Kubota L3901 Tractor

Manufacturer Kubota
Price -
Model L3901
Equipment Type Compact Utility Tractors
Factory

KUBOTA L3901 POWER

Engine (gross) 37.5hp / 28.0kW
Engine (net) 36.3hp / 27.1kW
Gear PTO (claimed) 32.1hp / 23.9kW
Hydro PTO (claimed) 30.6hp / 22.8kW

ENGINE DETAIL

The Kubota L3901 tractor features a robust 3-cylinder diesel engine with a displacement of 1.8L, delivering a gross power output of 37.5hp at 2700 RPM, making it suitable for various agricultural tasks. Its common rail direct injection fuel system enhances fuel efficiency and ensures reduced emissions, compliant with Tier IV regulations. While this tractor offers reliable performance for small to medium-sized farms, potential users should be aware of the power limitations for larger implements or extensive workloads.

Description Kubota diesel 3-cylinder liquid-cooled
Displacement 111.4ci / 1.8L
Bore/Stroke 3.43x4.03inches / 87x 102 mm
Emissions Tier IV
Power (gross) 37.5hp / 28.0kW
Fuel system common rail direct injection
Rated RPM 2700
Starter electric
Starter volts 12

KUBOTA L3901 ENGINE

The Kubota L3901 is powered by a 1.8L 3-cylinder diesel engine, which offers a balance of efficiency and power for various agricultural tasks. With an 11.1-gallon (42.0L) fuel tank, it ensures extended operational time between refueling, making it suitable for larger jobs without frequent interruptions. However, the compact size may limit its capabilities in heavy-duty applications compared to larger models, so consider your specific power and capacity requirements.

Description Kubota 1.8L 3-cyl diesel
Fuel tank 11.1gal / 42.0L

TRANSMISSIONS OVERVIEW

The Kubota L3901 features an 8-speed synchronized shuttle hydrostatic transmission, providing seamless gear transitions and enhanced control during varying operational tasks. This setup is advantageous for maneuvering in tight spaces and improving productivity in both fieldwork and loader applications. However, while hydrostatic systems offer ease of use, they may require more maintenance than traditional gear transmissions.

Description 8-speed synchronized shuttle hydrostatic

TRANSMISSION 1

The Kubota L3901 features a synchronized shuttle transmission, allowing for smooth gear shifts while providing 8 forward and reverse speeds, enhancing maneuverability in various terrain. The dry disc clutch offers durability and ease of maintenance, though it may require more operator skill to manage than a wet clutch system. Ideal for applications like agricultural work, this setup provides effective performance for both field and transport tasks, although operators should be prepared for the physical demands of shifting gears manually.

Type synchronized shuttle
Gears 8 forward and reverse
Clutch dry disc
Description Four gears (1-4) in two ranges with mechanical shuttle.

TRANSMISSION 2

The Kubota L3901 features a hydrostatic transmission, providing seamless speed control, which enhances maneuverability for various tasks, particularly in tight spaces. Its infinite gear selection across 3 ranges allows for optimized torque application and fuel efficiency, making it suitable for diverse agricultural operations. However, while hydrostatic systems typically require less maintenance, they can be less efficient than traditional gear-driven systems in heavy-duty applications.

Type hydrostatic
Gears infinite (3-range) forward and reverse

MECHANICAL

The Kubota L3901 features a robust 4x4 MFWD drivetrain, enhancing traction for diverse terrains but may incur additional maintenance compared to a 2WD variant. Its power steering allows for easier maneuverability in tight spaces, ideal for small farms or landscaping tasks. The 8-speed synchronized shuttle hydrostatic transmission provides smooth operation during fieldwork, making it user-friendly for operators of varying experience levels, although some may find the hydrostatic system less efficient at high speeds.

