Kubota KX057 Excavator : Prices, Specs, Buyers Guide

Kubota KX057

The Kubota KX057 is part of Kubota’s popular KX Series, known for its exceptional power, versatility, and compact size.

This excavator is designed to tackle a wide range of tasks with ease, from digging trenches and excavating foundations to loading and unloading materials.

With a weight of approximately 12,000 lbs (5,443 kg) and compact dimensions, it can easily navigate confined job sites without compromising its performance.

Features and Specifications

The KX057 has a number of features that make it a standout excavator in its class. These include:

  • A powerful engine that delivers 47.6 gross horsepower
  • A bucket breakout force of 10,172 pounds
  • A digging depth of 12 feet 9 inches
  • A maximum lifting capacity of 3,410 pounds
  • A comfortable and spacious operator’s cab
  • A variety of standard and optional features, such as a hydraulic quick coupler, a swing boom, and an air conditioner.

Kubota KX057-4 Specs

The key specifications for the Kubota KX057-4:


  • Engine Type: Kubota V2607-CR-T-E4, 4-cylinder, 4-cycle, turbocharged, direct injection diesel engine.
  • Displacement: 2.6 liters (2,597 cc).
  • Gross Horsepower: 47.6 horsepower (35.5 kW) at 2,200 RPM.
  • Emissions: Meets Tier 4 Final emission regulations.

Hydraulic System:

  • Hydraulic Pump Capacity: 2 x Variable Displacement Pumps (Main and Aux) – Total Flow: 31.4 GPM (118.9 L/min).
  • Operating Pressure (Auxiliary circuit): 3,046 psi (21 MPa).
  • Operating Pressure (Boom/Arm/Bucket): 3,553 psi (24.5 MPa).

Operating Weight:

  • Operating Weight (Cab): Approximately 12,292 lbs (5,573 kg).
  • Operating Weight (Canopy): Approximately 11,663 lbs (5,290 kg).


  • Overall Length (Transport): 18.9 feet (5,750 mm).
  • Overall Height (Canopy): 8.17 feet (2,485 mm).
  • Overall Width (Tracks Retracted): 6.33 feet (1,930 mm).
  • Overall Width (Tracks Extended): 7.89 feet (2,405 mm).
  • Ground Clearance: 1.24 feet (380 mm).
  • Max Digging Depth: 12.6 feet (3,840 mm).
  • Max Digging Height: 19.6 feet (5,960 mm).
  • Max Dumping Height: 13.6 feet (4,140 mm).
  • Max Vertical Digging Depth: 10.7 feet (3,275 mm).
  • Max Digging Radius: 20.7 feet (6,315 mm).
  • Min Front Swing Radius: 6.0 feet (1,825 mm).
  • Tail Swing Radius: 5.0 feet (1,520 mm).


  • Arm Digging Force: 7,154 lbs (32 kN).
  • Bucket Digging Force: 10,064 lbs (44.7 kN).
  • Max Travel Speed (Low Range): 1.5 mph (2.5 km/h).
  • Max Travel Speed (High Range): 2.9 mph (4.7 km/h).
  • Max Traction Force: 10,960 lbs (48.8 kN).


  • Fuel Tank Capacity: 20.7 gallons (78.5 liters).
  • Hydraulic Oil Tank Capacity: 10.8 gallons (41 liters).


  • Track Width: 17.7 inches (450 mm).
  • Ground Pressure (Rubber Tracks): 4.6 psi (31.7 kPa).
  • Ground Pressure (Steel Tracks): 5.1 psi (35.2 kPa).

Additional Features:

  • ROPS and FOPS certified canopy or enclosed cab for operator safety.
  • Standard auxiliary hydraulic circuits for attachments.
  • Adjustable suspension seat for operator comfort.
  • Air conditioning and heating available in the cab for all-weather comfort.
  • Easy-to-access maintenance points for routine servicing.
  • Optional hydraulic angle blade for added versatility.

Kubota KX057 Performance

The KX057 is a powerful and efficient excavator. It is powered by a Kubota V2607-DI-E3 diesel engine that delivers 47.6 gross horsepower. This engine is paired with a hydrostatic transmission that provides smooth and responsive power.

