Kubota BX2370 Parts and Parts Manual PDF

Kubota BX2370 Parts

The Kubota BX2370 has a 23 HP diesel engine delivers 17.7 PTO horsepower, making it capable of handling various tasks around your property. Choose between a 54″ or 60″ mower deck for efficient grass cutting.

The LA243A loader boasts a 745-lb lift capacity, while the PTO handles up to 680 lbs, making it versatile for lifting and hauling. Operate smoothly with the hydrostatic transmission and high-low gear shift.

This feature-packed tractor offers comfort with an adjustable operator’s seat and ergonomic controls.

Key Specs:

  • Engine: 23 HP diesel
  • PTO Power: 17.7 HP
  • Mower Deck Options: 54″ or 60″
  • Loader Lift Capacity: 745 lbs
  • PTO Lift Capacity: 680 lbs
  • Transmission: Hydrostatic with high-low gear shift

Kubota BX2370 Parts Diagram

You can find the parts diagram for the Kubota BX2370 on several websites. The parts diagram is a visual representation of all the parts and components of the tractor, which can be helpful for maintenance and repairs. Here are some sources where you can find the parts diagram:

  1. Messicks: Messicks provides a parts diagram for the Kubota BX2370, including various components such as attachments, engine oil filter, transmission oil filter, and other parts.
  2. Jack’s Small Engines: Jack’s Small Engines offers an exploded view parts lookup for the Kubota BX2370, allowing you to see all the parts in detail.
  3. Coleman Equipment: Coleman Equipment also provides a parts diagram for the Kubota BX2370, offering genuine OEM parts online or in-store.

Kubota BX2370 Mower Deck Parts

  1. Blades: These are the cutting components of the mower deck. Depending on the model, there could be one or more blades attached to the spindle assemblies.
  2. Spindle Assemblies: Spindle assemblies hold the blades in place and allow them to rotate freely. They are mounted to the mower deck and connect to the drive system.
  3. Belt(s): The mower deck is typically powered by one or more belts connected to the tractor’s power take-off (PTO) system. These belts transfer power from the tractor to the spindle assemblies, causing the blades to rotate.
  4. Deck Shell: The deck shell is the main housing of the mower deck. It provides structural support and houses the blades, spindles, and other components.
  5. Pulley System: Pulleys are used to route the belts around the mower deck, transferring power from the tractor to the blades. There are often multiple pulleys of different sizes to create the necessary belt tension and drive ratios.
  6. Deck Wheels/Rollers: These wheels or rollers are mounted on the mower deck to provide support and stability, especially when mowing uneven terrain. They help prevent scalping and ensure an even cut.
  7. Adjustment Mechanisms: Mower decks often have mechanisms for adjusting the cutting height. These can include levers, pins, or other systems that allow you to raise or lower the deck to achieve the desired grass height.
  8. Mounting Hardware: Bolts, nuts, washers, and other hardware are used to assemble and secure the various components of the mower deck to the tractor.

Kubota BX2370 Attachments

Here are some common attachments compatible with the Kubota BX2370:

  1. Front Loader: A front loader attachment allows you to lift, move, and transport materials such as soil, gravel, mulch, and more. It’s useful for landscaping, construction, and general material handling tasks.
  2. Backhoe: Adding a backhoe attachment enhances the BX2370’s capabilities for digging trenches, holes, and foundations. It’s ideal for excavation and utility work.
  3. Mower Deck: Kubota offers mower deck attachments specifically designed for the BX series tractors, including the BX2370. Mower decks come in various sizes to suit different cutting widths and are perfect for maintaining lawns, fields, and pastures.
  4. Box Blade: A box blade attachment is useful for leveling, grading, and backfilling soil. It’s commonly used for landscaping, driveway maintenance, and other earthmoving projects.
  5. Rotary Tiller: A rotary tiller attachment is ideal for preparing seedbeds, cultivating soil, and incorporating amendments. It’s useful for gardening, landscaping, and small-scale farming.
  6. Snowblower: In regions with snowy winters, a snowblower attachment can be invaluable for clearing driveways, sidewalks, and paths. It’s a must-have for snow removal tasks.
  7. Grapple: A grapple attachment allows you to handle bulky and irregularly shaped materials with ease. It’s commonly used for brush removal, debris cleanup, and handling logs and branches.
  8. Forks: Fork attachments transform your tractor into a forklift, enabling you to lift and move pallets, bales, and other heavy objects. They’re useful for agricultural, industrial, and logistical applications.
  9. Sprayer: A sprayer attachment is ideal for applying pesticides, herbicides, fertilizers, and other chemicals to crops, lawns, and gardens. It’s essential for agricultural and landscaping operations.
  10. Post Hole Digger: A post hole digger attachment is perfect for digging holes for fence posts, signposts, and other installations. It’s a time-saving tool for fencing, landscaping, and construction projects.

