Kubota B2231
The Kubota B2231 is a tractor produced by Kubota. It is equipped with a 68.5 ci 1.1 L engine. The listed engine power is Diesel (net): 20.4 hp / 15.2 kW; Diesel (gross): 22.7 hp / 16.9 kW. Transmission: infinite forward and reverse (3-range). Operating weight: 1874 to 2381 pounds.
Engine Power
Diesel (net): 20.4 hp / 15.2 kW; Diesel (gross): 22.7 hp / 16.9 kW
Fuel & Capacities
7.1 gal
26.9 L
Transmission
infinite forward and reverse (3-range)
Operating Weight
1874 to 2381 pounds
Overview
 | 2018 -
B2 SeriesCompact Utility tractor |
|---|---|
2018 - | |
B2 Series | |
Compact Utility tractor | |
Production | |
|---|---|
Manufacturer | Kubota |
Compact Utility tractor | |
Kubota B2231 Engine | |
|---|---|
Kubota 1.1L 3-cyl diesel | |
Fuel tank | 7.1 gal
26.9 L |
Engine details ...  | |
Kubota B2231 Transmission | |
|---|---|
hydrostatic | |
Transmission details ...  |
Kubota B2231 Power | |
|---|---|
Engine (gross) | 22.7 hp
16.9 kW |
Engine (net) | 20.4 hp
15.2 kW |
PTO (claimed) | 16.8 hp
12.5 kW |
Mechanical | |
|---|---|
Four-wheel drive | |
Differential lock | mechanical rear |
Power steering | |
Wet disc brakes | |
Two-post folding ROPS. Cab optional with air-conditioning. | |
Hydraulics | |
|---|---|
Pressure | 2347 psi
161.8 bar |
Total flow | 8.7 gpm
32.9 lpm |
Tractor hitch | |
|---|---|
Rear Type | I |
Control | position control |
Rear lift (at ends) | 2138 lbs
969 kg |
Power Take-off (PTO) | |
|---|---|
Rear PTO | independent |
Rear PTO Type | 540 (1.375) |
Mid PTO | optional |
Mid PTO Type | 2500 (Kubota 10-tooth #5) |
Dimensions & Tires | |
|---|---|
ROPS Wheelbase | 59.1 inches
150 cm |
Cab Wheelbase | 61.4 inches
155 cm |
Weight | 1874 to 2381 pounds |
Full dimensions and tires ...  | |
Electrical | |
|---|---|
Ground | negative |
Charging system | alternator |
Battery volts | 12 |
Engine
Engine Detail — 68.5 ci / 1.1 L Diesel
Manufacturer | Kubota |
Fuel Type | Diesel |
Configuration | 3-cylinder, liquid-cooled |
Displacement | 68.5 ci
1.1 L |
Bore/Stroke | 3.07x3.09 inches
78 x 78 mm |
Rated Power (net) | 20.4 hp
15.2 kW |
Power (gross) | 22.7 hp
16.9 kW |
Air cleaner | dry element |
Rated RPM | 2500 |
Starter | electric |
Starter volts | 12 |
Transmission
Transmission — infinite forward and reverse (3-range) hydrostatic
Type | hydrostatic |
Gears | infinite forward and reverse (3-range) |
Dimensions
Kubota B2231 Tires |
|---|
Dimensions | |
|---|---|
ROPS Wheelbase | 59.1 inches
150 cm |
Cab Wheelbase | 61.4 inches
155 cm |
ROPS Length | 107.5 inches
273 cm |
Cab Length | 113.7 inches
288 cm |
Width | 48.6 inches
123 cm |
Height (ROPS) | 91.6 inches
232 cm |
Height (cab) | 82.2 inches
208 cm |
ROPS Weight | 1874 lbs
850 kg |
Cab Weight | 2381 lbs
1080 kg |
Ground clearance | 10.4 inches
26 cm |
Front tread | 32.8 to 38.2 inches
83 to 97 cm |
Rear tread | 38.8 to 42.8 inches
98 to 108 cm |
Attachments
Attachment overview | |
|---|---|
137 cm mid-mount mower deck | |
152 cm mid-mount mower deck | |
Front-end loader |
Photos
Kubota B2231
Kubota B2231
Fluids, Capacities & Working Autonomy
Standard fluid requirements, service intervals, and continuous runtime estimates for Kubota B2231.
Engine Crankcase Oil
SAE 15W-40 (Heavy Duty Diesel)
Standard Spec: API CK-4 / CJ-4 Heavy Duty
Service Interval: 150 – 250 Hours
Transmission & Hydraulic System
UTTO (Universal Tractor Transmission Oil)
Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)
Service Interval: 600 – 1000 Hours
Engine Cooling System
50/50 Ethylene Glycol Pre-mix
Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze
Service Interval: 2 Years / 1500 Hours
Kubota B2231 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Kubota B2231.
Converted Equivalents:
Horsepower (HP)0 hp
Kilowatts (kW)0 kW
Metric Horsepower (PS / CV)0 PS
Direct Competitor Comparison
Compare Kubota B2231 against same-era industry alternatives in the same horsepower class.
Current Model
Kubota
Kubota B2231
Engine Power:Diesel (net): 20.4 hp / 15.2 kW; Diesel (gross): 22.7 hp / 16.9 kW
★ Baseline Reference
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