John Deere 3720
Production ended · 4WD
Engine power
44 hp
- Weight
- 2,900 lb
- Engines
- 1 Diesel
- Built
- no record
- Price new
- no record
Power
| Engine | 44 hp unspecified |
|---|---|
| PTO | no record |
| Drawbar | no record |
| Listed power | 44 hp engine basis |
Engines
| Yanmar 1.5L 3-cyl dieselDiesel · 3 cyl | 92 ci |
|---|
Engine details
- Yanmar 1.5L 3-cyl diesel
- Bore × stroke
- 3.3 in × 3.54 in
- Rated speed
- 2,600 rpm
- Rated power
- 44 hp
- Torque
- 101 lb·ft at 1,560 rpm
- Compression
- 18.5:1
- Aspiration
- turbocharged diesel
- Cooling
- liquid-cooled
Transmissions
| Sauer-Danfoss eHydrohydrostatic | infinite forward and reverse (3-range) |
|---|---|
| eHydro AutoHSThydrostatic | infinite forward and reverse (3-range) |
Transmission notes
Sauer-Danfoss eHydro: 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.
eHydro AutoHST: 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.
Weight
| Weight | 2,900 lb unspecified |
|---|
Dimensions
| Wheelbase | 68 in |
|---|---|
| Length | 120.2 in |
| Width | 52.4 in |
| Rear axle clearance | 12.2 in |
Capacities
| Fuel tank | 13.5 gal |
|---|---|
| Hydraulic system | 6.8 gal |
Hydraulics
| System | open center |
|---|---|
| Pump flow | 8.6 gpm |
| Total flow | 13.9 gpm |
| Remote valves | 5 |
Hitch
| Rear hitch category | I |
|---|---|
| Rear lift capacity | 2,530 lb |
PTO
| Rear PTO | independent |
|---|---|
| Rear PTO speeds | 540 |
| Mid PTO | optional |
| Mid PTO speeds | 2100 |
Chassis
| Drive | 4WD |
|---|---|
| Steering | power |
| Brakes | Wet disc brakes |
| Cab | Two-post foldable ROPS. Cab optional |
Tires
| Front | 7-14 |
|---|---|
| Rear | 11.2-24 |
Electrical
| System voltage | 12 V |
|---|---|
| Cold cranking | 500 CCA |
| Ground | negative |
Production
| Factories | Augusta, Georgia, USA |
|---|---|
| Built by | John Deere |
Serial numbers
Serial number plate above front axle of the John Deere 3720 on right side of tractor.
| Year | First serial |
|---|---|
| 2005 | 170001 |
| 2006 | 280001 |
| 2007 | 380001 |
| 2008 | 480001 |
| 2009 | 522001 |
Literature
- Commercial & Consumer Equipment Purchasing Guide John Deere, 2007
- 3000 Series John Deere, 2008
- 3000 Series John Deere, 2009
- 3000 Twenty Series Compact Tractors John Deere, 2005
- 3000 Twenty Series Tractors Product Information Handbook John Deere, 2004
- TWENTY Series Tractors John Deere, 2010
Attachments
- 60" mid-mount mower deck
- front-end loader
- backhoe