Overview
The Kubota B2231 is a compact utility farm tractor produced from 2018 to the present, featuring a 1.1L three-cylinder diesel engine with a gross rating of 22.7 horsepower. This four-wheel drive model is equipped with a three-range hydrostatic transmission and offers configurations for either a two-post folding ROPS or an optional air-conditioned cab. Technical specifications include a Category I rear hitch with a 2138-pound lift capacity and a 540 RPM independent rear PTO.
Ideal Applications
Transmission and Drive Configuration:
The B2231 utilizes a hydrostatic transmission with three ranges and infinite gears for both forward and reverse, supported by a four-wheel drive system and mechanical rear differential lock.
Hydraulic and Hitch Performance:
The tractor features a hydraulic system with 8.7 gpm of total flow at 2347 psi, providing a lift capacity of 2138 pounds at the ends of the Category I rear hitch.
Engine and Power Output:
The liquid-cooled Kubota engine is rated at 2500 RPM with a net output of 20.4 horsepower and a claimed PTO output of 16.8 horsepower.
Production
| Description | Compact Utility tractor |
|---|---|
| Manufacturer | Kubota |
Engine
| Engine type | Kubota 1.1L 3-cyl diesel |
|---|---|
| Fuel tank | 7.1 gal (26.9 L) |
| Air cleaner | dry element |
| Bore/Stroke | 3.07x3.09 inches (78 x 78 mm) |
| Description | Kubota / diesel / 3-cylinder / liquid-cooled |
| Displacement | 68.5 ci (1.1 L) |
| Power (gross) | 22.7 hp (16.9 kW) |
| Rated Power (net) | 20.4 hp (15.2 kW) |
| Rated RPM | 2500 |
| Starter | electric |
| Starter volts | 12 |
| Engine (gross) | 22.7 hp (16.9 kW) |
| Engine (net) | 20.4 hp (15.2 kW) |
| PTO (claimed) | 16.8 hp (12.5 kW) |
Transmission
| Description | hydrostatic |
|---|---|
| Gears | infinite forward and reverse (3-range) |
| Type | hydrostatic |
Mechanical
| Cab | Two-post folding ROPS. Cab optional with air-conditioning. |
|---|---|
| Description | Power steering / Wet disc brakes |
| Differential lock | mechanical rear |
| Drive type | Four-wheel drive |
Hydraulics
| Pressure | 2347 psi (161.8 bar) |
|---|---|
| Total flow | 8.7 gpm (32.9 lpm) |
Hitch
| Control | position control |
|---|---|
| Rear lift (at ends) | 2138 lbs (969 kg) |
| Rear Type | I |
PTO
| Mid PTO | optional |
|---|---|
| Mid PTO Type | 2500 (Kubota 10-tooth #5) |
| Rear PTO | independent |
| Rear PTO Type | 540 (1.375) |
Electrical
| Battery volts | 12 |
|---|---|
| Charging system | alternator |
| Ground | negative |
Dimensions & Tires
| Cab Length | 113.7 inches (288 cm) |
|---|---|
| Cab Weight | 2381 lbs (1080 kg) |
| Cab Wheelbase | 61.4 inches (155 cm) |
| Front tread | 32.8 to 38.2 inches (83 to 97 cm) |
| Ground clearance | 10.4 inches (26 cm) |
| Height (cab) | 82.2 inches (208 cm) |
| Height (ROPS) | 91.6 inches (232 cm) |
| Rear tread | 38.8 to 42.8 inches (98 to 108 cm) |
| ROPS Length | 107.5 inches (273 cm) |
| ROPS Weight | 1874 lbs (850 kg) |
| ROPS Wheelbase | 59.1 inches (150 cm) |
| Width | 48.6 inches (123 cm) |
| Cab Wheelbase | 61.4 inches (155 cm) |
| ROPS Wheelbase | 59.1 inches (150 cm) |
| Weight | 1874 to 2381 pounds |
Kubota B2231 attachments
| Description | 137 cm mid-mount mower deck / 152 cm mid-mount mower deck / front-end loader |
|---|