Chassis 4x2 2WD*Gear only/4x4 MFWD 4WD
Steering power
Brakes mechanical wet disc
Cab Two-post folding ROPS.
Transmissions 8-speed synchronized shuttle hydrostatic

HYDRAULICS

Type open center
Pressure 2347psi / 161.8bar
Pump flow 6.3gpm / 23.8lpm
Steering flow 3.8gpm / 14.4lpm

TRACTOR HITCH

Rear Type I
Control position control
Rear lift (at ends) 1985lbs / 900kg
Rear lift (at 24 1433lbs / 650kg

POWER TAKE-OFF (PTO)

Rear PTO live
Clutch dual stage dry disc
Rear RPM 540 (1.375)

KUBOTA L3901 TIRES

The Kubota L3901 offers versatile tire options catering to different applications: 2WD and 4WD configurations, with standard agricultural tires providing optimal traction for agricultural use, while turf and industrial tires enhance performance in specific scenarios. The 4WD variant, fitted with larger front tires (7.2-16) and the ability to adapt to turf or industrial tires, is better suited for varied terrains and more robust applications. This adaptability is advantageous for farmers needing maneuverability on soft or uneven land, but the 2WD model may struggle in challenging conditions compared to its 4WD counterpart.

2WD Standard tires (ag) Front: 5.00-15. Rear: 11.2-24
4WD Standard tires (ag) Front: 7.2-16. Rear: 11.2-24
Lawn/turf front 23x8.50-12 (2WD)/25x8.50-14 (4WD)
Lawn/turf rear 13.6-16
Industrial front 27x8.50-15 (4WD)
Industrial rear 15-19.5 (4WD)

DIMENSIONS

Wheelbase 63.3inches / 160cm
Width 55.1inches / 139cm
Height (ROPS) 91.7inches / 232cm
2WD Ground clearance 13.6inches / 34cm
4WD Ground clearance 13.4inches / 34cm
Front tread 43.1inches / 109cm (4WD)
Rear tread 43.8/47.1/50.8inches / 111/119/129 cm

KUBOTA L3901 WEIGHT

2WD Gear 2590lbs / 1174kg
4WD Gear 2767lbs / 1255kg
4WD Hydro 2778lbs / 1260kg

DIMENSIONS & TIRES

The Kubota L3901 has a wheelbase of 63.3 inches, providing stability for various agricultural tasks while maintaining maneuverability. Weighing between 2590 to 2778 pounds, this tractor's weight distribution enhances traction, particularly in 2WD configuration with rear tires sized 11.2-24, suitable for moderate field work. However, the smaller front tires (5.00-15) may limit handling in rough terrain, requiring careful operation in uneven conditions.

Wheelbase 63.3inches / 160cm
Weight 2590 to 2778 pounds
Front tire 5.00-15
2WD Rear tire 11.2-24

ATTACHMENT OVERVIEW

Description Front-end loader Backhoe

KUBOTA LA525 LOADER

Height (to pin) 94.3inches / 239cm
Clearance, dumped bucket 76.2inches / 193cm
Dump reach 25.4inches / 64cm
Dump angle 40°
Reach at ground 63.7inches / 161cm
Rollback angle 31°
Breakout force (at pin) 2462lbs / 1116kg
Breakout force (at 500mm) 1874lbs / 850kg
Lift to full height (at pin) 1131lbs / 513kg
Lift to full height (at 500mm) 855lbs / 387kg
Lift to 1.5m (at pin) 1490lbs / 675kg
Lift to 1.5m (at 500mm) 1182lbs / 536kg
Raise time to height 3.5 s
Bucket dump time 1.7 s
Lowering time 2.3 s
Rollback time 2.2 s

KUBOTA BH77 BACKHOE

Backhoe type Kubota BH77 Backhoe
2-Foot flat digging depth 89.8inches / 228cm
Reach from pivot 124.3inches / 315cm
Loading height 65.7inches / 166cm
Bucket Rotation 180
Bucket force 3421lbs / 1551kg
Dipperstick force 2190lbs / 993kg

ELECTRICAL

Ground negative
Charging system alternator
Charging amps 40
Charging volts 12
Battery CCA 580
Battery volts 12


Last Updated 2025-01-01
Stephen is a passionate tractor hobbyist with a deep-seated love for all things mechanized and agricultural. Growing up in a rural setting, he developed a fascination with these mighty machines that have played a crucial role in shaping the farming industry.

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