The KX057 has a bucket breakout force of 10,172 pounds, which gives it the power to handle even the toughest digging jobs. It also has a digging depth of 12 feet 9 inches and a maximum lifting capacity of 3,410 pounds, making it a versatile machine for a variety of tasks.

Comfort and Ergonomics

The KX057 operator’s cab is spacious and comfortable. It features a wide-open view of the work area, as well as a number of amenities, such as a heated seat, air conditioning, and a radio.

The KX057 also features a number of ergonomic features that make it easy to operate. The controls are all conveniently located and easy to reach, and the seat is adjustable for maximum comfort.

Standard and Optional Features

The KX057 comes standard with a number of features that make it a versatile and productive machine. These features include:

  • A hydraulic quick coupler
  • A swing boom
  • A power angle blade
  • A cleanup bucket
  • A hydraulic thumb
  • A seven-inch LCD monitor
  • A rearview camera

The KX057 also offers a number of optional features, such as:

  • An air conditioner
  • A heated seat
  • A radio
  • A work light kit
  • A track extension kit
  • A hydraulic line kit
  • The KX057 is available in canopy or cab models.
  • The cab model features a heating and air conditioning system for operator comfort.
  • The KX057 has a two-speed travel system for fast and efficient movement around the job site.
  • The KX057 is equipped with a load sensing system that automatically adjusts hydraulic power to the load, for improved efficiency and performance.
  • The KX057 has a number of safety features, including a seat belt alarm, a rollover protective structure (ROPS), and a falling object protective structure (FOPS).

Kubota KX057-5 Price

The price of the Kubota KX057-5 varies depending on the dealer, location, and other factors. Here are some search results that provide information on the price of the Kubota KX057-5:

  • MachineryTrader.com lists new and used Kubota KX057-5 excavators for sale, but does not provide specific pricing information
  • EquipmentTrader.com lists new and used Kubota KX057-5 excavators for sale, but does not provide specific pricing information
  • Boom & Bucket provides a list of specs and features for the Kubota KX057-5, including a purchase price of $80,750 and rental prices of $410 for a day, $205 for a half day, and $1,610 for a week.
  • Fastline.com lists new and used Kubota KX057-5 excavators for sale, with prices ranging from $63,500 to $82,900 depending on the dealer and location.

It is recommended to contact local Kubota dealers for specific pricing information on the Kubota KX057-5.

Kubota KX057 Weight

The weight of the Kubota KX057 varies depending on the model and the source. Here are some relevant information:

  • The operating weight of the Kubota KX057-5 is listed as 13,338 lbs (including operator’s weight @ 165 lbs) in the Kubota brochure
  • The RitchieSpecs Equipment Specs & Dimensions website lists the operating weight of the Kubota KX057-4A1 as 26,709.1 lbs
  • The Coleman Equipment website does not provide specific weight information for the Kubota KX057-4 or KX057-5

Therefore, the weight of the Kubota KX057-5 is 13,338 lbs according to the Kubota brochure.

Kubota KX057 Parts and Parts Diagram

the main parts and components of the Kubota KX057-4:

  1. Engine: The engine is the heart of the excavator and is responsible for powering the machine. In the KX057-4, it’s a Kubota V2607-CR-T-E4 diesel engine.
  2. Hydraulic System: The hydraulic system includes various components like pumps, hoses, and cylinders. It powers the boom, arm, and bucket movements, as well as any auxiliary attachments.
  3. Cabin or Canopy: The operator’s station provides a comfortable and safe working environment. It typically includes the operator’s seat, controls, gauges, and safety features.
  4. Undercarriage: This includes components such as tracks, sprockets, rollers, and idlers. The undercarriage supports the machine and allows it to move over various terrains.
  5. Boom and Arm: These are the structural components responsible for extending and retracting to reach different digging depths and heights. The bucket or attachment is connected to the arm.
  6. Bucket or Attachment: The bucket is the primary attachment for digging, but the KX057-4 is designed to accept various other attachments, such as hydraulic breakers, thumbs, grapples, and more, for different tasks.
  7. Tracks: The tracks provide traction and stability, allowing the excavator to move and operate on different surfaces.
  8. Counterweight: The counterweight is typically located at the rear of the excavator and helps balance the machine during operation.
  9. Swing Mechanism: This allows the upper structure of the excavator to rotate, enabling the machine to reach various areas around it.
  10. Fuel Tank: The fuel tank stores diesel fuel for the engine.
  11. Cooling System: The cooling system, which includes components like the radiator, ensures that the engine remains at the proper operating temperature.
  12. Electrical System: This includes the electrical components, wiring, and controls necessary for operating lights, safety features, and the machine’s electrical systems.
  13. Operator Controls: The excavator is equipped with control panels, joysticks, and pedals that the operator uses to manipulate the machine’s movements and functions.
  14. Safety Features: Safety features can include ROPS (Roll-Over Protection Structure), FOPS (Falling Object Protection Structure), travel alarms, cameras, and other systems designed to protect the operator and others on the worksite.
  15. Lubrication Points: The excavator has various lubrication points that need regular maintenance to keep the moving parts functioning correctly.
  16. Exhaust System: This system manages the emissions from the engine to meet environmental standards and regulations.

