Kubota

Kubota B2231

The Kubota B2231 is a compact utility tractor produced from 2018 onward. It features a Kubota 1.1L 3-cylinder liquid-cooled diesel engine delivering 22.7 hp gross and 20.4 hp net power. The tractor has a hydrostatic transmission with infinite forward and reverse speeds across 3 ranges. It includes four-wheel drive, mechanical rear differential lock, power steering, and wet disc brakes. The B2231 offers a two-post folding ROPS with an optional cab with air-conditioning. Hydraulics provide 2347 psi pressure and 8.7 gpm flow. The tractor hitch is category I with position control and a rear lift capacity of 2138 lbs. PTO options include an independent rear PTO at 540 rpm and an optional mid PTO. Dimensions vary with ROPS or cab configurations, with weights from 1874 to 2381 lbs. Attachments include mid-mount mower decks (137 cm and 152 cm) and a front-end loader (LA424EC). Electrical system is 12 volts with negative ground and alternator charging.
Power22 hp
Founded2018 -
ModelB2231

Technical Specifications

Detailed specifications and technical data for Kubota B2231

Power
Engine (net)20.4 hp (15.2 kW)
PTO (claimed)16.8 hp (12.5 kW)
Engine (gross)22.7 hp (16.9 kW)
Engine
Typediesel
ModelKubota 1.1L 3-cyl diesel
Coolingliquid-cooled
Starterelectric
Cylinders3-cylinder
Fuel tank7.1 gal (26.9 L)
Rated RPM2500
Air cleanerdry element
Bore/Stroke3.07x3.09 inches (78 x 78 mm)
Displacement68.5 ci (1.1 L)
Power (gross)22.7 hp (16.9 kW)
Starter volts12
Rated Power (net)20.4 hp (15.2 kW)
Dimensions
Width48.6 inches (123 cm)
Cab Length113.7 inches (288 cm)
Cab Weight2381 lbs (1080 kg)
Rear tread38.8 to 42.8 inches (98 to 108 cm)
Front tread32.8 to 38.2 inches (83 to 97 cm)
ROPS Length107.5 inches (273 cm)
ROPS Weight1874 lbs (850 kg)
Height (cab)82.2 inches (208 cm)
Cab Wheelbase61.4 inches (155 cm)
Height (ROPS)91.6 inches (232 cm)
ROPS Wheelbase59.1 inches (150 cm)
Ground clearance10.4 inches (26 cm)
Electrical
Groundnegative
Battery volts12
Charging systemalternator
Hydraulics
Pressure2347 psi (161.8 bar)
Total flow8.7 gpm (32.9 lpm)
Mechanical
ROPSTwo-post folding ROPS. Cab optional with air-conditioning.
Power steeringyes
Wet disc brakesyes
Four-wheel driveyes
Differential lockmechanical rear
Production
TypeCompact Utility tractor
ManufacturerKubota
Production years2018 -
Attachments
54" Mower deck54 inches (137 cm), 3-blade, right-discharge, Cut height: 1.5 to 4 inch (3 to 10 cm), Weight: 328 lbs (148 kg)
60" Mower deck60 inches (152 cm), 3-blade, right-discharge, Cut height: 1.5 to 4 inch (3 to 10 cm), Weight: 353 lbs (160 kg)
LA424EC Loader926 lbs lift (full at pin) (420 kg), 44° dump, 25° rollback, 75.4 inches height (at pin) (191 cm), 56.9 inches clearance (dumped) (144 cm)
Front-end loaderyes
137 cm mid-mount mower deck137 cm
152 cm mid-mount mower deck152 cm
Transmission
Typehydrostatic
Gearsinfinite forward and reverse (3-range)
Tractor hitch
Controlposition control
Rear TypeI
Rear lift (at ends)2138 lbs (969 kg)
Power Take-off (PTO)
Mid PTOoptional
Rear PTOindependent
Mid PTO Type2500 (Kubota 10-tooth #5)
Rear PTO Type540 (1.375)