Kubota BX2370 Problems

Here are some common problems that owners have reported with the Kubota BX2370:

  1. Battery Issues: Some owners have experienced problems with the tractor’s battery, such as it not holding a charge or failing prematurely. This can be due to factors such as improper maintenance, extreme temperatures, or electrical system issues.
  2. Hydraulic Leaks: Hydraulic leaks can occur in various parts of the tractor’s hydraulic system, including hoses, fittings, and seals. These leaks can lead to reduced hydraulic performance or fluid loss, requiring repairs or replacements.
  3. Transmission Problems: Issues with the transmission, such as difficulty shifting gears, slipping, or grinding noises, have been reported by some owners. These problems may be caused by issues with the transmission fluid, linkage, or internal components.
  4. Starter Motor Failure: Some owners have experienced problems with the starter motor failing to engage or start the engine. This can be due to issues with the starter motor itself, the battery, or the electrical system.
  5. PTO Malfunction: Problems with the power take-off (PTO) system, such as failure to engage or disengage, can occur. This can be caused by issues with the PTO clutch, wiring, or controls.
  6. Engine Overheating: Overheating of the engine can occur due to factors such as clogged cooling fins, low coolant levels, or a malfunctioning cooling fan. This can lead to engine damage if not addressed promptly.
  7. Fuel System Issues: Problems with the fuel system, such as fuel leaks, clogged fuel filters, or contaminated fuel, can affect engine performance and reliability.
  8. Electrical Problems: Various electrical issues, such as blown fuses, faulty wiring, or malfunctioning sensors, can occur and affect the tractor’s operation.

Kubota BX2370 Oil Filter, Oil Type and Oil Capacity

  1. Oil Filter: The compatible oil filter for the Kubota BX2370 is typically the Kubota part number HH150-32094 or equivalent. It’s essential to use a high-quality filter to ensure proper filtration and engine protection.
  2. Oil Type: Kubota recommends using diesel engine oil that meets the specifications outlined in the tractor’s operator’s manual. Typically, this would be a diesel engine oil that meets or exceeds the API (American Petroleum Institute) classification of CF-4 or higher. The viscosity grade may vary depending on the operating conditions, but a common recommendation is SAE 15W-40 for most applications.
  3. Oil Capacity: The oil capacity of the Kubota BX2370 engine varies slightly depending on the specific model and configuration. However, it’s generally in the range of 3.5 to 4.0 liters (3.7 to 4.2 quarts) when changing the oil and filter. It’s essential to check the oil level using the dipstick after adding oil to ensure it’s within the recommended operating range.

Kubota BX2370 Tail Light Lens

You can find the left-hand (LH) tail light lens for the Kubota BX2370 with part number K2581-62780 and the right-hand (RH) tail light lens with part number K2581-62790. These are available for purchase from various online retailers, including Ku-Part, eBay, and Coleman Equipment. The prices and availability may vary, so you can choose the source that best suits your needs.

Kubota BX2370 Manual

Service Manual Sections

  1. Introduction: This section usually provides an overview of the tractor model, including its specifications, features, and safety precautions.
  2. Safety Information: Safety is paramount when working with machinery. This section outlines important safety guidelines and precautions to follow while operating, servicing, or repairing the tractor.
  3. Maintenance Schedule: The maintenance schedule outlines the recommended service intervals for various components of the tractor, including engine oil changes, filter replacements, inspections, and lubrication points.
  4. Engine: This section covers maintenance and repair procedures for the tractor’s engine, including specifications, troubleshooting, removal and installation, overhaul, and adjustments.
  5. Transmission: Here, you’ll find information on maintaining and repairing the transmission system, including the clutch, gearbox, differential, and associated components.
  6. Hydraulic System: This section covers the tractor’s hydraulic system, including maintenance, troubleshooting, and repair procedures for hydraulic pumps, cylinders, valves, and hoses.
  7. Electrical System: Information on the tractor’s electrical system, including wiring diagrams, troubleshooting procedures, and repair instructions for components such as the battery, alternator, starter motor, lights, and switches.
  8. Chassis and Body: This section covers maintenance and repair procedures for the tractor’s chassis, body, and related components, including the frame, fenders, hood, and operator platform.
  9. Steering and Suspension: Information on maintaining and repairing the tractor’s steering and suspension systems, including steering linkage, steering gear, front axle, and suspension components.
  10. Brakes: This section covers maintenance and repair procedures for the tractor’s braking system, including disc brakes, brake pedals, brake lines, and hydraulic brake components.
  11. Attachments: Information on installing, removing, and maintaining attachments such as loaders, mowers, backhoes, and implements.
  12. Troubleshooting: A troubleshooting guide that helps diagnose and resolve common problems and issues that may arise during operation or servicing of the tractor.
  13. Specifications: Detailed specifications and technical data for the tractor, including engine specifications, fluid capacities, torque values, and other relevant information.