You can typically access parts diagrams for Kubota equipment:

  1. Visit the Official Kubota Website: Kubota often provides parts diagrams and manuals for their equipment on their official website. You can look for a “Parts” or “Service” section and search for the specific model, such as the Kubota KX057-4, to access the diagrams.
  2. Contact a Local Kubota Dealer: Local Kubota dealers or authorized service centers often have access to parts diagrams for Kubota equipment. They can help you identify and order the parts you need.
  3. Use Online Parts Retailers: There are also online parts retailers and third-party websites that may provide parts diagrams for Kubota equipment. Be sure to verify the reliability and authenticity of the source before making any purchases.
  4. Consult the Equipment Manual: If you have the operator’s manual or service manual for the Kubota KX057-4, it may include parts diagrams and information on how to identify and replace specific components.

When accessing parts diagrams, it’s essential to have the specific model and serial number of your Kubota KX057-4 excavator, as this information will ensure that you are looking at the correct diagrams for your equipment.

If you’re not confident in identifying and ordering parts, it’s a good idea to work with your local Kubota dealer or service center, as they can provide you with expert guidance and assistance.

Kubota KX057 Problems

the Kubota KX057 excavator has been generally well-regarded for its performance and durability. However, like any piece of heavy equipment, it can encounter problems and issues. Some common issues reported by users in the past may include:

  1. Hydraulic Problems: Hydraulic systems can be susceptible to issues like leaks, reduced performance, or insufficient pressure. Regular maintenance and inspections of the hydraulic system can help prevent and address these issues.
  2. Overheating: High operating temperatures can lead to engine overheating, which can be caused by issues with cooling systems or clogged radiators. Proper maintenance and ensuring the cooling system is functioning correctly can mitigate overheating problems.
  3. Electrical Issues: Electrical problems may include malfunctioning sensors, wiring issues, or problems with the starter or alternator. Regular inspections of the electrical system can help identify and resolve these issues.
  4. Track and Undercarriage Problems: Track tension, sprocket wear, and other undercarriage components can experience wear and tear, leading to reduced performance and efficiency. Regular maintenance and inspection of the undercarriage can help prevent these problems.
  5. Lubrication and Greasing: Failure to properly lubricate and grease moving parts can lead to premature wear and component failure. Regular greasing and maintenance are essential to prevent such issues.
  6. Emission Control Systems: Given the KX057’s compliance with emissions regulations, issues related to emission control systems can arise. Regular servicing and adherence to maintenance schedules are crucial to address these problems.
  7. Leaking fluids: Some users have reported issues with fluid leaks in the Kubota KX057
  8. Starting issues: Starting problems have been reported, including a failing starter, cold weather, a dead battery, and faulty wiring
  9. Overheating issues: Overheating problems have been reported with the Kubota KX057
  10. Hydraulic problems: Some users have reported hydraulic problems with the Kubota KX057, including slow operation and fluid leaking
  11. Cabin noise: Cabin noise has been reported as an issue with the Kubota KX057
  12. Front blade hydraulic issues: One user reported that the front blade hydraulic system was not strong enough and lost pressure when the machine rocked forward from digging pressure
  13. Engine problems: Engine problems can range from minor issues, such as a clogged air filter, to more serious problems, such as a blown head gasket. If you are experiencing any engine problems with your KX057, it is important to have them diagnosed and repaired by a qualified mechanic.
    • Undercarriage problems: The undercarriage of the KX057 is made up of tracks, rollers, and idlers. These components can wear out over time and need to be replaced.
    • Attachment problems: The KX057 can be used with a variety of attachments, such as buckets, augers, and hammers. These attachments can also wear out over time and need to be replaced.
    • Operator error: Some problems with the KX057 can be caused by operator error. It is important to read and understand the owner’s manual before operating the KX057.

