Kubota B7100 Specs
| Production | |
| Manufacturer | Kubota |
| Compact Utility tractor | |
| Built in Japan | |
| The Kubota B7100 was not available in the late 1980s, after that only the hydrostatic was available. Early model B7100 serial numbers began with “B7001”, which is the Asian-market model designation. | |
| B7100 Serial Numbers | |
| Location: | Clutch housing, left side |
| 1976 | 10001 |
| 1977 | 13931 |
| 1978 | 36646 |
| 1979 | 54221 |
| 1980 | 64448 |
| 1981 | 70678 |
| 1982 | 74217 |
| 1983 | 76009 |
| 1984 | 77309 |
| 1985 | 78435 |
| Engine Detail | |
| Kubota D750-A | |
| diesel | |
| 3-cylinder | |
| liquid-cooled | |
| Displacement | 46.5 ci 0.8 L |
| Bore/Stroke | 2.68×2.76 inches 68 x 70 mm |
| Power (gross) | 16 hp 11.9 kW |
| Air cleaner | dry |
| Pre-heating | glow plugs |
| Rated RPM | 2800 |
| Firing order | 1-2-3 |
| Starter volts | 12 |
| Starter power | 1.1 hp 0.8 kW |
| Coolant capacity | 4.9 qts 4.6 L |
| Kubota B7100 Power | |
| Engine (gross) | 16 hp 11.9 kW |
| PTO (claimed) | 13 hp 9.7 kW |
| Plows | 1 * |
| Mechanical | |
| Two- or four-wheel drive | |
| Differential lock | mechanical rear |
| Manual steering | |
| Mechanical wet disc brakes | |
| Open operator station. Two-post fixed ROPS available. | |
| Capacity | |
| Fuel | 3.4 gal 12.9 L |
| Hydraulic system | 3.6 gal 13.6 L |
| Tractor hitch | |
| Rear Type | I |
| Rear lift | 400 lbs 181 kg |
| Electrical | |
| Ground | negative |
| Battery volts | 12 |
| Battery AH | 45 |
| Power Take-off (PTO) | |
| Rear PTO | transmission |
| Rear PTO Type | 540 (1.375) |
| Engine RPM | 514@2800 |
| 876@2800 | |
| 1498@2800 | |
| Front PTO Type | 2800 |
| Transmission | |
| Type | unsynchronized gear |
| Gears | 6 forward and 2 reverse |
| Clutch | dry plate |
| Oil capacity | 12.2 qts 11.5 L |
| Transmission shifted using two levers. Left-hand lever selects three forward gears or reverse, right-hand lever selects high or low range. | |
| Hydraulics | |
| Type | open center |
| Capacity | 3.6 gal 13.6 L |
| Pump flow | 3 gpm 11.4 lpm |
| Kubota B7100 Tires | |
| 4WD Standard tires (ag) | Front: 6-12. Rear: 8.3-16 |
| Lawn/turf front | 20.5×8.00-10 |
| Lawn/turf rear | 29×12.00-15 |
| Dimensions | |
| Wheelbase | 49.5 inches 125 cm |
| Length | 78.75 inches 200 cm |
| Width | 40 inches 101 cm |
| Height (steering wheel) | 45.5 inches 115 cm |
| Weight | 1080 lbs 489 kg |
| Ground clearance | 11.375 inches (transmission case) 28 cm |
| Clearance (front axle) | 9.5 inches 24 cm |
| Front tread | 32.5 inches 82 cm |
| Rear tread | 26/28/30 inches 66/71/76 cm |
Kubota B7100 Attachments
| Attachment overview | |
| Snowblower | |
| Kubota B219 loader | |
| Kubota B1630 loader | |
| Backhoe |
| Kubota B670 Backhoe | |
| Backhoe type | Kubota B670 Backhoe |
| Weight | 750 lbs 340 kg |
| Transport height | 61 inches 154 cm |
| Bucket width | 9 inches 22 cm |
| 13 inches 33 cm | |
| 16 inches 40 cm | |
| 2-Foot flat digging depth | 73 inches 185 cm |
| Reach from pivot | 100 inches 254 cm |
| Loading height | 60 inches 152 cm |
| Bucket Rotation | 180° |
| Swing Arc | 180° |
| Bucket force | 2400 lbs 1088 kg |
Kubota B7100 Problems
The Kubota B7100 is a popular compact utility tractor known for its durability, but like many older models, it comes with a few common issues. Based on user experiences, here are some of the problems often encountered with the B7100:
Common Problems:
- Oil in the Coolant: A frequent issue reported by owners is oil mixing with the coolant, which could signal a blown head gasket or other serious engine problems. This can result in a slick, black substance in the coolant and may be accompanied by smoke coming from the valve cover vent.
