The Kubota L3940 is a 4WD compact utility tractor from the L40 series. This tractor was manufactured by Kubota from 2007 to 2013. The Kubota L3940 is equipped with a 2.0 L four-cylinder diesel engine and one of three transmissions: hydrostatic transmission with infinite (3-range) forward and reverse gears, sync shuttle transmission with 8 forward and 8 reverse gears or glide shift transmission with 12 forward and 8 reverse gears.
The Kubota L3940 compact utility tractor used the V2003 engine. It is a 2.0 L, 1,999 cm2, (122.0 cu·in) four-cylinder natural aspirated diesel engine with 83.0 mm (3.27 in) of the cylinder bore and 92.4 mm (3.64 in) of the piston stroke. This engine produced 39 PS (28.7 kW; 38.5 HP) of net output power and 123.7 N·m (12.6 kg·m, 91.2 ft·lb) of torque.
The Kubota L3940 is equipped with hydrostatic power steering, wet disc type brakes, two-post ROPS or Grand Cab (optional) and 50.0 liters (13.2 US gal.; 11 Imp. gal) fuel tank.
Following attachments are available for the Kubota L3940 compact utility tractor:
- Mid-mount Kubota RC72: 72 in (1,820 mm) mower deck with 3-blades
 - Kubota L2184: 84 in (2,130 mm) blade
 - Front-mount Kubota L2194: 62 in (1,570 mm) dual-stage snowblower with hydraulic lift
 - Kubota LA724 loader
 - Kubota BH92 backhoe
 
Kubota L3940 Specifications
| General Specifications | |
| Model | Kubota L3940 | 
| Length | 3,085 mm (121.5 in) | 
| Width | 1,690 mm (66.5 in) | 
| Height | 2,475 mm (97.4 in) | 
| Wheel base | 1,895 mm (74.6 in) | 
| Weight | 1,580 kg (3483.3 lbs) | 
| Fuel tank capacity | 50.0 liters (13.2 US gal.; 11 Imp. gal) | 
| Battery | 12V, CCA: 582A | 
| Cabin type | Two-post ROPS or Grand Cab | 
| Engine | |
| Engine model | V2003 | 
| Engine type | Four-stroke, liquid-cooled, inline | 
| Cylinders | 4 | 
| Fuel type | Diesel | 
| Displacement | 2.0 L, 1,999 cm2, (122.0 cu·in) | 
| Bore and stroke | 83.0 mm X 92.4 mm (3.27 in X 3.64 in) | 
| Horsepower | 39 PS (28.7 kW; 38.5 HP) | 
| Torque | 123.7 N·m (12.6 kg·m, 91.2 ft·lb) | 
| Starter | Electric | 
| Oil capacity: | 8.2 L (8.7 US. qt, 7.2 Imp. qt.) | 
| Coolant capacity: | 7.5 L (7.9 US. qt, 6.6 Imp. qt.) | 
| Transmission and chassis | |
| Chassis | 4×4 MFWD 4WD | 
| Steering type | Hydrostatic power | 
| Brakes | Wet disc type | 
| Transmission model | HST Plus | 
| Transmission type | Hydrostatic | 
| Gears | Infinite (3-range) forward and reverse | 
| Speed | Forward: 25.7 kmh (16 mph) Reverse: 23.2 (14.4 mph) | 
| Transmission oil capacity | 43.2 L (11.4 US. gal, 9.5 Imp. gal.) | 
| Transmission model | FST | 
| Transmission type | Sync shuttle with dry disc clutch | 
| Gears | 8 forward and 8 reverse | 
| Speed | Forward: 25.7 kmh (16 mph) Reverse: 24.5 (15.2 mph) | 
| Transmission oil capacity | 42.8 L (11.3 US. gal, 9.4 Imp. gal.) | 
| Transmission model | GST | 
| Transmission type | Glide shift | 
| Gears | 12 forward and 8 reverse | 
| Speed | Forward: 25.7 kmh (16 mph) Reverse: 24.5 (15.2 mph) | 
| Tires | |
| Front tires | Ag: 8.3-16 | 
| Rear tires | Ag: 14.9-24 | 
| Three-Point Hitch | |
| Caterogy | I | 
| Control type | Position control | 
| Lift capacity (at ends) | 1,750 kg (3,860 lbs) | 
| PTO (Power take-off shaft) | |
| Middle PTO type | Semi-independent (option) | 
| Middle PTO spped | 2,000 rpm | 
| Rear PTO type | Independent | 
| Rear PTO spped | 540 rpm | 
| Hydraulic system | |
| Hydraulic type | Open center | 
| Pressure | 2567 psi (177 bar) | 
| Valves | 2 to 3 | 
| Pump flow | 9.8 gpm (37.1 lpm) | 
| Steering flow | 4.9 gpm (18.5 lpm) | 
| Total flow | 14.7 gpm (55.6 lpm) | 

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