The Comprehensive Guide to Kubota Models: Highlighting the Models to Avoid and Why

In the diverse farming machinery realm, Kubota is known for manufacturing reliable and efficient tractors. Known for their long-lasting engines, Kubota models are designed to serve thousands of operating hours without significant wear and tear. However, like other machinery, specific models have raised concerns due to recurring issues, often leading to unexpected repair costs and lost productivity.

This comprehensive guide aims to provide insights into such Kubota models, helping potential owners make informed decisions. Each section will focus on a specific Kubota model, discussing common problems associated with it and offering practical advice.

#6 to Avoid. Kubota BX2380

Overview of the Model

01 Kubota Models To Avoid Kubota BX2380The Kubota BX2380 is a popular compact tractor model from Kubota designed for various small-scale farming tasks. This versatile machine boasts a 4-wheel drive and a robust 3-cylinder diesel engine with a power output of 23 HP, ideal for tasks that require considerable power.

Specifications Kubota BX2380
Drive 4-Wheel Drive
Engine 3-Cylinder Diesel
Power Output 23 HP
Problems Associated with BX2380

Despite its appealing features, the Kubota BX2380 has had its share of issues. These include:

  1. Fire Hazard: The most significant concern with the BX2380 models manufactured between 2014 and 2018 is the fire hazard due to faulty coolant reservoir tank brackets. It resulted in a recall in 2018.
  2. Overheating: Some owners have reported instances of the BX2380 overheating, mainly due to clogged radiators or malfunctioning thermostats.
  3. Starting issues: There have been complaints about the BX2380 having hard starts, especially in cold weather. It is very likely due to issues with the fuel delivery system.
  4. PTO and loader complications: Power Take Off (PTO) and loader complications have also been noted, impacting the tractor’s overall performance.
Problems Common Causes
Fire Hazard Faulty Coolant Reservoir Tank Brackets
Overheating Clogged Radiators or Malfunctioning Thermostats
Starting Issues Problems with Fuel Delivery System
PTO and Loader Complications Unknown
Tips for BX2380 Owners

If you’re an owner of a BX2380, here are some maintenance tips and potential solutions to help mitigate these issues:

  1. For the fire hazard: If your model was part of the recall, ensure it has been serviced per the manufacturer’s guidelines. Regularly check the coolant reservoir tank bracket for any signs of damage.
  2. For overheating: Regular cleaning of the radiator and routine check-ups of the thermostat can help prevent overheating.
  3. For starting issues: Regular servicing of the fuel delivery system, especially before the onset of cold weather, can help mitigate hard starts.
  4. For PTO and loader complications: Regular servicing and appropriate use of the PTO and loader can help minimize these issues. Consult a certified Kubota mechanic for precise guidance.
Problems Preventive Measures
Fire Hazard Ensure Servicing as per Manufacturer’s Guidelines and Regularly Check the Coolant Reservoir Tank Bracket
Overheating Regular Cleaning of Radiator and Routine Check-up of Thermostat
Starting Issues Regular Servicing of Fuel Delivery System
PTO and Loader Complications Regular Servicing and Appropriate Use of PTO and Loader

#5 to Avoid: Kubota B3350

02 Kubota Models To Avoid Kubota B3350

Overview of the Model

The Kubota B3350 is a compact tractor that takes utility to the next level. It is a powerful tool for small to medium-sized farms with its formidable 4-cylinder E-TVCS engine that churns out 33 HP. Its hydrostatic transmission provides an ease of operation that many users find invaluable. Moreover, it boasts a factory-installed cab for added comfort during procedures.

Specifications Kubota B3350
Engine 4-Cylinder E-TVCS
Power Output 33 HP
Transmission Hydrostatic
Problems Associated with B3350

Despite its enticing specifications, the Kubota B3350 has been subject to certain complications. They include:

  1. DPF Regeneration System Complaints: The most frequent problem with the B3350 revolves around the Diesel Particulate Filter (DPF) regeneration system. While environmentally friendly, this system can lead to the tractor’s frequent downtime due to the necessary cleaning cycles.
  2. Stalling: Instances of the tractor stalling, often due to fuel system or injector problems, have been reported.
  3. Hard Starts: Similar to the BX2380, the B3350 can have starting difficulties, especially in colder climates.
  4. Electrical Problems: Some users have mentioned issues with the electrical systems, causing inconsistent performance of the tractor.
Problems Common Causes
DPF Regeneration System Complaints Necessary Cleaning Cycles
Stalling Fuel System or Injector Problems
Hard Starts Cold Climate or Fuel Delivery Issues
Electrical Problems Unknown
Tips for B3350 Owners