    If you are experiencing any problems with your Kubota KX057, it is important to have them diagnosed and repaired by a qualified mechanic. Do not attempt to repair any problems yourself unless you have the necessary training and experience.

    Here are some tips to help prevent problems with your Kubota KX057:

    • Perform regular maintenance on your excavator. This includes changing the oil, cleaning the air filter, and greasing the moving parts.
    • Inspect your excavator regularly for any signs of damage or wear. If you notice any problems, have them repaired as soon as possible.
    • Operate your excavator according to the owner’s manual. Avoid overloading the excavator or operating it in extreme conditions.

It’s important to note that the longevity and performance of the Kubota KX057 largely depend on proper maintenance and operation.

Routine inspections, adherence to maintenance schedules, and prompt addressing of any issues are essential to keep the equipment in good working condition.

Additionally, it’s advisable to consult the equipment’s manual and work with authorized Kubota service centers for maintenance and repair tasks to ensure proper care and diagnosis of any problems.

Kubota KX057 Applications

The KX057 is a versatile excavator that can be used for a variety of tasks. Some of the most common applications for the KX057 include:

  • Site preparation
  • Excavation
  • Trenching
  • Backfilling
  • Landscaping
  • Demolition


The KX057 is a low-maintenance excavator. It features a number of features that make it easy to maintain, such as:

  • A centralized grease bank
  • Easy-access service points
  • A self-cleaning air filter

Engine and Performance

At the heart of the Kubota KX057 lies a powerful and efficient Kubota V2403-CR-TE4 diesel engine. This 4-cylinder, 4-stroke engine produces 46.3 horsepower, delivering the muscle needed to handle various excavation tasks. The engine is compliant with Tier 4 Final emissions regulations, ensuring a more environmentally friendly operation.

The KX057 boasts impressive digging capabilities. Its maximum digging depth of 12.5 feet (3.8 meters) and digging reach of 19.7 feet (6 meters) make it a formidable excavator for jobs that require precision and depth. Moreover, it offers a lifting capacity of 3,960 lbs (1,795 kg) at ground level, ensuring that heavy loads can be handled effortlessly.

Hydraulic System

One of the standout features of the Kubota KX057 is its advanced hydraulic system. Equipped with a powerful variable displacement pump, this system optimizes the flow of hydraulic fluid to different functions, allowing for smooth and precise control of the machine’s movements. The advanced hydraulic system also provides improved fuel efficiency, reducing operational costs and increasing productivity.

The excavator features two hydraulic circuits, enabling simultaneous operation of multiple functions without sacrificing power or speed. This versatility is a game-changer on the job site, as it allows operators to perform tasks more efficiently and quickly.

Operator Comfort

Kubota has paid special attention to the operator’s comfort and convenience when designing the KX057. The spacious cab is designed for maximum visibility, with large windows and a wide field of vision. The cab also features a suspension seat with ample adjustments, providing a comfortable and ergonomic workspace for long hours of operation.

The intuitive control layout and user-friendly interface make it easy for operators to familiarize themselves with the machine quickly. The excavator is also equipped with air conditioning and heating options, ensuring that operators can work comfortably in all weather conditions.

Durability and Maintenance

The Kubota KX057 is built to last. Its rugged construction and high-quality materials ensure that it can withstand the toughest job site conditions. The undercarriage is designed for maximum stability and durability, making it suitable for a wide range of terrains.

