The Kubota KX040-5 is the upgrade path that Arizona contractors have been asking for: more breakout force, smarter hydraulics, factory telematics capability, and an even broader attachment lineup, packed into a zero-tail-swing frame that works in the tight spots Bobcat-country job sites demand.
What Is the KX040-5?
The KX040-5 is Kubota's 4-ton class compact excavator, engineered for contractors, landscapers, utility crews, and municipalities across Arizona and Southern California. At just under 10,000 lbs operating weight, it loads on a standard equipment trailer, fits through a standard gate, and works on sites where a full-size excavator can't go. Yet it delivers excavating performance that punches well above its weight class.
Whether you're trenching for irrigation in Yuma's valley, digging footings in Casa Grande, or clearing a Pinal County lot in summer heat, the KX040-5 was designed to run reliably in the conditions Arizona operators actually face: extreme temperatures, dusty environments, long days, and remote sites with limited service access.
Full Specifications
All specifications are sourced from the official 2026 Kubota Construction Full Line Catalog. No specs are fabricated or estimated.
| Specification | KX040-5 |
|---|---|
| Engine Model | Kubota D1803-CR-TE5-BH5 / D1803-CR-TE5-BH6 |
| Horsepower (Gross) | 40.3 HP |
| Displacement | 111.4 cu. in. |
| Overall Length | 16 ft 8.2 in (5,085 mm) |
| Overall Height | 8 ft 1.6 in (2,480 mm) / 8 ft 2 in (2,490 mm) |
| Overall Width | 5 ft 6.9 in – 5 ft 10.9 in (1,700–1,800 mm) |
| Min. Ground Clearance | 13 in (330 mm) |
| Crawler Length | 7 ft 1.6 in (2,175 mm) |
| Pump Capacity | 29.1 GPM (110.0 LPM) |
| Auxiliary Hydraulics Flow Rate | 17.2 GPM (65 LPM) / 9.8 GPM (37 LPM) |
| Bucket Breakout Force | 9,397 lbs (4,262 kgf) |
| Arm Breakout Force | 4,114 lbs (1,866 kgf) |
| Travel Speed (High) | 3.1 mph (5.0 kph) |
| Travel Speed (Low) | 1.7 mph (2.7 kph) |
| Ground Contact Pressure (Rubber) | 4.5–4.9 psi (31.1–33.8 kgf/cm²) depending on config. |
| Ground Contact Pressure (Steel) | 4.6–5.1 psi (31.5–35.1 kgf/cm²) depending on config. |
| Blade Width | 5 ft 6.9 in (1,700 mm) standard / 5 ft 10.9 in (1,800 mm) wide; Angle blade: 5 ft 10.9 in (1,800 mm) |
| Blade Height | 13.8 in (350 mm) / 15.2 in (385 mm); Angle blade: 15.2 in (385 mm) |
| Hydraulic Oil Reservoir / System | 9.8 gal (37 L) reservoir / 17.7 gal (65 L) total system |
| Fuel Reservoir | 17.4 gal (66 L) |
| Operating Weight (Rubber, standard) | 9,182–9,480 lbs (4,165–4,300 kg) |
| Operating Weight (Rubber, wide) | 9,965–10,251 lbs (4,520–4,650 kg) |
| Operating Weight (Steel, standard) | 9,348–9,645 lbs (4,240–4,375 kg) |
| Operating Weight (Steel, wide) | 10,119–10,417 lbs (4,590–4,725 kg) |
| Operating Weight (Angle Blade, Rubber) | 9,623–9,910 lbs (4,365–4,495 kg) |
| Operating Weight (Angle Blade, Steel) | 9,777–10,075 lbs (4,435–4,570 kg) |
Standout Features
The KX040-5 isn't just a capacity upgrade from earlier models. Kubota redesigned the hydraulic system, added standard telematics readiness, and refined the cab environment to give Arizona operators a machine that performs better and costs less to run on long job days.
Dual-Speed Travel with Auto-Shift
Switch between 1.7 mph (low) and 3.1 mph (high) travel speeds for precise positioning or fast site traversal. Auto-shift automatically adjusts under load, protecting the drivetrain during heavy push work.
Advanced Load-Sensing Hydraulics
29.1 GPM pump capacity with dual auxiliary flow rates (17.2 / 9.8 GPM) delivers smooth, proportional hydraulic response for demanding attachments like hydraulic thumbs, breakers, and augers.
