Kubota

About Kubota Construction Machinery

Kubota Corporation is one of Japan's most respected and internationally recognised manufacturers of agricultural and construction machinery, with a corporate history spanning more than 130 years. Founded in 1890 in Osaka, Japan, by Gonshiro Kubota, the company began as a manufacturer of cast iron products — pipes, fittings, and agricultural implements — serving Japan's rapidly developing infrastructure and agricultural sectors during the Meiji era of national modernisation. Gonshiro Kubota's founding commitment to manufacturing products of the highest quality from the finest available materials established a company culture of engineering excellence and quality obsession that has defined Kubota's products and reputation for over a century.

Kubota's entry into engine manufacturing came in 1922 when the company produced its first internal combustion engine — a kerosene-powered engine for agricultural water pumps. This early foray into engine technology laid the foundation for what would become one of Kubota's most important and globally recognised product lines — compact diesel engines that are today fitted in construction equipment, agricultural machinery, generators, and industrial equipment across the world. Kubota diesel engines are widely regarded as among the most reliable, fuel-efficient, and long-lived compact diesel engines in production — a reputation built over a century of continuous engine development and refinement.

Kubota entered the construction equipment market in 1970 with the introduction of its first mini excavator — a compact hydraulic excavator designed to work in confined spaces and on smaller job sites where full-size excavators could not operate effectively. This was a pioneering move that helped establish the mini excavator as a distinct and important equipment category in the global construction industry. Over the following decades, Kubota developed and refined its mini excavator range into one of the most comprehensive and highly regarded compact excavator product lines in the world — covering machine sizes from less than one tonne through to eight tonnes and covering an extraordinary range of construction, landscaping, utility, and agricultural earthmoving applications.

Today, Kubota is a global enterprise with annual revenues exceeding 2 trillion Japanese yen, employing over 47,000 people across manufacturing facilities and distribution networks in Japan, the United States, Europe, and Asia. In Australia, Kubota is one of the most widely operated compact equipment brands across construction, landscaping, civil, agricultural, and utility applications — the distinctive orange Kubota mini excavator is a familiar and trusted presence on job sites of all sizes across the country. With such a large installed base of Kubota machines across Australia, access to quality Kubota excavator parts through a reliable local supplier like Lucas Parts is essential for keeping Australian operations running productively.

Kubota Excavator Parts We Supply

At Lucas Parts, we stock a comprehensive range of Kubota excavator spare parts to suit Kubota mini excavators and compact excavators across the full model range. Our Kubota excavator parts inventory includes:

• Rubber tracks — replacement rubber tracks for Kubota mini excavators and compact excavators in a comprehensive range of widths and pitches to suit all common Kubota models
• Undercarriage parts — track rollers, carrier rollers, sprockets, idlers, and track frames for Kubota mini and compact excavators
• Wear parts — bucket teeth, cutting edges, side cutters, and bucket pins for Kubota excavator buckets across a range of bucket sizes and configurations
• Hydraulic components — hydraulic pumps, motors, cylinders, control valves, seals, and hoses for Kubota excavator hydraulic systems
• Engine parts — filters, belts, water pumps, fuel injectors, and gaskets for Kubota diesel engine configurations including V2403, V3307, V3800, and D series engines
• Structural components — swing bearings, boom pins, arm pins, bucket link pins, and frame bushings for Kubota excavators
• Hydraulic seal kits — complete seal kits for boom cylinders, arm cylinders, bucket cylinders, and blade cylinders on Kubota excavators
• Filters — hydraulic filters, engine oil filters, fuel filters, and air filters for Kubota excavator service requirements
• Electrical parts — sensors, switches, relays, solenoids, glow plugs, and wiring components for Kubota excavator electrical systems
• Cab and operator components — cab glass, door seals, seat assemblies, joystick controls, and canopy components for Kubota excavator operator stations
• Dozer blade components — blade cutting edges, blade pins, and hydraulic cylinder components for Kubota excavator dozer blade attachments

Can't find the Kubota excavator part you need? Call our team on 1300 987 300 and we will source it for you.

Why Choose Lucas Parts for Kubota Excavator Parts?

• Australian stock — faster delivery, no lengthy international lead times
• Competitive pricing — genuine and quality aftermarket Kubota excavator parts at competitive rates
• Expert advice — our team understands Kubota excavator models and can help identify the correct part for your specific machine model and serial number
• Full warranty — all Kubota excavator parts are inspected and covered before dispatch
• Minimise downtime — Kubota mini excavators are often the most versatile and hardest-working machines on smaller construction and landscaping sites; every hour of downtime directly impacts your project productivity and profitability

Genuine vs Aftermarket Kubota Excavator Parts — Which Should You Choose?

