Kubota KX040-4 is a compact mini excavator designed for construction, landscaping, utility, and site preparation work. It is part of Kubota's KX series and is commonly used where maneuverability, digging performance, and transportability are important. The KX040-4 typically features a zero-tail-swing design, hydraulic pilot controls, and a cab or canopy configuration depending on specification. It is used for trenching, grading, lifting, and material handling in confined job sites. As a mini excavator, the Kubota KX040-4 is suited to contractors needing a balance of digging depth, stability, and compact dimensions for urban and residential applications.
General Specifications
Kubota KX040-4 Mini Excavator General Specifications specifications
Digging Depth
11.30 ft (3.44 m) — Starting 2025 Model Year
Digging Reach
17.10 ft (5.21 m) — Starting 2025 Model Year
Engine
40.90 hp (30.50 kw) — Starting 2025 Model Year
Operating Weight
9,195.00 lbs (4,170.07 kg) — Starting 2025 Model Year
Blades
Kubota KX040-4 Mini Excavator Blades specifications
Angle blade height
15.20 in (38.61 cm)
Angle blade swing angle
25 degrees
Angle blade width
67.00 in (170.18 cm)
Blade Height
13.80 in (35.05 cm)
Blade Width
5.60 ft (1.71 m)
Maximum Drop below ground
1.40 ft (0.43 m)
Maximum lift above ground
1.40 ft (0.43 m)
Boom/Stick Excavator Option 1
Kubota KX040-4 Mini Excavator Boom/Stick Excavator Option 1 specifications
Max Digging Depth
11.30 ft (3.44 m)
Max Digging Height
17.60 ft (5.36 m)
Max Vertical Wall Digging Depth
7.40 ft (2.26 m)
Max. breakout force Bucket
9,535.00 lbs (4,324.26 kg)
Max. breakoutArm
4,112.00 lbs (1,864.85 kg)
Max.Dumping Height
12.80 ft (3.90 m)
Mximum dig radius
213.00 in (541.02 cm)
Brakes
Kubota KX040-4 Mini Excavator Brakes specifications
Parking brake
Auto travel house swivel
Dimensions
Kubota KX040-4 Mini Excavator Dimensions specifications
Digging Depth
11.30 ft (3.44 m)
Digging Reach
17.80 ft (5.43 m)
Ground Clearance
1.10 ft (0.34 m)
Height
97.90 in (248.67 cm)
Height - Top of Cab
8.20 ft (2.50 m)
Length of Track on Ground
16.70 ft (5.09 m)
Shoe width
1.20 ft (0.37 m)
Tail Swing Radius
4.30 ft (1.31 m)
Width
5.60 ft (1.71 m)
DRIVE SYSTEM
Kubota KX040-4 Mini Excavator DRIVE SYSTEM specifications
Max. traction force-Low speed
9,747.00 lbs (4,420.41 kg)
Electrical System
Kubota KX040-4 Mini Excavator Electrical System specifications
Battery capacity
52 AH
Battery voltage
12 VDC
Engine shut-off
Key
Instrument panel
Digital
Lighting
Front working
Engine
Kubota KX040-4 Mini Excavator Engine specifications
Air filter type
Dual element cyclonic
Aspiration
Turbo
Cooling method
Liquid
Displacement
111.40 cu in (1,825.52 cu cm)
Engine Make
Kubota
Engine Model
D1803-CR-TE4
Engine Type
Water cooled
EPA
Tier 4
Fuel Type
Diesel
Gross Power
40.40 hp (30.13 kw)
Injection
Direct
Model Name
KX040-4
Number of Cylinders
3
Oil filtration
Spin-on type
Power Measured @
2200 rpm
Radiator Core type
Low noise F shaped blades
Operating Specifications
Kubota KX040-4 Mini Excavator Operating Specifications specifications
Fuel Capacity
17.00 gal (64.35 l)
Ground Pressure
4.5 psi
Hydraulic Pump Flow Capacity
6.50 gpm (24.60 lpm)
Hydraulic System Fluid Capacity
17.20 gal (65.10 l)
Operating weight Cabin
9,326.00 lbs (4,229.48 kg)
Swing Mechanism
Kubota KX040-4 Mini Excavator Swing Mechanism specifications
Swing Speed
9.2 rpm
Undercarriage
Kubota KX040-4 Mini Excavator Undercarriage specifications
Ground Pressure
4.4 psi
Max Travel Speed
3.10 mph (4.99 kph)
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