To get the most out of your B3350 and alleviate these problems, consider the following suggestions:

  1. For DPF Regeneration System Complaints: Regular servicing and cleaning of the DPF system can help reduce the downtime associated with its regeneration cycles.
  2. For Stalling: Regular fuel system check-ups and prompt injector servicing can help prevent the tractor from stalling.
  3. For Hard Starts: As with the BX2380, regular maintenance of the fuel delivery system, especially before the winter season, can help to avoid challenging start issues.
  4. For Electrical Problems: Regular check-ups of the electrical system by a certified Kubota service technician can ensure the consistent performance of your tractor.
Problems Preventive Measures
DPF Regeneration System Complaints Regular Servicing and Cleaning of DPF System
Stalling Regular Fuel System Check-ups and Prompt Servicing of Injectors
Hard Starts Regular Maintenance of Fuel Delivery System
Electrical Problems Regular Check-ups of the Electrical System by Certified Kubota Service Technician

#4 to Avoid: Kubota L3000DT

03 Kubota Models To Avoid Kubota L3000DT

Overview of the Model

The Kubota L3000DT tractor is well-suited for extensive gardens, estates, or small farm tasks. Its capabilities are enhanced by a sturdy 32 HP 3-cylinder Kubota engine that promises high performance. Equipped with eight forward and two reverse speeds, this tractor provides a good range of speed for various tasks. A key feature is the four-wheel-drive system, providing enhanced traction for challenging conditions.

Specifications Kubota L3000DT
Engine 3-Cylinder Kubota
Power Output 32 HP
Transmission 8 Forward, 2 Reverse Speeds
Drive System Four-Wheel-Drive
Problems Associated with L3000DT

However, there have been a few common problems associated with the Kubota L3000DT, which include:

  1. Failing Clutch: The clutch of the L3000DT has been reported to fail over time, which can be a costly issue to fix.
  2. Transmission Unit Problems: Some users have reported difficulties with the transmission unit, which can affect the operational efficiency of the tractor.
Problems Common Causes
Failing Clutch Wear and Tear over time
Transmission Unit Problems Unknown
Tips for L3000DT Owners

It’s essential to adhere to the following advice:

  1. For Failing Clutch: Regular clutch inspection and maintenance is essential. If you notice any signs of slippage or difficulty in shifting, it’s time to have the clutch inspected by a Kubota service professional.
  2. For Transmission Unit Problems: Regular inspection of the transmission fluid and general maintenance of the transmission unit can help detect issues early. If you notice any trouble with gear shifting, seek immediate professional help.
Problems Preventive Measures
Failing Clutch Regular Clutch Inspection and Maintenance
Transmission Unit Problems Regular Inspection of Transmission Fluid and Maintenance of the Transmission Unit

#3 to Avoid: Kubota M9540

03 Kubota Models To Avoid Kubota M9540

Overview of the Model

The Kubota M9540 represents a step up in size and power within Kubota’s tractor range. With a muscular 95 HP 4-cylinder turbocharged engine and a sophisticated hydraulic shuttle transmission system, this tractor is well-suited to various heavy-duty tasks. It also features a well-designed, comfortable operator area, making managing long work hours easier.

Specifications Kubota M9540
Engine 4-Cylinder Turbocharged Kubota
Power Output 95 HP
Transmission Hydraulic Shuttle Transmission
Problems Associated with M9540

Despite its capabilities, the M9540 has been known to present some issues, such as:

  1. Hydraulic Troubles: Some owners have reported recurring issues with the hydraulic system, despite repair attempts. It could limit the tractor’s effectiveness and operation.
Problems Common Causes
Hydraulic Troubles Potential System Defects or Wear and Tear
Tips for M9540 Owners

In response to these issues, it’s essential to follow some guidelines to ensure the longevity of the tractor:

  1. Hydraulic Troubles: Regularly inspect hydraulic hoses for any signs of wear and tear or leakage. Also, ensure that hydraulic fluid levels are correct and the quality is up to standard. Consider a comprehensive hydraulic system overhaul or contacting a Kubota specialist if hydraulic issues persist.
Problems Preventive Measures
Hydraulic Troubles Regular Inspection and Maintenance of Hydraulic System

#2 to Avoid: Pre-2019 Kubota GR2120

03 Kubota Models To Avoid Kubota GR2120

Overview of the Model

The pre-2019 Kubota GR2120 is a compact garden tractor that offers a versatile range of capabilities. Equipped with a 21 HP Kubota Diesel engine, this model ensures efficiency and durability. It is also known for its Glide Steer technology, which allows for sharper turns without damaging the grass.

