The Kubota F3990 is a 4WD front-mount mower from the F90 series. This mower has been manufactured by Kubota since 2014. The Kubota F3990 is equipped with a 1.5 L four-cylinder diesel engine and hydrostatic transmission with infinite forward and reverse gears.
The Kubota F3990 front-mount mower used the Kubota V1505T engine. It is a 1.5 L, 1,498 cm2, (91.4 cu·in) four-cylinder turbocharged diesel engine with 78.0 mm (3.07 in) of the cylinder bore and 78.0 mm (3.07 in) of the piston stroke. This engine produced 39.6 PS (29.1 kW; 39.0 HP) of output power.
The Kubota F3990 is equipped with power steering, wet disc type brakes, open operator station with two-post ROPS and 61.0 liters (16.1 US gal.; 13.4 Imp. gal) fuel tank.
Following attachments are available for the Kubota F3990 front-mount mower:
- Front-mount Kubota 60 in (1,520 mm) mower deck with 3-blades
- Front-mount Kubota 72 in (1,820 mm) mower deck with 3-blades
Kubota F3990 Specifications
| General Specifications | |
| Model | Kubota F3990 |
| Length | 2,510 mm (98.8 in) |
| Width | 1,980 mm (78 in) |
| Height | 1,980 mm (78 in) |
| Wheel base | 1,300 mm (51.2 in) |
| Weight | 780 kg (1,720 lbs) |
| Fuel tank capacity | 61.0 liters (16.1 US gal.; 13.4 Imp. gal) |
| Battery | 12V |
| Cabin type | Open operator station with two-post ROPS |
| Engine | |
| Engine model | Kubota V1505T |
| Engine type | Four-stroke, liquid-cooled, inline |
| Cylinders | 4 |
| Fuel type | Diesel |
| Displacement | 1.5 L, 1,498 cm2, (91.4 cu·in) |
| Bore and stroke | 78.0 mm X 78.0 mm (3.07 in X 3.07 in) |
| Horsepower | 39.6 PS (29.1 kW; 39.0 HP) |
| Starter | Electric |
| Transmission and chassis | |
| Chassis | 4×4 4WD |
| Steering type | Power |
| Brakes | Wet disc type |
| Transmission model | – |
| Transmission type | Hydrostatic |
| Gears | Infinite forward and reverse |
| Speed | Forward: 20.0 kmh (12.4 mph) Reverse: 11.0 (6.8 mph) |
| Tires | |
| Front tires | Lawn/turf: 24×12-12 |
| Rear tires | Lawn/turf: 18×9.5-8 |
| PTO (Power take-off shaft) | |
| Front PTO type | Independent with hydraulic wet disc clutch |
| Front PTO speed | 2,580 rpm |