Kubota B5100
The Kubota B5100 is a tractor produced by Kubota. It is equipped with a 31 ci 0.5 L engine. The rated power output is 12 hp 8.9 kW. Transmission: 6 forward and 2 reverse. Operating weight: 805 to 893 pounds.
Engine Power
12 hp
8.9 kW
Fuel & Capacities
2.1 gal
7.9 L
Transmission
6 forward and 2 reverse
Operating Weight
805 to 893 pounds
Kubota B5100 Serial Number & Year Decoder
Find the exact manufacture year of your tractor by checking your chassis serial number below.
Where to Find the Serial NumberThe serial number plate is commonly located on the front frame, tractor transmission housing (right side), or instrument panel badge.
Overview
![]() | 1978 - 1984
Sub-Compact Utility tractor |
|---|---|
1978 - 1984 | |
Sub-Compact Utility tractor | |
Production | |
|---|---|
Manufacturer | Kubota |
Sub-Compact Utility tractor | |
Built in Japan | |
Variants | |
|---|---|
B5100DT | 4WD |
B5100E | 2WD |
Kubota B5100 Engine | |
|---|---|
Kubota 0.5L 2-cyl diesel | |
Fuel tank | 2.1 gal
7.9 L |
Engine details ... | |
Kubota B5100 Transmission | |
|---|---|
6-speed unsynchronized gear | |
Transmission details ... |
Kubota B5100 Power | |
|---|---|
Engine | 12 hp
8.9 kW |
PTO (claimed) | 10 hp
7.5 kW |
Mechanical | |
|---|---|
Two- or four-wheel drive | |
Differential lock | mechanical rear |
Manual steering | |
Mechanical wet disc brakes | |
Open operator station. Two-post fixed ROPS available. | |
Hydraulics | |
|---|---|
Type | open center |
Pump flow | 3.17 gpm
12.0 lpm |
Tractor hitch | |
|---|---|
Rear Type | I |
Rear lift | 300 lbs
136 kg |
Power Take-off (PTO) | |
|---|---|
Rear PTO | transmission |
Rear PTO Type | 540/1000 |
Front PTO Type | 3000 |
Dimensions & Tires | |
|---|---|
Wheelbase | 46.5 inches
118 cm |
Weight | 805 to 893 pounds |
Front tire | 4.00-9 |
Rear tire | 7.00-16 |
Full dimensions and tires ... | |
Electrical | |
|---|---|
Ground | negative |
Battery volts | 12 |
Battery AH | 35 |
References | |
|---|---|
![]() | |
Diesel B B5100/B6100/B7100 published in 1982, by Kubota | |
Tractors and Excavators published in 1981, by Kubota | |
Tractors and Excavators published in 1982, by Kubota |
Engine
Engine Detail — 31 ci / 0.5 L Diesel
Manufacturer | Kubota Z500-1A |
Fuel Type | Diesel |
Configuration | 2-cylinder, liquid-cooled |
Displacement | 31 ci
0.5 L |
Bore/Stroke | 2.625x2.75 inches
67 x 70 mm |
Power | 12 hp
8.9 kW |
Pre-heating | glow plugs |
Rated RPM | 3000 |
Starter volts | 12 |
Starter power | 1.1 hp
0.8 kW |
Coolant capacity | 3.2 qts
3.0 L |
Oil capacity | 2.4 qts
2.3 L |
Oil change | 75 h |
Transmission
Transmission — 6 forward and 2 reverse unsynchronized gear
Type | unsynchronized gear |
Gears | 6 forward and 2 reverse |
Clutch | dry disc |
Oil capacity | 9.0 qts
8.5 L |
Three gears, plus reverse, in two ranges. | |
![]() | |
Dimensions
Kubota B5100 Tires | |
|---|---|
Ag front | 4.00-9 (2WD) |
4.50-10 (4WD) | |
Ag rear | 7.00-16 |
Lawn/turf front | 18x6.50-8 |
Lawn/turf rear | 27x8.50-15 |
Dimensions | |
|---|---|
Wheelbase | 46.5 inches
118 cm |
Length | 71.6 inches
181 cm |
Width | 36.25 inches
92 cm |
Height (steering wheel) | 44.1 inches
112 cm |
2WD Weight | 805 lbs
365 kg |
4WD Weight | 893 lbs
405 kg |
4WD Clearance (front axle) | 8.625 inches
21 cm |
2WD Clearance (rear axle) | 10.25 inches
26 cm |
2WD Front tread | 26 inches
66 cm |
4WD Front tread | 26.4 inches
67 cm |
Rear tread | 25/29 inches
63/73 cm |
Photos
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