Kubota B1241
The Kubota B1241 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): 21.5 hp / 16.0 kW. Transmission: 9 forward and 3 reverse. Operating weight: 1631 lbs 739 kg.
Engine Power
Diesel (net): 21.5 hp / 16.0 kW
Fuel & Capacities
6.9 gal
26.1 L
Transmission
9 forward and 3 reverse
Operating Weight
1631 lbs
739 kg
Overview
 | 2018 -
B1 SeriesSub-Compact Utility tractor |
|---|---|
2018 - | |
B1 Series | |
Sub-Compact Utility tractor | |
Production | |
|---|---|
Manufacturer | Kubota |
Sub-Compact Utility tractor | |
Kubota B1241 Engine | |
|---|---|
Kubota 1.1L 3-cyl diesel | |
Fuel tank | 6.9 gal
26.1 L |
Engine details ...  | |
Kubota B1241 Transmission | |
|---|---|
9-speed gear | |
Transmission details ...  |
Kubota B1241 Power | |
|---|---|
Engine (net) | 21.5 hp
16.0 kW |
Mechanical | |
|---|---|
Four-wheel drive | |
Differential lock | mechanical rear |
Power steering | |
Wet disc brakes | |
Two-post folding ROPS. | |
Hydraulics | |
|---|---|
Pump flow | 4.5 gpm
17.0 lpm |
Tractor hitch | |
|---|---|
Rear Type | I |
Rear lift (at ends) | 1356 lbs
615 kg |
Power Take-off (PTO) | |
|---|---|
Rear PTO Type | 540 (1.375) |
Dimensions & Tires | |
|---|---|
Wheelbase | 50 inches
127 cm |
Weight | 1631 lbs
739 kg |
Front tire | 23x10.50-12 |
Rear tire | 280/70R18 |
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 D1105 |
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) | 21.5 hp
16.0 kW |
Air cleaner | dry element |
Rated RPM | 2600 |
Starter | electric |
Starter volts | 12 |
Transmission
Transmission — 9 forward and 3 reverse gear
Type | gear |
Gears | 9 forward and 3 reverse |
Dimensions
Kubota B1241 Tires | |
|---|---|
Standard tires (ag) | Front: 23x10.50-12. Rear: 280/70R18 |
Dimensions | |
|---|---|
Wheelbase | 50 inches
127 cm |
Length | 94.9 inches
241 cm |
Width | 39 inches
99 cm |
Height (ROPS) | 87.3 inches
221 cm |
Weight | 1631 lbs
739 kg |
Ground clearance | 10.5 inches
26 cm |
Front tread | 31.4 to 32.1 inches
79 to 81 cm |
Rear tread | 29.9 to 39.6 inches
75 to 100 cm |
Photos
Kubota B1241 tractor photo
Recommended Implements & Sizing Guide
Engineering recommendations for Kubota B1241 based on its 21.5 HP power envelope and ASAE agricultural standards.
| Implement & Operation | Recommended Size | Workload Rating | Engineering Notes |
|---|---|---|---|
Moldboard PlowPrimary Tillage | 1 to 2 Bottom (12")1 - 2 铧 (30 cm) | Light Duty | Ideal for garden plots and light sandy soil. |
Rotary Cutter / MowerMowing & Clearing | 4 ft (48 in)1.2 m | Light Duty | Pasture clipping and light brush under 1" diameter. |
Rotary TillerSeedbed Prep | 42 to 48 in105 - 120 cm | Light Duty | Covers compact tractor tire width. |
Disc HarrowSecondary Tillage | 5 to 6 ft (16-18" discs)1.5 - 1.8 m (40-45 cm 耙片) | Light Duty | Small acreage soil break-up and secondary aeration. |
Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.
Fluids, Capacities & Working Autonomy
Standard fluid requirements, service intervals, and continuous runtime estimates for Kubota B1241.
Estimated Continuous Field Runtime: 6.2 hrs
Approximately 6.2 hours of continuous field operation at ~75% rated power on a full tank (6.9 gal / 26.1 L).
Estimated 75% Load Fuel Burn~1.1 gal/hr (4.2 L/hr)
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 B1241 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Kubota B1241.
Converted Equivalents:
Horsepower (HP)21.5 hp
Kilowatts (kW)16 kW
Metric Horsepower (PS / CV)21.8 PS
Direct Competitor Comparison
Compare Kubota B1241 against same-era industry alternatives in the same horsepower class.
Current Model
Kubota
Kubota B1241
Engine Power:Diesel (net): 21.5 hp / 16.0 kW
★ Baseline Reference
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