Maintenance is made easy with the KX057, thanks to its convenient access points and serviceable components. Routine maintenance tasks, such as changing filters and inspecting fluids, can be performed quickly, reducing downtime and keeping the machine in optimal condition.

Kubota KX057 Attachments

What truly sets the Kubota KX057 apart is its versatility. It is designed to accept a wide range of attachments, turning it into a multifunctional workhorse. Whether you need a bucket for excavation, a hydraulic breaker for demolition, or a grapple for material handling, the KX057 can accommodate various attachments, making it suitable for a diverse range of tasks.

The Kubota KX057-5 excavator is designed to be compatible with various attachments to enhance its versatility and productivity on the job site. Some of the common attachments that can be used with the Kubota KX057-5 include:

  1. Buckets: Various bucket options are available, including general-purpose buckets for digging and loading, ditching buckets for creating trenches and ditches, and grading buckets for leveling and finishing work.
  2. Hydraulic Breaker: A hydraulic breaker attachment is used for breaking up concrete, rock, and other hard materials. It’s commonly used in demolition and construction projects.
  3. Auger: Auger attachments are used for drilling holes in the ground for applications such as fencing, signpost installation, and tree planting.
  4. Thumb/Grapple: These attachments are used for handling and picking up materials such as logs, rocks, and debris. They’re ideal for land clearing and forestry applications.
  5. Ripper: A ripper attachment is used for breaking up hard and compacted soil, as well as for preparing the ground for various tasks.
  6. Tilt Bucket: A tilt bucket attachment provides added flexibility for grading, ditching, and landscaping work by allowing the bucket to tilt to the side.
  7. Compaction Wheel: Compaction wheels are used for compacting soil and materials in trenches, around utility lines, and in other construction applications.
  8. Quick Coupler: A quick coupler system makes it easier and faster to change attachments, reducing downtime and increasing productivity.
  9. Pallet Forks: Pallet forks are used for lifting and moving palletized materials, equipment, and supplies on the job site.
  10. Breaker Plate: A breaker plate attachment can be used for breaking up pavement, asphalt, and concrete in roadwork and construction projects.
  11. Grading Blade: A grading blade attachment is used for grading, leveling, and backfilling tasks. It’s especially useful for landscaping and road construction.
  12. Land Clearing Rake: A land clearing rake attachment is designed for clearing and raking brush, debris, and vegetation in land clearing projects.
  13. Tree Shear: Tree shear attachments are used for cutting and removing trees and branches, making them useful in forestry and land management.

The quick coupler system allows for swift and hassle-free attachment changes, increasing productivity on the job site. This adaptability ensures that the KX057 remains a valuable asset, capable of handling different tasks as the need arises.

Safety Features

Safety is a top priority in the construction industry, and Kubota has equipped the KX057 with several safety features to protect both operators and bystanders.

The excavator is fitted with a travel alarm that alerts those nearby when the machine is in motion. Additionally, the rearview camera enhances visibility and helps prevent accidents during operation.

Customer Reviews

The Kubota KX057 is well-regarded by customers. Here are a few customer reviews:

  • “The Kubota KX057 is a great excavator. It’s powerful, reliable, and easy to operate. I’ve used it for a variety of tasks, including site preparation, excavation, and trenching, and it’s performed flawlessly.” – Contractor
  • “I’ve been using the Kubota KX057 for over a year now and I’m very happy with it. It’s a tough machine that can handle anything I throw at it. I also appreciate the comfortable operator’s cab and easy-to-use controls.” – Landscape Contractor
  • “The Kubota KX057 is a great value for the money. It’s a well-built machine that’s packed with features. I’m confident that it will last for many years to come.”


The Kubota KX057 excavator is a compact powerhouse that has earned its reputation as a reliable, versatile, and high-performing machine.

With its powerful engine, advanced hydraulic system, operator-friendly cab, and adaptability to various attachments, it is a favorite among contractors and operators in the construction industry.

Its durability and safety features make it an excellent investment for businesses looking to boost productivity and efficiency on the job site.

Whether you’re digging foundations, clearing land, or handling materials, the Kubota KX057 is up to the task, delivering exceptional performance with ease.

With Kubota’s commitment to innovation and quality, the KX057 excavator is poised to remain a top choice for construction professionals for years to come.