John Deere 3720 Specs ( 2005-2013 )
Overview
The John Deere 3720 is a compact utility tractor manufactured between 2005 and 2013 in Augusta, Georgia, featuring a 44 hp Yanmar 1.5L turbocharged three-cylinder diesel engine. It is equipped with a Sauer-Danfoss eHydro three-range hydrostatic transmission and an open center hydraulic system providing a total flow of 13.9 gpm. The tractor is built with a 68-inch wheelbase and supports a variety of configurations including optional cab or foldable ROPS, with weights ranging from 2,900 to 3,570 pounds.
Ideal Applications
Engine Performance and Output:
The liquid-cooled Yanmar 3TNV84HT engine utilizes direct injection and turbocharging to produce 44 hp and 101.1 lb-ft of torque at a rated speed of 2600 RPM.
Hydraulic and Hitch Specifications:
The open center hydraulic system features a pump flow of 8.6 gpm and supports a Category I rear hitch with a rated lift capacity of 2,530 lbs at the ends.
Transmission and Mechanical Layout:
The 3720 is configured with a four-wheel-drive system and an eHydro AutoHST hydrostatic transmission that provides infinite forward and reverse gears across three ranges.
Production
| Description | Compact Utility tractor / Built in Augusta, Georgia, USA |
|---|---|
| Manufacturer | John Deere |
Engine
| Engine type | Yanmar 1.5L 3-cyl diesel |
|---|---|
| Bore/Stroke | 3.3x3.54 inches (84 x 90 mm) |
| Compression | 18.5:1 |
| Coolant capacity | 5.6 qts (5.3 L) |
| Description | Yanmar 3TNV84HT / turbocharged diesel / 3-cylinder / liquid-cooled |
| Displacement | 91.5 ci (1.5 L) |
| Fuel system | direct injection |
| Oil capacity | 6 qts (5.7 L) |
| Power | 44 hp (32.8 kW) |
| Rated RPM | 2600 |
| Starter volts | 12 |
| Torque | 101.1 lb-ft (137.1 Nm) |
| Torque RPM | 1560 |
Transmission
| Description | hydrostatic |
|---|---|
| Gears | infinite forward and reverse (3-range) / infinite forward and reverse (3-range) |
| Transmission | Sauer-Danfoss eHydro / eHydro AutoHST |
| Type | hydrostatic / hydrostatic |
Mechanical
| Cab | Two-post foldable ROPS. Cab optional. |
|---|---|
| Description | Wet disc brakes |
| Drive type | Four-wheel drive |
| Steering | power |
Capacity
| Cab Fuel | 11.8 gal (44.7 L) |
|---|---|
| Hydraulic system | 6.8 gal (25.7 L) |
| ROPS Fuel | 13.5 gal (51.1 L) |
Hydraulics
| Capacity | 6.8 gal (25.7 L) |
|---|---|
| Pump flow | 8.6 gpm (32.6 lpm) |
| Total flow | 13.9 gpm (52.6 lpm) |
| Type | open center |
| Valves | 5 |
Hitch
| Rear lift (at ends) | 2,530 lbs (1147 kg) |
|---|---|
| Rear Type | I |
PTO
| Mid PTO | optional |
|---|---|
| Mid PTO Type | 2100 |
| Rear PTO | independent |
| Rear PTO Type | 540 |
Electrical
| Battery CCA | 500 |
|---|---|
| Battery volts | 12 |
| Cab Charging amps | 75 |
| Ground | negative |
| ROPS Charging amps | 40 |
Dimensions & Tires
| Cab Weight | 3,570 lbs (1619 kg) |
|---|---|
| Clearance (rear axle) | 12.2 inches (30 cm) |
| Height (hood) | 57 inches (144 cm) |
| Height (ROPS) | 93.3 inches (236 cm) |
| Length | 120.2 inches (305 cm) |
| Rear tread | 40.6/45.3/48.9/53.1/56.6 inches (103/115/124/134/143 cm) |
| ROPS Weight | 2,900 lbs (1315 kg) |
| Wheelbase | 68 inches (172 cm) |
| Width | 52.4 inches*Minimum (133 cm) |
| Front tire | 7-14 |
| Rear tire | 11.2-24 |
| Weight | 2900 to 3570 pounds |
| Wheelbase | 68 inches (172 cm) |
| Ag front | 7-14 |
| Ag rear | 11.2-24 |
| Industrial front | 25x8.5-14 / 27x8.5-15 |
| Industrial rear | 15-19.5 / 43x16-20 |
| Lawn/turf front | 27x8.5-15 / 25x10.5LL-15 |
| Lawn/turf rear | 41x14-20 / 41x18LL-16.1 |
3720 Serial Number Location
| Description | Serial number plate above front axle of the John Deere 3720 on right side of tractor. |
|---|
3720 Serial Numbers
| 2005 | 170001 |
|---|---|
| 2006 | 280001 |
| 2007 | 380001 |
| 2008 | 480001 |
| 2009 | 522001 |
| Description | FAQ: How to read a serial number table. |
John Deere 3720 attachments
| Description | 60" mid-mount mower deck / front-end loader / backhoe |
|---|
References
| Description | Commercial & Consumer Equipment Purchasing Guide published in 2007, by John Deere / 3000 Series published in 2008, by John Deere / 3000 Series published in 2009, by John Deere / 3000 Twenty Series Compact Tractors published in 2005, by John Deere / 3000 Twenty Series Tractors Product Information Handbook published in 2004, by John Deere / TWENTY Series Tractors published in 2010, by John Deere |
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Speeds
| Description | With 11.2-24 rear tires. / With 11.2-24 rear tires. |
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