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Kubota B1241 Specifications
The Kubota B1241 sub-compact utility tractor from B1 Series was manufactured between 2018 and 2025. The Kubota B1241 tractor is powered by Kubota D1105 4-cycle vertical 3-cylinder indirect injection naturally aspirated liquid-cooled diesel engine. A 68.6 cubic inches (1.1 L) engine has a cylinder bore of 3.07" (78 mm), piston stroke of 3.09" (78.4 mm), and rated power of 21.5 Hp (15.8 kW).
This model is fitted with a gear shift transmission with 9 forward and 3 reverse gears. The Kubota B1241 is equipped with a power steering system, transmission PTO type, wet disc brakes, 6.00x12 (AG) or 23x10.50-12 (Turf) front tyres, and 9.50x16 (AG) or 280/70R18 (Turf) rear tyres. The operating weight is 1725 lbs (785 kg). The tractor is compatible with Kubota LA213 front-end loader.
| Engine Specs |
Engine Model ................. Kubota D1105
Engine Type ................. 4-cycle vertical liquid-cooled diesel
Number of Cylinders ................. Three
Displacement, cu.in (L) ................. 68.6 (1.12)
Cylinder Bore, in (mm) ................. 3.07 (78.0)
Piston Stroke, in (mm) ................. 3.09 (78.4)
Aspiration Type ................. Naturally aspirated
Rated Engine Power, hp (kW) ................. 21.5 (15.8)
Rated Engine Speed, rpm ................. 2600
Maximum Torque, Nm (lb-ft) ................. 71.7 (51.9)
Torque Speed, rpm ................. 2000
Idle Speed, rpm ................. 1000-2700
Compression Ratio ................. 24:1
Firing Order ................. 1-2-3
Combustion Chamber ................. Spherical type (E-TVCS)
Fuel System ................. Indirect injection
Fuel System Control ................. Mechanical
Lubricating System ................. Forced lubrication by gear pump
Cooling System ................. Liquid-cooled
Air Cleaner Type ................. Dry element
Fuel Tank Capacity, gal (L) ................. 6.9 (26.0)
Oil Capacity, qts (L) ................. 3.3 (3.1)
Coolant Capacity, qts (L) ................. 4.1 (3.9)
Electrical System Rating, Volts ................. 12
Charging System ................. Alternator
| Power Take-Off |
PTO Operational Type ................. Transmission
PTO Power, hp (kW) ................. 19.4 (14.3)
PTO Clutch Type ................. One way clutch
Rear PTO Speed, rpm ................. 540
| Transmission |
Transmission Type ................. Gear shift
Gearbox Type ................. 9F/3R
Number of Forward Gears ................. 9
Number of Reverse Gears ................. 3
Clutch Type ................. Dry single plate
Maximum Forward Speed, mph (kph) ................. 11.7 (18.8)
Maximum Reverse Speed, mph (kph) ................. 6.0 (9.6)
| Wheels and Tires |
Wheel Drive System ................. 4WD 4x4
Steering Configuration ................. Front steer
Steering System ................. Power steering
Brake Type ................. Wet disc
Front Tire Size (AG) ................. 6.00x12
Rear Tire Size (AG) ................. 9.50x16
Front Tire Size (Turf) ................. 23x10.50-12
Rear Tire Size (Turf) ................. 280/70R18
Front Tread, in (mm) ................. 31.3-32.1 (795-815)
Rear Tread, in (mm) ................. 29.9-39.5 (760-1005)
| Hydraulic System |
Hydraulic System Type ................. Open center
Hydraulic Pump Type ................. Gear
Hydraulic Pump Flow, gpm (Lpm) ................. 4.5 (16.9)
Steering Pump Flow, gpm (Lpm) ................. 2.6 (9.8)
Three-Point Hitch Category ................. 1
Draft Sensing or Lift Control ................. Select (Q.I.V)
Lift Capacity at lift pin, lbs (kg) ................. 1355 (615)
| Dimensions and Weight |
Wheelbase, in (mm) ................. 61.5 (1565)
Overall Length, in (mm) ................. 94.9 (2410)
Height (ROPS), in (mm) ................. 92.5 (2350)
Overall Width, in (mm) ................. 39 (990)
Ground Clearance, in (mm) ................. 10.4 (265)
Turning Radius, in (mm) ................. 83 (2100)
Operating Weight, lbs (kg) ................. 1725 (785)
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