Genuine Kubota OEM parts are manufactured to the exact engineering specifications of your machine and are the recommended choice for critical components such as hydraulic pumps, swing bearings, engine components, and electronic control units. For Kubota excavators still under warranty or operating in high-productivity roles where reliability is paramount, genuine OEM parts provide the assurance of correct fit and guaranteed performance that protects your investment.

For high-frequency consumable items such as rubber tracks, bucket teeth, cutting edges, filters, and hydraulic seal kits, quality aftermarket Kubota-compatible parts offer a cost-effective alternative that delivers equivalent performance at a lower price point. This is particularly relevant for owner-operators and landscaping and construction businesses running multiple Kubota machines where wear part and service part consumption is high and keeping maintenance costs under control is important to maintaining healthy margins.

At Lucas Parts, we supply both genuine and premium aftermarket Kubota excavator parts, giving you the flexibility to make the right choice for each component based on criticality, budget, and your machine's operating conditions. Our team is happy to advise you on the best option for your specific Kubota model and application.

Kubota Excavator Models We Support

We supply parts for a wide range of Kubota mini excavator and compact excavator models commonly operated in Australia, including:

• Kubota U series — U10-3, U15-3, U17, U20-3, U25-3, U27-4, U30-6, U35-4, U48-4, U50-5, U55-4, and U57-5 zero tail swing and conventional tail swing compact excavators
• Kubota KX series — KX016-4, KX018-4, KX019-4, KX027-4, KX033-4, KX040-4, KX057-6, KX080-4, KX080-4S, KX085-5, KX91-3, KX101-3A, KX121-3, KX161-3, and KX163-5 mini and compact excavators
• Kubota RX series — RX-137, RX-142, RX-228, RX-306, RX-406, and RX-506 compact excavators
• Kubota R series — R520, R530, R630, R530B, and R630B compact excavators

Don't see your Kubota excavator model listed? Contact us — we support a broad range of current and legacy Kubota excavator models and will do our best to source the parts you need.

Kubota Diesel Engines in Excavators — What You Need to Know

One of the most significant advantages of owning a Kubota excavator is that the machine is powered by a Kubota diesel engine — one of the most reliable, widely supported, and best-serviced compact diesel engine brands in the Australian market. Kubota diesel engines fitted in Kubota excavators include:

• Kubota D series — D902, D1105, D1305, and D1703 two and three cylinder compact diesel engines used in the smallest Kubota mini excavator models
• Kubota V2203 and V2403 series — four-cylinder diesel engines used in mid-size Kubota KX and U series excavators — one of the most widely operated Kubota engine families in the Australian construction and agricultural market
• Kubota V3307 series — four-cylinder turbocharged diesel engine used in larger Kubota KX and U series compact excavators requiring higher power output
• Kubota V3800 series — four-cylinder turbocharged diesel engine used in the largest Kubota compact excavator models including the KX080 and U57 series

Because Kubota manufactures both the excavator and the engine, Kubota excavator owners benefit from a fully integrated OEM parts supply chain for both machine-specific components and engine service parts. Lucas Parts stocks a comprehensive range of Kubota engine service and repair parts for all of the engine families fitted in Kubota excavators — giving Kubota owners a single reliable local source for both excavator and engine parts.

Kubota Mini Excavator Rubber Tracks — Selection and Maintenance

Rubber tracks are the single most frequently replaced wear item on Kubota mini excavators and compact excavators — and selecting the correct replacement track for your machine is more important than most operators realise. Kubota mini excavator rubber tracks are defined by three key dimensions — width, pitch, and link count — and all three must be correct for the track to fit and perform properly on your machine. Using a track with incorrect pitch or link count — even if the width appears similar — will result in incorrect track tension, accelerated sprocket and idler wear, and potential track derailment.

Track compound selection is also important for Australian Kubota excavator operators. Standard rubber track compound is suitable for most construction and landscaping applications. For operators working primarily on abrasive surfaces such as concrete, asphalt, gravel, or rock — common in urban construction, road works, and quarrying applications — premium high-durability compound tracks offer significantly longer service life at a moderately higher initial cost. Our team can advise on the correct track specification and compound selection for your specific Kubota model and operating environment.

Key rubber track maintenance practices for Kubota mini excavator owners include regular track tension inspection and adjustment — over-tight tracks accelerate sprocket, idler, and roller wear while over-loose tracks risk derailment — and avoidance of prolonged operation on highly abrasive surfaces where rubber track wear rates are highest. Removing accumulated mud and debris from the undercarriage at the end of each working day significantly extends rubber track and undercarriage component service life.