Kubota Parts Manual PDF

  1. Table of Contents: Provides an overview of the manual’s contents and serves as a guide for navigating to specific sections or parts.
  2. Introduction: Offers general information about the equipment model, including specifications, features, and any special considerations for parts identification or ordering.
  3. Illustrated Parts Breakdown: This section usually includes detailed diagrams or exploded views of the equipment, with each part labeled and numbered for easy identification. It’s often organized by subsystems or assemblies, such as engine, transmission, hydraulic system, electrical system, and chassis.
  4. Part Number Index: Lists all the parts included in the manual, along with their corresponding part numbers. This index is useful for quickly locating a specific part based on its number.
  5. Parts Descriptions: Provides detailed descriptions and specifications for each part, including dimensions, materials, and compatibility information. This section may also include notes or cautions regarding installation or usage.
  6. Parts Ordering Information: Offers guidance on how to order parts from Kubota, including contact information for authorized dealerships or parts distributors. It may also include information about warranty coverage or return policies for parts.
  7. Appendices: Additional resources or reference materials may be included in the appendices, such as maintenance schedules, troubleshooting guides, or conversion charts.

Kubota BX2370 Battery

The Kubota BX2370 uses a Group 26R battery. This is a common battery size for sub-compact tractors and other small utility vehicles. Here are some specifications of the Kubota BX2370 battery:

  • Voltage: 12 volts
  • CCA (Cold Cranking Amps): 540
  • BCI Group: 26R
  • Terminal: Nut and bolt

Here are some things to consider when choosing a replacement battery for your Kubota BX2370:

  • Make sure the battery has the correct CCA rating. The CCA rating is a measure of the battery’s ability to start the engine in cold weather.
  • Choose a battery from a reputable brand. There are many different brands of batteries available, but it is important to choose a brand that has a good reputation for quality and performance.
  • Consider the warranty. Most batteries come with a warranty, so be sure to check the warranty terms before you make a purchase.

Here are some popular replacement batteries for the Kubota BX2370:

  • Kubota Genuine Battery (77700-00426): This is the OEM (original equipment manufacturer) battery for the Kubota BX2370. It is a good choice if you want a battery that is exactly the same as the original battery.
  • Optima Batteries RedTop 34R (34R): This is a high-performance battery that is designed for cold weather starting. It is a good choice if you live in a cold climate or if you use your tractor in winter.
  • X2 Power AGM Battery (X2-26R): This is an AGM (absorbed glass mat) battery that is maintenance-free and spill-proof. It is a good choice if you want a battery that is easy to care for and that will not leak.

Kubota BX2370 Hydraulic Fluid Capacity

The Kubota BX2370 compact utility tractor has a hydraulic fluid capacity of 11.7 liters (which is approximately 12.4 quarts). The recommended oil type for the transmission and hydraulic system is Kubota UDT, Super UDT, or Super UDT-2.

Kubota BX2370 Backhoe Attachment

The Kubota BX2370, unfortunately, does not offer a factory-made backhoe attachment. This is because the tractor’s 23 horsepower engine and overall size are not designed to handle the demands of a backhoe.

However, there are two alternative options to consider if you need backhoe functionality with your BX2370:

1. Upgrading to a BX Model with a Backhoe:

Kubota offers other BX models, such as the BX25D and BX26S, that come with a backhoe attachment as standard equipment. These models have more powerful engines and are better suited for backhoe work.

2. Using an Aftermarket Backhoe Attachment:

Several aftermarket manufacturers offer backhoe attachments that can be adapted to fit the Kubota BX2370. However, it’s crucial to carefully consider the limitations of this option:

  • Compatibility: Ensure the chosen aftermarket backhoe is specifically designed and compatible with the BX2370’s hydraulic system and lifting capacity.
  • Performance: The BX2370’s smaller size and power might limit the backhoe’s digging depth, reach, and overall performance compared to factory-equipped models.
  • Safety: Improper installation or exceeding the tractor’s capacity can lead to safety hazards. It’s essential to prioritize safe operation and follow the manufacturer’s instructions meticulously.

Here are some additional points to remember:

  • Using an aftermarket backhoe might void your tractor’s warranty.
  • Consult your Kubota dealer or a qualified mechanic for proper installation and guidance on using an aftermarket backhoe attachment safely and effectively.

