The Kubota B5100 is a 2WD (B5100E) or 4WD (B5100DT) sub-compact utility tractor manufactured by the Kubota in Japan from 1978 to 1984. The Kubota B5100 is equipped with a 0.5 L two-cylinder diesel engine and gear shift transmission with dry single plate type clutch (6 forward and 2 reverse gears).
The Kubota B5100 utility tractor used the Z500-A1 engine. It is a 0.5 L, 508 cm2, (31.0 cu·in) two-cylinder natural aspirated diesel engine with 68.0 mm (2.68 in) of the cylinder bore and 70.0 mm (2.76 in) of the piston stroke. This engine produced 12 PS (8.8 kW; 11.8 HP) at 3,000 rpm of maximum output power.
The Kubota B5100 is equipped with ball screw type steering, internal-expanding type brakes (right and left independent with interlock device), open operator station with two-post ROPS (Rollover protection structure) and 8.0 liters (2.1 US gal.; 1.8 Imp. gal) fuel tank.
Kubota B5100 Specifications
| General Specifications | |
| Model | Kubota B5100 |
| Length | 1,820 mm (71.7 in) |
| Width | 9,20 mm (36.2 in) |
| Height | 1,120 mm (44.1 in) |
| Wheel base | 1,180 mm (46.5 in) |
| Weight |
B5100E (2WD): 365 kg (805 lbs) B5100DT (4WD): 405 kg (893 lbs) |
| Fuel tank capacity | 8.0 liters (2.1 US gal.; 1.8 Imp. gal) |
| Battery | 12V 35Ah |
| Cabin type | Open operator station with two-post ROPS |
| Engine | |
| Engine model | Z500-A1 |
| Engine type | Four-stroke, liquid-cooled, inline |
| Cylinders | 2 |
| Fuel type | Diesel |
| Displacement | 0.5 L, 508 cm2, (31.0 cu·in) |
| Bore and stroke | 68.0 mm X 70.0 mm (2.68 in X 2.76 in) |
| Horsepower | 12 PS (8.8 kW; 11.8 HP) at 3,000 rpm |
| Starter | Electric |
| Oil capacity: | 2.3 L (2.43 US. qt, 2.02 Imp. qt.) |
| Coolant capacity: | 3.0 L (3.17 US. qt, 2.64 Imp. qt.) |
| Transmission and chassis | |
| Chassis |
B5100E: 4×2 2WD B5100DT: 4×4 MFWD 4WD |
| Steering type | Ball screw type |
| Brakes | Internal-expanding type, right and left independent with interlock device |
| Transmission model | – |
| Transmission type | Gear shift with dry single plate type clutch |
| Gears | 6 forward and 2 reverse |
| Speed | Forward: 12.8 kmh (8.0 mph) Reverse: 6.4 (4.0 mph) |
| Transmission oil capacity | 8.5 L (8.98 US. qt, 7.48 Imp. qt.) |
| Tires | |
| Front tires |
B5100E: Ag: 4.00-9 Lawn/turf: 18×8.50-8 B5100DT: Ag: 4.50-10 Lawn/turf: 18×6.50-8 |
| Rear tires | Ag: 7.00-16 Lawn/turf: 27×8.50-15 |
| Three-Point Hitch | |
| Caterogy | I |
| Control type | – |
| Lift capacity | 140 kg (310 lbs) |
| PTO (Power take-off shaft) | |
| Front PTO type | – |
| Front PTO spped | 3,000 rpm |
| Rear PTO type | Transmission |
| Rear PTO spped | 540/1,000 rpm |