp [32.8 kW] |
| Bore/Stroke | 3.3x3.54 inches [84 x 90 mm] |
| Oil capacity | 6 qts [5.7 L] |
| Starter volts | 12 |
| Torque RPM | 1560 |
Transmission Information of John Deere, 3720
Transmission variants 1
- Controlled by two foot pedals and range shift lever. Tractor must be stopped before shifting ranges. Cruise control standard. SpeedMatch allows maximum speed to be limited. MotionMatch allows acceleration rate to be set. LoadMatch allows engine RPMs to be set, tractor will adjust speed to maintain RPMs.
| Transmission | Sauer-Danfoss eHydro |
|---|---|
| Type | Hydrostatic |
| Gears | Infinite forward and reverse (3-range) |
Transmission variants 2
- AutoHST provides an automobile-style control to the eHydro transmission. A single foot pedal controls engine RPMs and transmission speed, with a column-mounted shifter to select forward, neutral, or reverse.
| Transmission | EHydro AutoHST |
|---|---|
| Type | Hydrostatic |
| Gears | Infinite forward and reverse (3-range) |
Mechanical Specs of John Deere, 3720
- Four-wheel drive
- Two-post foldable ROPS. Cab optional.
- Wet disc brakes
| Steering | Power |
|---|
Power Information of John Deere, 3720
| Rear PTO | Independent |
|---|---|
| Mid PTO Type | 2100 |
| Rear PTO Type | 540 |
| Mid PTO | Optional |
Hydraulics Specifications of John Deere, 3720
| Type | Open center |
|---|---|
| Total flow | 13.9 gpm [52.6 lpm] |
| Pump flow | 8.6 gpm [32.6 lpm] |
| Capacity | 6.8 gal [25.7 L] |
| Valves | 5 |
Three-Point Hitch of John Deere, 3720
| Rear Type | I |
|---|---|
| Rear lift (at ends) | 2,530 lbs [1147 kg] |
Electrical System of John Deere, 3720
| Ground | Negative |
|---|---|
| Battery volts | 12 |
| Battery CCA | 500 |
| ROPS Charging amps | 40 |
| Cab Charging amps | 75 |
Where it sits
With 44 HP, the John Deere 3720 sits just above 3520 (37 HP) in John Deere's range. Its power puts it in the 28th percentile of 2000s models in our database (2822 machines).
Frequently asked questions
How much horsepower does the John Deere 3720 have?
The John Deere 3720 delivers 44 HP.
What years was the John Deere 3720 produced?
The John Deere 3720 was produced in 2005-2013.
What engine does the John Deere 3720 have?
The John Deere 3720 is powered by a Turbocharged diesel, 3-cylinder engine.
What transmission does the John Deere 3720 use?
The John Deere 3720 uses a Sauer-Danfoss eHydro transmission.
How much does the John Deere 3720 weigh?
The John Deere 3720 weighs 3,570 lbs [1619 kg].
Is the John Deere 3720 4WD?
The John Deere 3720 is available in 4WD.