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Kubota L3901 Tractor
The
Kubota L3901 is a compact utility tractor from Standard L series. This model was
manufactured between 2014 and 2021. The tractor was designed in 2 versions:
L3901F (2-wheel drive) or L3901DT (4-wheel drive).
The Kubota L3901 powerline system components: a 111.4 cu.in (1.8L)
Kubota D1803-CR-E4 3-cylinder direct injection liquid-cooled diesel
engine with a rated power of 37.5 hp (28.1 kW), and synchronized shuttle
transmission with 8 forward and 8 reverse gears. The maximum travel
speed (forward/reverse): 13.2 mph (21.2 km/h) and 13.1 mph (21.1 km/h).
The open center hydraulic system includes a gear pump with a flow rate
of 6.3 gal/min (23.9 l/min). The hydraulic pressure is 162 bar (2350
psi). The 2WD models are equipped with 5.00x15 front tires and 11.2x24
rear tires. The 7.2x16 or 27x8.50-15 front tires and 11.2x24 or 15x19.5
rear tires are used for 4WD tractors. The wheelbase is 63.3 inches (1610
mm). Compatible attachments for the tractor: a
Kubota LA525 front-end
loader with lift capacity to full height of 1131 lbs (513 kg), and
Kubota BH77 backhoe with 2-ft flat digging depth of 89.8 inches (2280
mm).
| Engine Model |
Kubota D1803-CR-E4 |
| Engine Type |
4-cycle vertical direct injection diesel |
| Number of Cylinders |
3 |
| Total Displacement, cu in (L) |
111.4 (1.83) |
| Cylinder Bore, in (mm) |
3.43 (87.0) |
| Piston Stroke, in (mm) |
4.03 (102.4) |
| Aspiration |
Naturally aspirated |
| Rated Engine Power, hp (kW) |
37.5 (28.1) |
| Rated Engine Speed, rpm |
2700 |
| Low Idle Speed, rpm |
900 |
| Maximum Torque, Nm (lb-ft) |
115.8 (85.4) |
| Torque Speed, rpm |
1500 |
| Compression Ratio |
23.8:1 |
| Firing Order |
1-2-3 |
| Fuel System |
Common rail direct injection |
| Fuel System Control |
Electronic |
| Lubricating system |
Forced lubrication by pump |
| Cooling system |
Forced circulation with water pump |
| Emission Level |
Tier 4 Final |
| Fuel Tank Capacity, gal (L) |
11.0 (42.0) |
| Oil Capacity, qts (L) |
7.1 (6.7) |
| Coolant Capacity, qts (L) |
6.3 (6.0) |
| Electrical System Rating, Volts |
12 |
| Charging System |
Alternator |
| Alternator Rating, Amps |
40 |
| PTO Operational Type |
Transmission |
| PTO Horsepower, hp (kW) |
32.1 (23.9) |
| PTO Clutch |
Dry disc |
| PTO Speed, rpm |
540 |
| PTO / Engine Speed, rpm |
540/2425 |
| Transmission Type |
Synchro-Shuttle |
| Gearbox Type |
8F/8R, gear shift |
| Number of Forward Gears |
8 |
| Number of Reverse Gears |
8 |
| Clutch Type |
Dry disc |
| Oil Capacity (2WD), qts (L) |
29.7 (28.0) |
| Oil Capacity (4WD), qts (L) |
30.2 (28.5) |
| Maximum Forward Speed, mph (kph) |
13.2 (21.2) |
| Maximum Reverse Speed, mph (kph) |
13.1 (21.1) |
| Drive Wheels |
2WD/4WD |
| Steering Configuration |
Front Steer |
| Steering System |
Integral power steering |
| Brake Type |
Wet disc |
| Front Tire Size (2WD) |
5.00x15 |
| Front Tire Size (4WD) |
7.2x16 |
| Rear Tire Size |
11.2x24 |
| Front Tire Size (Industrial) |
27x8.50-15 |
| Rear Tire Size (Industrial) |
15x19.5 |
| Front Tread (2WD), in (mm) |
41.3 (1050) |
| Front Tread (4WD), in (mm) |
43.1 (1095) |
| Rear Tread, in (mm) |
43.8-50.8 (1115-1290) |
| Hydraulic System Type |
Open Center |
| Main Hydraulic Pump Type |
Gear |
| Implement Pump Flow, gpm (Lpm) |
6.3 (23.9) |
| Steering Pump Flow, gpm (Lpm) |
3.8 (14.5) |
| Hydraulic Pressure, Bar (psi) |
162 (2350) |
| Number of Standard Remote Valves |
1/3 |
| 3-Point Hitch Category |
Category 1 |
| Draft Sensing or Lift Control |
Position Control |
| Rear Lift Capacity at 24" (0.6m) behind pin, lb (kg) |
1435 (651) |
| Rear Lift Capacity at pin, lb (kg) |
1998 (906) |
| Wheelbase, in (mm) |
63.3 (1610) |
| Length (2WD), in (mm) |
110.6 (2810) |
| Length (4WD), in (mm) |
107.9 (2740) |
| Height (ROPS), in (mm) |
91.7 (2330) |
| Height (Steering Wheel), in (mm) |
58.1 (1475) |
| Overall Width, in (mm) |
55.1 (1400) |
| Ground Clearance (2WD), in (mm) |
13.6 (345) |
| Ground Clearance (4WD), in (mm) |
13.4 (340) |
| Turning Radius (2WD), in (mm) |
94.5 (2400) |
| Turning Radius (4WD), in (mm) |
98.4 (2500) |
| Weight (2WD), lb (kg) |
2590 (1175) |
| Weight (4WD), lb (kg) |
2765 (1255) |
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| Farm Tractors Technical Specifications |