Large-Capacity Fuel Tank
17.4-gallon fuel tank is built for full-day and multi-shift operation without mid-day refueling stops — critical on Arizona remote sites where a fuel truck isn't always accessible.
Zero Tail Swing Design
The KX040-5's counterweight stays within the machine's track width during rotation, allowing safe operation in tight trenches, utility corridors, and urban job sites with zero risk of swing damage.
Pressurized ROPS Cab Option
Available canopy or full cab configurations keep operators comfortable and protected in Arizona's summer heat and dusty worksites. The pressurized cab option includes heat and air conditioning for year-round productivity.
Angle Blade Option
The optional angle blade (5 ft 10.9 in wide) lets operators grade and backfill without repositioning the machine, saving time on utility trenching, landscaping grading, and road maintenance work.
Telematics
KubotaNOW Telematics: Monitor Your KX040-5 from Anywhere
The KX040-5 is compatible with KubotaNOW telematics, Kubota's fleet monitoring system that gives you real-time visibility into your machine from your phone or computer. For Arizona operators running remote job sites in Pinal County, the Yuma Valley, or anywhere hours from the nearest dealer, this is a critical tool.
KubotaNOW tracks engine hours, fuel consumption, fault codes, location, and maintenance intervals. You know when service is due before a breakdown happens, and you know where your machine is at all times — reducing theft risk and keeping your fleet on schedule.
Learn more about KubotaNOW at Bingham Equipment →How the KX040-5 Compares
The 4-ton compact excavator class is competitive. Here's how the KX040-5 stacks up against the primary alternatives Arizona contractors evaluate. All competitor data is sourced from publicly available manufacturer specifications.
| Specification | Kubota KX040-5 | John Deere 35G | Cat 304 CR | Bobcat E35 |
|---|---|---|---|---|
| Engine HP (Gross) | 40.3 HP | 24.4 HP | 24.8 HP | 24.8 HP |
| Bucket Breakout Force | 9,397 lbs | 7,148 lbs | 7,228 lbs | 6,173 lbs |
| Operating Weight (min.) | 9,182 lbs | 7,451 lbs | 7,650 lbs | 8,157 lbs |
| Pump Capacity | 29.1 GPM | 21.1 GPM | 21.5 GPM | 20.6 GPM |
| Fuel Tank | 17.4 gal | 10.6 gal | 13.7 gal | 13.2 gal |
| Telematics | KubotaNOW standard | JDLink optional | Cat Product Link optional | MaxControl optional |
| Zero Tail Swing | Yes | Yes | Yes | Yes |
The Kubota KX040-5 is stocked and available through all Bingham Equipment Arizona locations. Contact your nearest location in Lakeside, Casa Grande, Yuma, or our other Arizona stores for current inventory, demo availability, and custom quotes. Use the store locator to find your closest branch and speak with an equipment specialist who knows your local job conditions.
Compatible Attachments and Implements
The KX040-5's dual-flow auxiliary hydraulic system (17.2 GPM high flow / 9.8 GPM standard flow) supports a wide range of work tools. Kubota's attachment lineup is engineered to the same precision fit and finish as the base machine, ensuring proper hydraulic match, pin compatibility, and safe working loads. Ask your Bingham Equipment specialist about availability and pricing on any attachment below.
Excavating and Earthmoving
Breaking and Demolition
Drilling and Soil Work
Lifting and Handling
Grading and Surface Work
Contact any Bingham Equipment Arizona location to confirm attachment compatibility with your specific KX040-5 configuration, and to get current pricing and lead times.
Shop KX040-5 Parts at Bingham Equipment
Keeping your KX040-5 running is just as important as buying the right machine. Bingham Equipment carries Kubota OEM parts for the KX040-5 and can source what we don't have on hand quickly through our Kubota parts network.
Find the Right Part, Every Time
Use Bingham Equipment's online parts fitment tool to find components designed specifically for your KX040-5 by serial number and model code. Filter by system (hydraulics, undercarriage, engine, electrical) and get to the exact part you need without guessing. OEM quality means correct fit, correct tolerances, and warranty compliance on every order.
- Engine and drivetrain components — filters, belts, seals, and gaskets matched to your exact engine model
- Undercarriage parts — tracks, rollers, sprockets, and idlers for rubber and steel track configurations
- Hydraulic system components — hoses, fittings, pumps, and cylinders for your auxiliary and main circuits
- Attachments and buckets — wear edges, cutting edges, teeth, and side cutters for extended bucket life
- Cab and operator comfort — glass, seals, wiper blades, and interior components for canopy or cab configurations