Agriculture 3720 (Older) » Columbus, Elmer, Marlboro, Hammonton, Columbia, NJ
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Agriculture 3720 (Older) / NOT AVAILABLE

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It’s a difference you can tell from the moment you sit down—this is no ordinary compact utility tractor. With the John Deere 3000 Twenty Series, you’ll enjoy a wide range of standard features and options that add convenience, comfort, and efficiency to every job. A rugged PowrReverser™ gear transmission is standard on the 3320 and 3520 Models, or you can opt up to the eHydro™ hydrostatic transmission. The e-Hydro is standard on the 3720 Model. The 3-range eHydro transmission features Twin-Touch™ pedal control which lets you change direction with just a touch of a pedal -- and without clutching, making it ideal for loader work, or when mowing. You’ll also appreciate the standard Cruise Control™ -- a true automotive-type cruise control. Just get up to your desired working speed, set the Cruise Control located on the operator console – and you’ll maintain that speed no matter how uneven the terrain. Throw in additional features like the standard 4WD, Quik-Park Loader, Load-Match™ electronic power management system, and optional deluxe cab and you can see why the 3000 Twenty Series is without equal in this horsepower class.


Manufacturer John Deere
Model 3720
Family ---
Manufacturer Yanmar 3TNV84HT
Engine power (gross), hp (kW) ---
  97/68/EC rated power
Power take-off (PTO) power - gear transmission, hp (kW) ---
PTO power - hydrostatic transmission, hp (kW) ---
Rated engine speed ---
Type ---
Operating range ---
Aspiration Turbo
Cylinders/displacement, cu in. (L) 3 / 91.5 cu in.
  1.5 L
Cylinder liners Cast-in-block
Bore and stroke 33 x 3.54 in.
  84 x 90 mm
Compression ratio 18:1
Lubrication Pressurized
Cooling system Water pump
Air cleaner Dry type with safety element and air restriction indicator
Engine shutoff Key switch
Engine torque at rated speed, lb-ft (N/m) 84.3 lb-ft
  114.3 Nm
Fuel tank capacity (open-station; cab), U.S. gal. (L) Open-13.5; Cab-11.8 U.S. gal.
  Open-51.1; Cab-44.7 L
Type 12 volt
Battery size (CCA) 500
Alternator (12-V), amp Open-40; Cab-75 amp
Starter size, hp (kW) 1.8 hp
  1.4 kW
Fuel system  
Type Direct injection
Injection pump type In-line with electric shutoff
Fuel consumption 2.8 U.S. gal./hr
  10.6 L/hr
*Fuel consumption rate should be used for comparison purposes only ---
Standard transmission; forward/reverse eHydro
Optional transmission; forward/reverse ---
Left-hand reverser ---
On-the-go shifting ---
Direction reverser; forward/reverse No; Twin Touch Pedals
Forward speed ---
Reverse speed ---
Brakes Wet disk
Steering Power steering
Clutch, wet/dry N/A
Clutch disk diameter wet clutch, in. (mm) N/A
Drawbar tongue weight capacity, lb (kg) 882 lb
  400 kg
Axle capacity ---
Front, lb (kg) 1587-3197 lb
  720-1450 kg
Rear, lb (kg) ---
Creeper Optional SpeedMatch
Cruise control Optional
Differential lock Yes
Type Open Center
Pump rated output, gpm (L/min) 13.9 gpm
  52.5 L/min
Steering 5.3 gpm
  20 L/min
Implement 8.6 gpm
  32.5 L/min
Pump type Dual gear
Maximum operating pressure (psi) 2500 psi
Draft control type Position control
Remote control valves available 5
3-point hitch  
Type Category 1
Lift capacity, 24-in. behind link arms, lb (kg) 2200 lb
  999 kg
Lift capacity at lift link ends, lb (kg) 2530 lb
  1149 kg
Power take-off (PTO)  
Standard Rear @ 540
Optional Mid @ 2100
Control Independent
Clutch Multi-disk, wet
Brake (for mid and rear PTO) Multi-disk, wet
Fluid capacities  
Fuel tank, gal. (L) Open-13.5; Cab-11.8 gal.
  Open-51.1; Cab-44.7 L
Cooling system (includes coolant bottle), qt (L) Open-5.3; Cab-7.6 qt
  Open-1.4; Cab-7.0 L
Crankcase with filter, qt (L) 6 qt
  5.7 L
Transmission and hydraulic system gear, gal. (L) N/A
Transmission and hydraulic system hydrostatic, gal. (L) 6.8 gal.
  25.7 L
Front axle gearcase (MFWD axle), gal. (L) 4.7 gal.
  4.5 L
Final drive  
Type Spur Gear
Engage on-the-go rear differential lock Yes
Operator station  
Rollover protective structure OSHA, SAE, ASAE
Type Foldable
Platform - flat/straddle Flat
Gear shift location - console/floor Left Side
Compliance Complies with OSHA, SAE, and CSA standards for roll-over protection
Visibility 360 Degrees
Air conditioning, temperature differential Yes, up to 30 degrees
Doors 2
Platform - flat/straddle Flat
Noise rating 80
Seat suspension system Scissor-link
Two-wheel drive (2WD) dimensions  
Wheelbase, in. (mm) ---
Front tread range, in. (mm) ---
Rear tread range, in. (mm) ---
Minimum rear tread setting, in. (mm) ---
Front axle clearance, in. (mm) ---
Turning radius with brakes, ft (m) ---
Turning radius without brakes, ft (m) ---
Unballasted operating weight, lb (kg) ---
Approximate shipping weight (open-station; cab), lb (kg) ---
Mechanical front-wheel drive (MFWD) dimensions  
Wheelbase, in. (mm) 68 in.
  1727 mm
Front tread range, in. (mm) ---
Front axle clearance, in. (mm) ---
Turning radius with brakes, ft (m) 8.8 ft
  2.68 m
Turning radius without brakes, ft (m) 9.2 ft
  2.8 m
Limited slip differential ---
Unballasted operating weight, lb (kg) ---
Approximate shipping weight (open-station; cab), lb (kg) Open-2900; Cab-3570 lb
  Open-1316; Cab-1619 kg
Standard tires  
2WD ---
Front ---
Rear ---
MFWD ---
Front 7-14 / 6PR R1
Rear 11.2-24 / 6PR /R1
Underhood muffler Yes
Joystick selective control valve (SCV) control Yes
Inboard planetary ---
Axle type ---
Brakes - Type and control Wet Disk