Specifications Pre-2019 Kubota GR2120
Engine 21 HP Kubota Diesel
Key Feature Glide Steer Technology
Problems Associated with Pre-2019 GR2120

Like any mechanical device, the GR2120 is not without its problems, such as:

  1. Faulty Coolant Reservoir Tank: Owners have reported that the coolant reservoir tank may crack, causing the coolant to leak and possibly resulting in overheating issues.
  2. Engine Failures and Starting Issues: There have been reports of occasional engine failures and starting issues that could be attributed to various factors.
Problems Common Causes
Faulty Coolant Reservoir Tank Material Defect or Wear and Tear
Engine Failures and Starting Issues Various Engine-related Factors
Tips for GR2120 Owners

Here are some preventive measures and suggestions to handle these problems:

  1. Faulty Coolant Reservoir Tank: Regularly inspect the coolant reservoir tank for any signs of wear and tear. If you notice any cracks or coolant leakage, replace the tank immediately.
  2. Engine Failures and Starting Issues: Regular engine maintenance, including checking oil levels and keeping the battery fully charged, can help mitigate these issues. It’s also advisable to consider upgrading to a post-2019 model, as the manufacturer has reportedly addressed these issues in later models.
Problems Preventive Measures
Faulty Coolant Reservoir Tank Regular Inspection and Replacement of Tank
Engine Failures and Starting Issues Regular Engine Maintenance and Consideration of Upgrading to Post-2019 Model

#1 to Avoid: Kubota B2650

03 Kubota Models To Avoid Kubota B2650

Overview of the Model:

With its introduction to the market, the Kubota B2650, part of Kubota’s renowned B series, promised an efficient, reliable, and versatile tractor option. Yet, the model came with its fair share of complications. The B2650 features a 26HP diesel engine and a high ground clearance, initially making it attractive for farming and construction applications.

Problems Associated with B2650:

With time, owners of the B2650 began to report recurring issues that became synonymous with this model.

A particularly pressing problem is the fuel system’s tendency to clog, often leading to unanticipated downtimes and costly repairs. It is frequently due to a substandard fuel filter, which fails to effectively filter out particulate matter, causing a clog in the fuel injection system.

Next, there is a reported issue with the HST (Hydrostatic Transmission), wherein users have reported a gradual decrease in efficiency and power delivery over time. It, along with the frequent need for clutch adjustments, has significantly impacted the overall satisfaction of B2650 owners.

Finally, several users have reported oil leakage directly due to inadequate seals and gaskets in the engine components.

Problem Description
Fuel System Clogging Due to substandard fuel filter causing clogs in the fuel injection system.
HST Issues Decrease in efficiency and power delivery over time. Frequent need for clutch adjustments.
Oil Leakage Inadequate seals and gaskets in the engine components.
Tips for B2650 Owners:

If you already own a B2650, regular maintenance, and inspections can help manage these issues to some extent. We suggest cleaning or replacing the fuel filter periodically to avoid clogging and engine damage. Moreover, addressing the need for clutch adjustments at the earliest can ensure better longevity of the HST.

Addressing oil leakage requires careful inspection of the seals and gaskets. If oil leakage is observed, it is best to consult with an excellent professional to have the faulty parts replaced.

Despite these steps, we advise potential buyers to be aware of these recurring problems when considering the B2650 model. Selecting a newer model or a different series might be a more dependable option.


In this discussion, we highlighted a select group of Kubota models that, despite their many features, have proven to present more frequent problems for owners.

  • The Kubota B7100 with its reported hydraulic and PTO issues.
  • The Kubota M125X with its known clutch problems and recurring engine faults.
  • The pre-2019 Kubota GR2120 struggles with a faulty coolant reservoir tank, overheating, and engine failures.
  • The Kubota L3300F model with its common problems of frequent engine failures and weak electrical units.
  • Finally, the Kubota L3000DT has issues with its clutch and transmission system.

A tractor is a significant investment, and the selection should be carefully considered. We have emphasized the importance of regular maintenance and the benefits of choosing more recent models to ensure your tractor performs optimally. The longevity of your tractor ultimately rests in the hands of diligent care and proper usage.


For further understanding and knowledge on the matter, we recommend the following books available on Amazon:

  1. The Tractor Factor: A Century of Power by Robert N. Pripps
  2. The Big Book of Farm Tractors by Robert N. Pripps
  3. How to Restore Classic Farm Tractors by Tharran E Gaines