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Kubota B2231

Kubota B2231 tractor
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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.
Kubota B2231compact utility tractor22.7 hphydrostatic transmission1.1L diesel enginePTOhydraulicsdimensionsattachments
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

Type:diesel
Model:Kubota 1.1L 3-cyl diesel
Cooling:liquid-cooled
Starter:electric
Cylinders:3-cylinder
Fuel tank:7.1 gal (26.9 L)
Rated RPM:2500
Air cleaner:dry element
Bore/Stroke:3.07x3.09 inches (78 x 78 mm)
Displacement:68.5 ci (1.1 L)
Power (gross):22.7 hp (16.9 kW)
Starter volts:12
Rated Power (net):20.4 hp (15.2 kW)

Dimensions

Width:48.6 inches (123 cm)
Cab Length:113.7 inches (288 cm)
Cab Weight:2381 lbs (1080 kg)
Rear tread:38.8 to 42.8 inches (98 to 108 cm)
Front tread:32.8 to 38.2 inches (83 to 97 cm)
ROPS Length:107.5 inches (273 cm)
ROPS Weight:1874 lbs (850 kg)
Height (cab):82.2 inches (208 cm)
Cab Wheelbase:61.4 inches (155 cm)
Height (ROPS):91.6 inches (232 cm)
ROPS Wheelbase:59.1 inches (150 cm)
Ground clearance:10.4 inches (26 cm)

Electrical

Ground:negative
Battery volts:12
Charging system:alternator

Hydraulics

Pressure:2347 psi (161.8 bar)
Total flow:8.7 gpm (32.9 lpm)

Mechanical

ROPS:Two-post folding ROPS. Cab optional with air-conditioning.
Power steering:yes
Wet disc brakes:yes
Four-wheel drive:yes
Differential lock:mechanical rear

Production

Type:Compact Utility tractor
Manufacturer:Kubota
Production years:2018 -

Attachments

54" Mower deck:54 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 deck:60 inches (152 cm), 3-blade, right-discharge, Cut height: 1.5 to 4 inch (3 to 10 cm), Weight: 353 lbs (160 kg)
LA424EC Loader:926 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 loader:yes
137 cm mid-mount mower deck:137 cm
152 cm mid-mount mower deck:152 cm

Transmission

Type:hydrostatic
Gears:infinite forward and reverse (3-range)

Tractor hitch

Control:position control
Rear Type:I
Rear lift (at ends):2138 lbs (969 kg)

Power Take-off (PTO)

Mid PTO:optional
Rear PTO:independent
Mid PTO Type:2500 (Kubota 10-tooth #5)
Rear PTO Type:540 (1.375)

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