Kubota L3750
The Kubota L3750 is a tractor produced by Kubota. It is equipped with a 142 ci 2.3 L engine. The listed engine power is Diesel (listed): 45 hp / 33.6 kW. Transmission: 8 forward and reverse. Drive type: 4x2 2WD (L3750F). Operating weight: 3,650 lbs (L3750F) 1655 kg.
Engine Power
Diesel (listed): 45 hp / 33.6 kW
Drive & Traction
4x2 2WD (L3750F)
Fuel & Capacities
15.3 gal
57.9 L
Transmission
8 forward and reverse
Operating Weight
3,650 lbs (L3750F)
1655 kg
Overview
 | 1984 - 1990
L SeriesCompact Utility tractor
L Series
Compact Utility tractor |
|---|
Production | |
|---|---|
Manufacturer | Kubota |
Compact Utility tractor | |
Variants | |
|---|---|
L3750F | 2WD |
L3750DT | 4WD |
Kubota L3750 Engine | |
|---|---|
Kubota 2.3L 5-cyl diesel | |
Engine details ...  |
Kubota L3750 Transmission | |
|---|---|
8-speed partially synchronized | |
Transmission details ...  |
Kubota L3750 Power | |
|---|---|
Engine | 45 hp
33.6 kW |
PTO (claimed) | 37 hp
27.6 kW |
Drawbar (tested) | 30.15 hp
22.5 kW |
PTO (tested) | 36.96 hp
27.6 kW |
Performance test details ...  | |
Mechanical | |
|---|---|
Drive | 4x2 2WD (L3750F) |
4x4 MFWD 4WD | |
Steering | power |
Mechanical wet discs brakes | |
Two-post ROPS with optional sunshade. | |
Capacity | |
|---|---|
Fuel | 15.3 gal
57.9 L |
Hydraulic system | 10.6 gal
40.1 L |
Hydraulics | |
|---|---|
Type | open center |
Capacity | 10.6 gal
40.1 L |
Pressure | 2500 psi
172.4 bar |
Valves | 0 to 2 |
Pump flow | 8.7 gpm
32.9 lpm |
Tractor hitch | |
|---|---|
Rear Type | I |
Rear lift (at ends) | 3,525 lbs
1598 kg |
Rear lift (at 24"/610mm) | 2,650 lbs
1202 kg |
Power Take-off (PTO) | |
|---|---|
Rear PTO | live |
Rear PTO Type | 540/750 |
Dimensions & Tires | |
|---|---|
Wheelbase | 76.4 inches
194 cm |
Weight | 3650 to 3915 pounds |
Front tire | 6.50-16 |
Rear tire | 13.6-28 |
Full dimensions and tires ...  | |
Electrical | |
|---|---|
Ground | negative |
Battery volts | 12 |
References | |
|---|---|
 | |
Backhoes published in 1992, by Kubota | |
Backhoes published in 1994, by Kubota | |
Front Loaders published in 1988, by Kubota | |
Front Loaders B, L and M-Series published in 1994, by Kubota* | |
Product Catalog published in 1990, by Kubota | |
*Publication contains known errors. |
Engine
Engine Detail — 142 ci / 2.3 L Diesel
Manufacturer | Kubota F2302-D1-L |
Fuel Type | Diesel |
Configuration | 5-cylinder, liquid-cooled |
Displacement | 142 ci
2.3 L |
Bore/Stroke | 3.3x3.2 inches
84 x 81 mm |
Power | 45 hp
33.6 kW |
Air cleaner | dual dry element |
Rated RPM | 2500 |
Starter volts | 12 |
Oil capacity | 12 qts
11.4 L |
Coolant capacity | 8 qts
7.6 L |
Transmission
Transmission — 8 forward and reverse partially synchronized
Type | partially synchronized |
Gears | 8 forward and reverse |
Clutch | dual dry plates |
Oil capacity | 42.4 qts
40.1 L |
 | |
Dimensions
Kubota L3750 Tires | |
|---|---|
Ag front | 6.50-16 (2WD) |
9.5-16 (4WD) | |
Ag rear | 13.6-28 |
Ag front | 6.00-16 (2WD) |
8.3-16 (4WD) | |
Ag rear | 12.4-28 |
14.9-24 | |
Lawn/turf rear | 18.4-16.1 (2WD) |
Industrial front | 9.00-10 (2WD) |
Dimensions | |
|---|---|
Wheelbase | 76.4 inches
194 cm |
Length | 128.5 inches
326 cm |
Width | 65.8 inches
167 cm |
Height (steering wheel) | 60.2 inches
152 cm |
Weight | 3,650 lbs (L3750F)
1655 kg |
3,915 lbs (L3750DT)
1775 kg | |
Front tread | 48 to 72 inches
121 to 182 cm (2WD) |
Front tread | 52 inches
132 cm (4WD) |
Rear tread | 52 to 76 inches
132 to 193 cm |
Tests
Nebraska Tractor Test 1555 | |
|---|---|
Diesel 8-speed 4WD
March 25 - April 11, 1985
Link: Nebraska Tractor Test 1555 file | |