Kubota BX2370 Lift Capacity

The Kubota BX2370’s lift capacity depends on two factors:

1. Lift point:

  • Pivot pin at max height: 745 lbs (338 kg)
  • 500mm forward at max height: 518 lbs (235 kg)

2. Bucket position:

  • Ground level reach: 52.4 inches (1330 mm) with a 48-inch wide bucket
  • Max lift height: 71.3 inches (1810 mm)

Important notes:

  • These are the rated lift capacities under ideal conditions. Always prioritize safety and never exceed the recommended capacity.
  • The lift capacity decreases as the lift point moves further away from the pivot pin. Consult the operator’s manual for a detailed chart showing the capacity at different lift points and boom angles.
  • Factors like terrain, stability, and attachment weight can also affect the actual lift capacity. Always operate your tractor on level ground and avoid exceeding the total vehicle weight rating.

Kubota BX2370 Air Filter

The Kubota BX2370 uses an air filter with the part number 77300-22820. It’s a dry-type air filter that helps protect the engine from dust, dirt, and other contaminants.

Here’s what you need to know about the Kubota BX2370 air filter:


  • The air filter is located under the hood, on the right side of the engine compartment.

Replacement Interval:

  • The recommended replacement interval for the air filter is every 200 hours of operation or annually, whichever comes first.
  • However, if you operate your tractor in dusty or dirty conditions, you may need to replace the filter more often.


  • You can clean the air filter by tapping it out to remove loose dirt and debris.
  • Do not use compressed air to clean the filter, as this can damage the filter element.


  • To replace the air filter, simply remove the old filter and install the new one.
  • Be sure to tighten the filter housing securely.

Kubota BX2370 Fuel filter

The Kubota BX2370 uses an in-line fuel filter with part number 77300-22821. It’s essential for removing contaminants from the fuel before it reaches the engine, protecting it from wear and tear.


The fuel filter is located on the right side of the engine compartment, near the fuel tank.

Replacement Interval:

  • The recommended replacement interval for the fuel filter is every 500 hours of operation or annually, whichever comes first.
  • However, if you operate your tractor in dusty or dirty conditions, you may need to replace the filter more often.


  1. Gather the necessary tools: You’ll need a wrench, pliers, a clean container to catch any spilled fuel, and a replacement fuel filter.
  2. Locate the fuel filter: As mentioned earlier, it’s on the right side of the engine compartment.
  3. Place the container under the filter: This will catch any spilled fuel.
  4. Loosen the hose clamps: Use the wrench to loosen the hose clamps on both ends of the fuel filter.
  5. Remove the old filter: Carefully pull the old filter out of the hoses.
  6. Install the new filter: Make sure the arrow on the new filter points in the direction of fuel flow (usually towards the engine).
  7. Tighten the hose clamps: Use the wrench to tighten the hose clamps on both ends of the new filter.
  8. Start the engine and check for leaks: Start the engine and look for any leaks around the fuel filter. If you see any leaks, tighten the hose clamps further.

Additional Tips:

  • Use a genuine Kubota fuel filter: This ensures a perfect fit and optimal performance.
  • Dispose of the old filter properly: Don’t throw it in the trash, as it can be harmful to the environment. Take it to a recycling center or hazardous waste disposal facility.
  • Consult your owner’s manual for specific instructions: The manual may have additional information or steps specific to your tractor model.

Kubota BX2370 Reviews

Here’s a summary of some common themes found in reviews:

  1. Reliability: Owners often highlight the Kubota BX2370’s durability and reliability, noting its ability to handle various tasks with ease and consistency. Many users report using the tractor for years without encountering major mechanical issues.
  2. Versatility: The BX2370 is praised for its versatility, thanks to its compatibility with a wide range of attachments such as loaders, mowers, backhoes, and implements. Owners appreciate the ability to tackle different tasks around the property using a single machine.
  3. Performance: Users often commend the tractor’s performance, noting its powerful engine, responsive transmission, and efficient operation. The BX2370 is reported to provide ample power and traction for tasks such as mowing, landscaping, snow removal, and light-duty hauling.
  4. Comfort and Ergonomics: Many owners appreciate the comfortable operator’s station and ergonomic design of the BX2370, which features intuitive controls, adjustable seating, and good visibility. The tractor’s compact size makes it easy to maneuver in tight spaces, while still providing a comfortable ride.
  5. Build Quality: Reviews frequently mention the high build quality and attention to detail in the construction of the BX2370. Owners note the use of sturdy materials and robust components, which contribute to the tractor’s overall durability and longevity.
  6. Customer Support: Kubota dealerships and customer support are often praised for their helpfulness, professionalism, and prompt service. Owners appreciate the availability of genuine Kubota parts and accessories, as well as the availability of maintenance and repair services.