Kubota B1-15
The Kubota B1-15 is a tractor produced by Kubota. It is equipped with a 52.18 ci 0.9 L engine. The listed engine power is Diesel (listed): 16 hp / 11.9 kW. Transmission: 6 forward and 2 reverse. Operating weight: 1235 to 1257 pounds.
Engine Power
Diesel (listed): 16 hp / 11.9 kW
Fuel & Capacities
4.5 gal
17.0 L
Transmission
6 forward and 2 reverse
Operating Weight
1235 to 1257 pounds
Overview
 | 1985 - 1988
Bulltra SeriesSub-Compact Utility tractor
Bulltra Series
Sub-Compact Utility tractor |
|---|
Production | |
|---|---|
Manufacturer | Kubota |
Sub-Compact Utility tractor | |
Built in Japan | |
Variants | |
|---|---|
B1-15DT | 4WD |
Kubota B1-15 Engine | |
|---|---|
Kubota 0.9L 3-cyl diesel | |
Fuel tank | 4.5 gal
17.0 L |
Engine details ...  | |
Kubota B1-15 Transmission | |
|---|---|
6-speed unsynchronized gear | |
Transmission details ...  |
Kubota B1-15 Power | |
|---|---|
Engine | 16 hp
11.9 kW |
Mechanical | |
|---|---|
Two- or four-wheel drive | |
Manual steering | |
Open operator station. |
Tractor hitch | |
|---|---|
Rear Type | 0 |
Power Take-off (PTO) | |
|---|---|
Rear PTO Type | 540/860/1000 (1.375) |
Dimensions & Tires | |
|---|---|
2WD Wheelbase | 48.8 inches
123 cm |
4WD Wheelbase | 49 inches
124 cm |
Weight | 1235 to 1257 pounds |
Front tire | 4.50-10 |
2WD Rear tire | 8-18 |
Full dimensions and tires ...  | |
Electrical | |
|---|---|
Ground | negative |
Battery volts | 12 |
Engine
Engine Detail — 52.18 ci / 0.9 L Diesel
Manufacturer | Kubota D850 |
Fuel Type | Diesel |
Configuration | 3-cylinder, liquid-cooled |
Displacement | 52.18 ci
0.9 L |
Bore/Stroke | 2.83x2.76 inches
72 x 70 mm |
Power | 16 hp
11.9 kW |
Rated RPM | 2600 |
Starter | electric |
Starter volts | 12 |
Transmission
Transmission — 6 forward and 2 reverse unsynchronized gear
Type | unsynchronized gear |
Gears | 6 forward and 2 reverse |
 | |
Dimensions
Kubota B1-15 Tires | |
|---|---|
2WD Standard tires (ag) | Front: 4.50-10. Rear: 8-18 |
4WD Standard tires (ag) | Front: 5.00-12. Rear: 8-18 |
Dimensions | |
|---|---|
2WD Wheelbase | 48.8 inches
123 cm |
4WD Wheelbase | 49 inches
124 cm |
Length | 86.2 inches
218 cm |
Width | 41.5 inches
105 cm |
2WD Height | 49 inches
124 cm |
4WD Height | 49.2 inches
124 cm |
2WD Weight | 1235 lbs
560 kg |
4WD Weight | 1257 lbs
570 kg |
2WD Front tread | 28 inches
71 cm |
4WD Front tread | 30.3 inches
76 cm |
Rear tread | 31.9/35.4 inches
81/89 cm |
Photos
Kubota B1-15 tractor photo
Recommended Implements & Sizing Guide
Engineering recommendations for Kubota B1-15 based on its 16 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. |
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 B1-15.
Estimated Continuous Field Runtime: 5.4 hrs
Approximately 5.4 hours of continuous field operation at ~75% rated power on a full tank (4.5 gal / 17 L).
Estimated 75% Load Fuel Burn~0.8 gal/hr (3.1 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 B1-15 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Kubota B1-15.
Converted Equivalents:
Horsepower (HP)16 hp
Kilowatts (kW)11.9 kW
Metric Horsepower (PS / CV)16.2 PS
Direct Competitor Comparison
Compare Kubota B1-15 against same-era industry alternatives in the same horsepower class.
Current Model
Kubota
Kubota B1-15
Engine Power:Diesel (listed): 16 hp / 11.9 kW
★ Baseline Reference
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