PTO performance | |
Power at rated engine speed | 36.96 hp
27.6 kW |
Fuel use | 2.2 gal/hour
8.3 l/hour |
Power at rated PTO speed | 36.81 hp
27.4 kW |
Fuel use | 2.1 gal/hour
7.9 l/hour |
Drawbar performance | |
Max power | 30.15 hp
22.5 kW |
Fuel use | 2.3 gal/hour
8.7 l/hour |
Max pull | 4,861 lbs
2204 kg |
Attachments
Attachment overview | |
|---|---|
Kubota BF900 loader | |
Kubota LA950A loader | |
Backhoe |
Kubota L4540 Backhoe | |
|---|---|
Backhoe type | Kubota L4540 Backhoe |
Transport height | 105 inches
266 cm |
Bucket width | 13 inches
33 cm |
18 inches
45 cm | |
24 inches
60 cm | |
30 inches
76 cm | |
Digging depth | 123 inches
312 cm |
Reach from pivot | 167 inches
424 cm |
Loading height | 100 inches
254 cm |
Bucket force | 3980 lbs
1805 kg |
Dipperstick force | 1675 lbs
759 kg |
Kubota L4540A Backhoe | |
|---|---|
Backhoe type | Kubota L4540A Backhoe |
Transport height | 103.2 inches
262 cm |
Bucket width | 13 inches
33 cm |
18 inches
45 cm | |
24 inches
60 cm | |
30 inches
76 cm | |
36 inches
91 cm | |
Digging depth | 135.5 inches
344 cm |
Reach from pivot | 167.4 inches
425 cm |
Loading height | 98.6 inches
250 cm |
Bucket Rotation | 180° |
Swing Arc | 180° |
Bucket force | 3450 lbs
1564 kg |
Dipperstick force | 2740 lbs
1242 kg |
Photos
Kubota L3750
Recommended Implements & Sizing Guide
Engineering recommendations for Kubota L3750 based on its 45 HP power envelope and ASAE agricultural standards.
| Implement & Operation | Recommended Size | Workload Rating | Engineering Notes |
|---|---|---|---|
Moldboard PlowPrimary Tillage | 2 to 3 Bottom (14-16")2 - 3 铧 (35-40 cm) | Medium Duty | Standard utility farm tillage. |
Rotary Cutter / MowerMowing & Clearing | 6 ft (72 in)1.8 m | Medium Duty | Medium pasture clearing; rear slip-clutch recommended. |
Rotary TillerSeedbed Prep | 66 to 72 in165 - 180 cm | Medium Duty | Standard utility tiller; slip clutch protection required. |
Disc HarrowSecondary Tillage | 7 to 8 ft Tandem Disc2.1 - 2.4 m 对开双排耙 | Medium Duty | Field leveling and clod breaking behind plows. |
Hay BalerHay & Forage | Small Square Baler (14x18")小方捆打捆机 (36x46 cm) | Medium Duty | Classic 2-string baler for horse and small livestock hay. |
Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.
Fluids, Capacities & Working Autonomy
Standard fluid requirements, service intervals, and continuous runtime estimates for Kubota L3750.
Estimated Continuous Field Runtime: 6.5 hrs
Approximately 6.5 hours of continuous field operation at ~75% rated power on a full tank (15.3 gal / 57.9 L).
Estimated 75% Load Fuel Burn~2.3 gal/hr (8.9 L/hr)
Engine Crankcase Oil
SAE 15W-40 (Heavy Duty Diesel)
Standard Spec: API CK-4 / CJ-4 Heavy Duty
Service Interval: 150 – 250 Hours
Transmission & Hydraulic System
UTTO (Universal Tractor Transmission Oil)
Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)
Service Interval: 600 – 1000 Hours
Engine Cooling System
50/50 Ethylene Glycol Pre-mix
Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze
Service Interval: 2 Years / 1500 Hours
Kubota L3750 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Kubota L3750.
Converted Equivalents:
Horsepower (HP)45 hp
Kilowatts (kW)33.6 kW
Metric Horsepower (PS / CV)45.6 PS
Direct Competitor Comparison
Compare Kubota L3750 against same-era industry alternatives in the same horsepower class.
Current Model
Kubota
Kubota L3750
Engine Power:Diesel (listed): 45 hp / 33.6 kW
★ Baseline Reference
International HarvesterMarket Competitor
International Harvester 404
Engine Power:40.8
Production Years:1961 - 1968
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