Kubota L3750

Last Updated: July 2024

Overview

The Kubota L3750 is a compact utility tractor designed for versatile farming tasks. Available in 2WD and 4WD configurations, it features a Kubota F2302 2.3L five-cylinder diesel engine producing 41.71 HP at 2700 rpm. The partially synchronized transmission offers 8 forward and reverse gears, and power steering aids maneuverability. Key specifications include a 3-point hitch with 3530 lbs capacity, 540/750 rpm PTO speeds, wet disc brakes, and an open operator station with ROPS. Independent test results from the University of Nebraska Tractor Test Laboratory provide additional details on engine performance, fuel consumption, drawbar power, hydraulic system capabilities, and torque characteristics.

Key Specifications

Category: Utility

Power Output: 41.71

Transmission: Partially synchronized

Drive Type: 2WD or 4WD, depending on the model

Operating Weight: 3650 (2WD); 3915 (4WD)

Fuel Type: Diesel

Kubota L3750 vs. Similar Tractors

Power Output

Average

Greater than 43% of similar tractors.

Hitch Capacity

Average

Greater than 64% of similar tractors.

Operating Weight

Excellent

Greater than 95% of similar tractors.

Technical Specifications

Engine

Manufacturer: Kubota
Model: Kubota F2302
Cooling Type: Liquid-cooled
Cylinder Orientation: Inline
Valve Configuration: -
Fuel Type: Diesel
Induction Type: Naturally aspirated
Cylinders: 5
Displacement (ci): 142
Bore (in): 3.31
Stroke (in): 3.19
Rated RPM: 2700
Power Output (hp): 41.71

Transmission

Type: Partially synchronized
Forward Gears: 8
Reverse Gears: 8
Total Gears: -

Dimensions

Length (in): 128.3
Width (in): 65.7
Height (in): 59.8
Operating Weight (lb): 3650 (2WD); 3915 (4WD)

Power Take-Off (PTO)

PTO Type: Live
PTO Speed 1 (rpm): 540
PTO Speed 2 (rpm): 750
PTO Speed 3 (rpm): -

Miscellaneous

Chassis: 4x2 2WD or 4x4 MFWD 4WD
Drive Type: 2WD or 4WD, depending on the model
Steering Type: Power
Coolant Capacity (qts): 7.8
Front Tire Diameter (in): Unknown for 2WD; Unknown for 4WD
Front Tire Width (in): Unknown for 2WD; Unknown for 4WD
Rear Tire Diameter (in): 28
Rear Tire Width (in): -
Front/Rear Rim Diameter (in): -
Tire Type: Agricultural
Manufacture - End Year: 1990
Hitch Type: Three-Point Hitch
Hitch Category: I
Hitch Position: Rear
Hitch Capacity (lb): 3530
Operator Station Type: Open operator station with two-post ROPS
Starter Type: Electric
Brake Type: Wet disc
Hydraulic System Type: Open center

Test Results

Nebraska Tractor Test Laboratory - Test Date: March 25, 1985

Maximum Power and Fuel Consumption

Maximum Power: 46.02 HP (34.34 kW) at 2700 rpm
Fuel Consumption at Maximum Power: 3.30 Gal/hr (12.49 l/h) with a fuel efficiency of 0.543 lb/hp.hr (0.330 kg/kW.h)

Drawbar Performance

Power at Rated Engine Speed: 40.38 HP (30.11 kW) with a drawbar pull of 3217 lbs (14.31 kN)
Speed: 3.88 mph (6.24 km/h) at rated engine speed
Fuel Consumption at Rated Speed: 3.21 Gal/hr (12.15 l/h) with a fuel efficiency of 0.563 lb/hp.hr (0.343 kg/kW.h)

Torque and Engine Performance

Maximum Torque: 130 lb.-ft. (176 Nm) at 1630 rpm
Torque Rise: Not specified

Hydraulic Performance

Pump Delivery Rate: 7.3 GPM (27.6 l/min) at rated engine speed
Hydraulic Power: Not specified

Overall Efficiency

Fuel Efficiency at Standard PTO Speed (1000 rpm): Not specified
Fuel Consumption: Not specified

Nebraska Tractor Test Lab. (1985). Test 1555: Kubota L3750 FWD and 2WD Diesel 8-Speed. University of Nebraska-Lincoln. Retrieved from https://digitalcommons.unl.edu/tractormuseumlit/1866