The Kubota B2231 is a 4WD compact utility tractor from the B2 series. This tractor has been manufactured by the Kubota since 2018. The Kubota B2231 is equipped with a 1.1 L three-cylinder diesel engine and one of two transmissions: gear type transmission (B2231DB version) with 9 forward and 9 reverse gears or hydrostatic transmission with infinite (3-range) forward and reverse.
The Kubota B2231 compact utility tractor used the Kubota D1105 engine. It is a 1.1 L, 1,123 cm2, (68.5 cu·in) three-cylinder natural aspirated diesel engine with 78.0 mm (3.07 in) of the cylinder bore and 78.4 mm (3.09 in) of the piston stroke. This engine produced 23 PS (16.9 kW; 22.7 HP) at 2,500 rpm of maximum output power.
The Kubota B2231 is equipped with power steering, multi-plate wet disc brakes, “Bi-speed” turn mechanism, open operator station with two-post ROPS (B2231HDB) or Cab (B2231HDBC) and 27.0 liters (7.1 US gal.; 5.9 Imp. gal) fuel tank.
Following attachments are available for the Kubota B2231 compact utility tractor:
- Mid-mount Kubota: 54 in (1,370 mm) mower deck with 3-blades
- Mid-mount Kubota: 60 in (1,520 mm) mower deck with 3-blades
- Kubota LA424EC loader
Kubota B2231 Specifications
| General Specifications | |
| Model | Kubota B2231 |
| Length | ROPS: 2,730 mm (107.5 in) Cab: 2,887 mm (113.7 in) |
| Width | 1,234 mm (48.6 in) |
| Height | ROPS: 2,327 mm (91.6 in) Cab: 2,087 mm (82.2 in) |
| Wheelbase | ROPS: 1,500 mm (59.1 in) Cab: 1,560 mm (61.4 in) |
| Weight | B2231DB: 755 kg (1,664 lbs) B2231HDB: 785 kg (1,730 lbs) B2231HDBC: 1,015 kg (2,238 lbs) |
| Fuel tank capacity | 27.0 liters (7.1 US gal.; 5.9 Imp. gal) |
| Battery | 12V |
| Cabin type | Open operator station with two-post ROPS or Cab (option) |
| Engine | |
| Engine model | Kubota D1105 |
| Engine type | Four-stroke, liquid-cooled, inline |
| Cylinders | 3 |
| Fuel type | Diesel |
| Displacement | 1.1 L, 1123 cm2, (68.5 cu·in) |
| Bore and stroke | 78.0 mm X 78.4 mm (3.07 in X 3.09 in) |
| Horsepower | 23 PS (16.9 kW; 22.7 HP) at 2,500 rpm |
| Starter | Electric |
| Transmission and chassis | |
| Chassis | 4×4 MFWD 4WD |
| Steering type | Power |
| Brakes | Multi plate wet disc |
| Differential lock | Mechanical rear |
| Transmission model | – |
| Transmission type | Gear type |
| Gears | 9 forward and 9 reverse |
| Speed | Forward: 20.1 kmh (12.5 mph) Reverse: 18.4 (11.4 mph) |
| Transmission model | – |
| Transmission type | Hydrostatic |
| Gears | Infinite (3-range) forward and reverse |
| Speed | Forward: 21.7 kmh (13.5 mph) Reverse: 17.3 (10.8 mph) |
| Tires | |
| Front tires | Ag: 6-12 Lawn/turf: 22×8.50-12 |
| Rear tires | Ag: 9.5-16 Lawn/turf: 31×13.5-15 |
| Three-Point Hitch | |
| Caterogy | I |
| Control type | Position control |
| Lift capacity (at ends) | 970 kg (2,139 lbs) |
| PTO (Power take-off shaft) | |
| Middle PTO type | Optional |
| Middle PTO spped | 2,500 rpm |
| Rear PTO type | Independent |
| Rear PTO spped | 540 rpm |
| Hydraulic system | |
| Hydraulic type | Open center |
| Pump flow | 8.7 gpm (32.9 lpm) |
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