Serving Construction and Landscaping Businesses Across Australia

Lucas Parts supplies Kubota excavator parts to customers in Melbourne, Sydney, Brisbane, Perth, Adelaide, Darwin, and regional Australia. We work with civil contractors, landscaping businesses, earthmoving companies, agricultural operators, utility contractors, plant hire businesses, and equipment dealers who need reliable Kubota excavator parts supply with fast turnaround.

Browse our full Kubota excavator parts catalogue or contact our team today to discuss your requirements.

Frequently Asked Questions — Kubota Excavator Parts

How do I find the correct Kubota excavator part for my machine?

The most reliable method is to locate your machine's model designation and serial number from the machine identification plate — typically found on the cab or canopy frame or on the main frame — and have these details ready when you contact us. For Kubota excavators, the serial number is particularly important as parts specifications can vary between early and late production machines of the same model designation, particularly for hydraulic components and engine parts that were updated during the production run. Our team can cross-reference your serial number against Kubota's parts catalogue to identify the correct part before you order.

How do I measure the correct rubber track size for my Kubota excavator?

Kubota mini excavator rubber tracks are defined by three dimensions — width in millimetres, pitch in millimetres, and link count. The width is measured across the full width of the track. The pitch is measured between the centres of adjacent track links. The link count is the total number of links in the complete track. All three dimensions must be confirmed before ordering a replacement track. The easiest way to confirm these dimensions is to provide us with your Kubota machine model and serial number — our team can identify the correct track specification from the machine records without needing to physically measure the existing track.

How long do rubber tracks last on a Kubota mini excavator?

Rubber track service life on a Kubota mini excavator varies significantly depending on the operating surface, track tension maintenance, and the overall condition of the undercarriage. In typical mixed-surface construction and landscaping conditions, Kubota mini excavator rubber tracks generally last between 1,000 and 1,500 operating hours. Operating predominantly on highly abrasive surfaces such as concrete, asphalt, gravel, or rock will significantly reduce track life — in severe cases to as few as 300 to 500 hours. Correct track tension adjustment and regular undercarriage cleaning are the most effective maintenance practices for maximising rubber track service life on Kubota excavators.

What are the most common maintenance items on Kubota mini excavators?

The most frequently replaced maintenance and service items on Kubota mini excavators in Australian service include engine oil and oil filter at the recommended service intervals — typically every 200 to 250 operating hours — fuel filter replacement every 400 to 500 hours, hydraulic oil and hydraulic filter replacement at the manufacturer's recommended intervals, rubber track tension inspection and adjustment every 50 hours and replacement when worn beyond serviceable limits, bucket teeth and cutting edge replacement based on wear monitoring, and hydraulic cylinder seal kit replacement on higher-hour machines. Keeping a supply of common service items on hand minimises downtime when routine maintenance is due.

Do you supply swing bearing replacements for Kubota excavators?

Yes. Swing bearings are one of the most significant repair items on any excavator including Kubota compact and mini excavators. We supply aftermarket swing bearing replacements for the most commonly operated Kubota excavator models in Australia. Signs of a worn or failing Kubota excavator swing bearing include excessive play or wobble in the upper structure during slewing, abnormal noise during swing operation, and visible grease leakage from the swing bearing seal. Contact our team with your Kubota model and serial number for swing bearing availability and pricing.

What hydraulic oil should I use in my Kubota excavator?

Kubota recommends using hydraulic oil meeting ISO VG 46 specification for standard Australian operating temperature conditions in its excavator hydraulic systems. In very high ambient temperature conditions — such as those experienced in northern Australia and during peak summer in Queensland and Western Australia — ISO VG 68 hydraulic oil may be advisable to maintain adequate oil film thickness at elevated operating temperatures. Always refer to your Kubota excavator's operation and maintenance manual for the specific hydraulic oil grade and change interval recommended for your model and operating climate.

How long does delivery take?

Delivery timeframes depend on your location and whether the part is in local stock or needs to be sourced. We will always provide you with a clear lead time before you confirm your order so there are no surprises.

Are your Kubota excavator parts covered by a warranty?

Yes. All Kubota excavator parts supplied by Lucas Parts carry a warranty. Speak to our team for specific warranty terms applicable to the part you are purchasing.

Can I order Kubota excavator parts online?

Yes. You can browse and order through our website at lucasparts.com.au, or call us on 1300 987 300 for personalised assistance.