- Starting Troubles: Many users have found the B7100 difficult to start, often due to problems with the glow plugs. Even when new, this model has been noted for starting more slowly compared to others.
- Overheating: Some owners report that the tractor tends to overheat, especially after moderate use. The thermostat housing can get extremely hot, potentially indicating a failing cooling system or low coolant levels.
- Hydraulic and Gearbox Issues: Problems with the hydraulic system and gearbox are not uncommon. Owners have mentioned issues with the hydraulic lift malfunctioning and strange noises coming from the gearbox, often requiring costly repairs.
- General Maintenance: Like most older tractors, regular maintenance is key to keeping the B7100 running smoothly. Replacing worn radiator hoses, fuel lines, and filters is recommended, along with inspecting freeze plugs and hydraulic lines for wear.
- Worn Bearings and Axles: Some users have reported rear axle bearing wear, which can cause noticeable shifting when the tractor begins to move. This wear should be addressed to ensure safe operation.
Despite these issues, many owners still find the Kubota B7100 to be a reliable and durable machine with the right care and maintenance.
Kubota B7100 Reviews
The Kubota B7100 is a compact tractor that has earned a strong reputation for reliability and versatility. Here’s an overview of user feedback and insights from various sources:
Performance and Usability
- User Satisfaction: Owners consistently praise the B7100 for its performance in tasks like mowing, tilling, and snow removal. Many users note that despite its smaller size, it can often replace larger tractors. One user even mentioned that it performs on par with more powerful models, despite being lighter.
- Hydrostatic Transmission: The hydrostatic transmission (HST) is highly appreciated, especially by users who prefer the ease of automatic shifting over manual gear shifting. This feature allows for smoother operation across different terrains, making it a versatile choice for both residential and agricultural tasks.
Maintenance and Repairs
- Maintenance Costs: Maintenance for the B7100 is generally considered affordable. A full service, including new filters and fluids, typically costs around $260, which is seen as reasonable when compared to other brands, like John Deere.
- Common Issues: While the B7100 is known for its durability, some common issues include oil leaks around the seals and difficulty starting in cold weather due to glow plug problems. Fortunately, regular maintenance can help prevent or mitigate most of these issues.
Specifications and Features
- Power and Size: The B7100 is powered by a 16 HP engine, which may feel limiting for heavier tasks like front-end loader work. However, it’s generally sufficient for light to medium-duty tasks, making it an excellent choice for small farms or properties.
- Attachments and Implements: The tractor is compatible with various attachments, including mid-mount mowers and rear implements. Some users have considered adding a front-end loader, which is possible but may require an additional investment.
Overall Value
- Affordability: The Kubota B7100 is often viewed as a cost-effective option for those seeking a reliable compact tractor. Used models typically range in price from $2,500 to $4,000, depending on condition and attachments.
- Longevity: With proper care, many users report that the B7100 can last for many years, making it a solid investment for those in need of a dependable machine for a variety of agricultural or landscaping tasks.
Conclusion
Overall, the Kubota B7100 is highly regarded for its reliability, ease of maintenance, and versatility, making it an excellent choice for homeowners and small-scale farmers looking for a durable and cost-effective tractor.