Overview
The Kubota L3750 is a compact utility farm tractor manufactured between 1984 and 1990 in 2WD and 4WD variants. It is equipped with a 2.3L 5-cylinder diesel engine rated at 45 hp and an 8-speed partially synchronized transmission with 8 forward and reverse gears. The tractor features a Category I rear hitch with a lift capacity of 3,525 lbs at the ends and a live rear PTO.
Ideal Applications
Nebraska Tractor Test 1555 Data:
In official testing, the diesel 4WD variant recorded a maximum drawbar pull of 4,861 lbs and a maximum drawbar power of 30.15 hp with fuel consumption between 2.1 and 2.3 gallons per hour.
Hydraulic and Hitch Specifications:
The open center hydraulic system provides a pump flow of 8.7 gpm at 2500 psi, supporting a rear lift capacity of 2,650 lbs when measured 24 inches from the ends.
Chassis and Mechanical Configuration:
The tractor is built on a 76.4-inch wheelbase and features power steering, mechanical wet disc brakes, and an operating weight between 3,650 and 3,915 pounds depending on the configuration.
Production
| Description | Compact Utility tractor |
|---|---|
| Manufacturer | Kubota |
Engine
| Engine type | Kubota 2.3L 5-cyl diesel |
|---|---|
| Air cleaner | dual dry element |
| Bore/Stroke | 3.3x3.2 inches (84 x 81 mm) |
| Coolant capacity | 8 qts (7.6 L) |
| Description | Kubota F2302-D1-L / diesel / 5-cylinder / liquid-cooled |
| Displacement | 142 ci (2.3 L) |
| Oil capacity | 12 qts (11.4 L) |
| Power | 45 hp (33.6 kW) |
| Rated RPM | 2500 |
| Starter volts | 12 |
| Drawbar (tested) | 30.15 hp (22.5 kW) |
| PTO (claimed) | 37 hp (27.6 kW) |
| PTO (tested) | 36.96 hp (27.6 kW) |
Transmission
| Clutch | dual dry plates |
|---|---|
| Gears | 8 forward and reverse |
| Oil capacity | 42.4 qts (40.1 L) |
| Transmission type | 8-speed partially synchronized |
| Type | partially synchronized |
Mechanical
| Description | Mechanical wet discs brakes / Two-post ROPS with optional sunshade. |
|---|---|
| Drive | 4x2 2WD (L3750F) |
| Steering | power |
Capacity
| Fuel | 15.3 gal (57.9 L) |
|---|---|
| Hydraulic system | 10.6 gal (40.1 L) |
Hydraulics
| Capacity | 10.6 gal (40.1 L) |
|---|---|
| Pressure | 2500 psi (172.4 bar) |
| Pump flow | 8.7 gpm (32.9 lpm) |
| Type | open center |
| Valves | 0 to 2 |
Hitch
| Rear lift (at 24"/610mm) | 2,650 lbs (1202 kg) |
|---|---|
| Rear lift (at ends) | 3,525 lbs (1598 kg) |
| Rear Type | I |
PTO
| Rear PTO | live |
|---|---|
| Rear PTO Type | 540/750 |
Electrical
| Battery volts | 12 |
|---|---|
| Ground | negative |
Dimensions & Tires
| Front tread | 48 to 72 inches (2WD) (121 to 182 cm) / 52 inches (4WD) (132 cm) |
|---|---|
| Height (steering wheel) | 60.2 inches (152 cm) |
| Length | 128.5 inches (326 cm) |
| Rear tread | 52 to 76 inches (132 to 193 cm) |
| Weight | 3,650 lbs (L3750F) (1655 kg) |
| Wheelbase | 76.4 inches (194 cm) |
| Width | 65.8 inches (167 cm) |
| Front tire | 6.50-16 |
| Rear tire | 13.6-28 |
| Weight | 3650 to 3915 pounds |
| Wheelbase | 76.4 inches (194 cm) |
| Ag front | 6.50-16 (2WD) / 6.00-16 (2WD) |
| Ag rear | 13.6-28 / 12.4-28 |
| Industrial front | 9.00-10 (2WD) |
| Lawn/turf rear | 18.4-16.1 (2WD) |
Kubota L3750 attachments
| Description | front-end loader / backhoe |
|---|
Nebraska Tractor Test 1555
| Description | Diesel 8-speed 4WDMarch 25 - April 11, 1985Link: Nebraska Tractor Test 1555 file / PTO performance / Drawbar performance |
|---|---|
| Fuel use | 2.2 gal/hour (8.3 l/hour) / 2.1 gal/hour (7.9 l/hour) / 2.3 gal/hour (8.7 l/hour) |
| Max power | 30.15 hp (22.5 kW) |
| Max pull | 4,861 lbs (2204 kg) |
| Power at rated engine speed | 36.96 hp (27.6 kW) |
| Power at rated PTO speed | 36.81 hp (27.4 kW) |
References
| Description | 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. |
|---|
Variants
| L3750DT | 4WD |
|---|---|
| L3750F | 2WD |