The Kubota KX037-4 is a 3.7 tonne conventional swing mini excavator designed for professional construction and groundwork use.

Unlike zero tail swing models, the KX037-4 has a conventional rear swing, which allows for a larger counterweight and improved lifting stability. This makes it well suited to tasks such as trenching, foundation work, drainage installation, and material handling where balance and reach are important.

The machine sits in the upper end of the mini excavator range, offering more power and cab space than smaller models while still remaining compact enough for restricted sites.

Contractors often choose the KX037-4 when they want a step up from 3 tonne machines without moving into a full midi or crawler excavator class.

The Kubota KX037-4 is powered by a 24.2 PS (17.8 kW) Kubota diesel engine, delivering strong and consistent performance for its size class.

This engine provides enough power for demanding digging and lifting tasks while remaining fuel efficient during day-to-day operation. It is designed to run smoothly with low vibration and reduced noise, which improves operator comfort and helps meet site restrictions. The engine also works closely with Kubota’s hydraulic system to maintain steady performance when using attachments such as breakers or augers. For contractors, this means reliable output without excessive fuel use, making the KX037-4 a practical choice for long working days and mixed site conditions.

Yes, the Kubota KX037-4 is Stage V compliant, meaning it meets the latest UK and EU emissions regulations for non-road mobile machinery. Stage V compliance reduces particulate emissions and exhaust output, making the machine suitable for use on regulated construction sites, urban areas, and projects with environmental targets. This is especially important for contractors working on public sector, infrastructure, or low-emission zone projects where compliance is closely monitored. Choosing a Stage V excavator also helps future-proof your fleet, as older non-compliant machines may face restrictions or reduced resale value. The KX037-4 achieves this compliance without compromising power or usability, which is a key reason it remains popular across the UK.

The Kubota KX037-4 is best suited for groundworks, utilities, landscaping, and general construction tasks that require a balance of power, stability, and compact size.

It performs well on residential and commercial sites where space may be limited but lifting capacity still matters. Common uses include digging footings, laying drainage, trenching for services, and site clearance. Its conventional swing design improves balance when lifting or grading, while the auxiliary hydraulics allow it to run attachments efficiently. The machine is also a strong fit for hire fleets, as it offers a good mix of durability, operator comfort, and broad appeal across different types of customers.

The Kubota KX037-4 cab is designed with operator comfort and usability in mind, especially for long working hours. Compared to earlier models, the cab offers more legroom, a wider entrance, and improved seating position. Controls are laid out logically, helping operators work accurately without unnecessary strain. A clear digital display provides key machine information at a glance, while optional air conditioning improves comfort in warm or enclosed environments. Reduced engine vibration and lower noise levels also contribute to a better working environment. For contractors, improved cab comfort often leads to better productivity and fewer breaks, which adds real value over the life of the machine

Yes, the Kubota KX037-4 is well suited to running hydraulic attachments such as breakers, augers, and compactors. The machine features an auxiliary hydraulic line with a direct oil return to tank when operating one-way attachments. This setup reduces back pressure within the system, improves oil flow, and lowers the risk of contamination. As a result, attachments run more smoothly and efficiently, particularly during continuous use. This makes the KX037-4 a flexible choice for contractors who regularly switch between buckets and powered attachments. Proper setup and genuine hydraulic components also help extend the life of both the excavator and the attachments.

Take a look at the Epiroc SB152 and SB202 hydraulic breakers that are suitable for the KX037-4. 

The Kubota KX037-4 is regarded as a highly reliable mini excavator, built to handle regular site use with minimal downtime. Kubota has a long-standing reputation in the UK for producing durable machines, and the KX037-4 reflects that focus on build quality and long service life. Strong components, proven engine design, and well-protected hydraulics all contribute to reliability. When supported by routine servicing and genuine parts, the machine can deliver consistent performance year after year. This reliability is one reason the KX037-4 is popular with both owner-operators and hire companies who depend on predictable uptime.

Buying a Kubota KX037-4 from BTE Plant Sales gives you more than just the excavator.

As an authorised Kubota dealer, BTE provides expert advice to help you choose the right machine for your work. You also gain access to genuine Kubota parts, trained engineers, and ongoing service support through mobile and workshop teams. With depots in Leicester, Leeds, and Leyland, help is never far away when downtime matters. Service contracts are available to protect your investment and keep the machine running properly. This level of aftersales support allows you to buy with confidence and focus on keeping your projects moving.